ElphelWiki - User contributions [en]

Public Primary School Rosa Boekdrukker

2008-05-13T12:00:38Z

Karin: /* Problem */

== The School==
The public primary school Rosa Boekdrukker in Amsterdam is probably the only primary school in the Netherlands that develops OSS/GPL educational software. We made a CMS and a client-server system, both for primary education.
Please see links below.

Our school can take part in a broadband fiber school
network experiment that is being carried out in Amsterdam. In the coming years all schools in Amsterdam will have fiber broadband connections to the Internet and a 1Gb fiber broadband LAN with the schools under one board. We want to experiment with audio and video on the network

== Why Elphel? ==
Our School tries to do as much as possible with Open Source because we think that's what education is about: sharing knowledge. In that sense we became interested in the Elphel camera. It's OSS/GPL, even the hardware! And it gives high resolution output. In our opinion, using a broadband connetion and connecting a cheap low-level webcam and a carbon :-) mic to it is stupid. As a microphone we use a Sennheiser MD421.
In this way we hope the end user benefits as much as possible from the qualities a fiber network can deliver.

== Usage (technical) ==
We will use the camera in our schools LAN, either hand held or on a tripod. Maybe we can build a portable camera. Our volunteer developed cameras for psychiatric and educational use in the days of the b/w vidicons.

== The Camera Arrives: getting started ==
Wow! It's a beauty! Now let's see if we, simple teachers, can get this thing to work. We dowloaded the PDF manual and went to page 8.
It's not completely clear how to setup connections because the picture of the power supply differs from what we have in our hands.

Our PS has two RJ45 connectors labeled: Data in and PoE OUT.
PoE out: it seems reasonable to connect that one to the camera.
On the other hand, 'Data In' could be referring to the data coming _from_ the camera.
We are in doubt. And decide to ask for help.
Could it be an idea to provide some simple drawing in which three setups are drawn with cables and cable types (standard RJ45 and Crossover):

1. Camera on computer
2. Camera on switch without PoE
3. Camera on switch with PoE

Waiting for the answer, we will download teh Live-CD at Sourceforge. We go 'Download' > 'Browse All Files'. We find 'live-cd' (version 2.0.0) and 'Download'. We click the 'Download' link. We can download the live DVD2.0.0.tar! We have no DVD! We want the CD. We try 1.5.1., a tar.gz. After uncompressing we have a directory with a bunch of files. With the aid of Knoppix we can compile a CD. That't to complicated for us. There is no .iso image from which we can burn a Live-CD.
What to do? Where is the .iso image?
Tomorrow we will ask.
The next morning, we try again on Sourceforge. Finally we find an .iso image:
knoppix-elphel-1.5.0.1.iso
This may seem rediculous, searching for an .iso, but I am visually impaired and not experienced, so I need clear cut directions.

Notes for a teacher manual:

- what's in the box

- lens, camera, RING. Do not foret the ring. When we removed the C mount front cap from the camera body, accidentally the ring stayed on the cap. When we attached the lens, we could not get a sharp image because of the missing ring.
When we screw the ring on the lens, the back focus distance was correct.

- connecting the various pieces (cables & cable types) (picture + explanation)
- Downloading the CD

- Requirements of PC. P3 800+ 256MB ram cannot play stream via mplayer.

- set BIOS to start from CD

- basic checks

- focussing the camera

- set network to a 192.168.0 range

- use firefox to go to http://192.168.0.9
- enable popup windows in FF

Tuesday 19 march

We made some progress. The camera is in our schoolnetwork. Can be reached by gong httP://camera inside the school. We use DHCP.

Is the camera setup GUI password protectable?

The camera works great with VLC. No special tricks, no patches, just the normal download an the tucows.dll

== Usage (content) ==
We have several ideas on the usage of cameras and sound over fiber broadband which we want to investigate. Among them are: giving parents access to classrooms during lessons over Internet, online classroom access for children ill at home, public lessons over the Internet, using the school unstaffed by others, children creating podcasts as project research documentation, to name a few.
Now that we have the camera working in school we decided what the first project would be: Ill children at home. This happens at a lot of schools. A child has a broken leg, another has an interstine problem, etc. These chidres stay at home for weeks or even months, miss a lot of lessons, slowly lose thier learning abilities, etcetera. The project is alos interesting for other schools.
End result of this project would be an English manual describing the complete setup in such a way that ohter schools can make use of the knowledge.

== Project ==
What we want is the following:
Classroom:
An Elphel camera, a microphone, a monitor and speakers in the classroom.

At home:
A webcam with build in microphone, connected to the home PC (Windows) and speakers or headphone.

We have a good microphone (sennhieser MD 421), a webcam with built in microphone and it's software, speakers, headphones.

We first want to setup a test environment in school (no firewall problems).

== Problem ==
Now our problems start and we hope someone in this community can help us.

Questions:

1. How do we create an audio stream? On the web we only find stuff that creates '''files'''. We do not need files and we do not want to save anything. AFAIK we only need a plain stream, just as the camera does. Please bear in mind that software must be free (schools all over the world are poor) and if possible with source.

2.How can we send both the video (Elphel) and audio (microphone) stream to VLC?
In our school we can use a windows or linux workstation and we have a Linux server.

More problems will arise, but this is the start.
Any help would be greatly appreciated.

== Links ==
[http://rosaboekdrukker.net Our schools homepage]

[http://siteatschool.org Our CMS]

[http://serveratschool.org Our server-client system]

[http://strict.nu Association "Schools Together Ritch with ICT"]

[http://utopia.knoware.nl/users/schoutdi Articles on the use of media in education]

Public Primary School Rosa Boekdrukker

2008-05-13T11:38:30Z

Karin: /* Problem */

== The School==
The public primary school Rosa Boekdrukker in Amsterdam is probably the only primary school in the Netherlands that develops OSS/GPL educational software. We made a CMS and a client-server system, both for primary education.
Please see links below.

Our school can take part in a broadband fiber school
network experiment that is being carried out in Amsterdam. In the coming years all schools in Amsterdam will have fiber broadband connections to the Internet and a 1Gb fiber broadband LAN with the schools under one board. We want to experiment with audio and video on the network

== Why Elphel? ==
Our School tries to do as much as possible with Open Source because we think that's what education is about: sharing knowledge. In that sense we became interested in the Elphel camera. It's OSS/GPL, even the hardware! And it gives high resolution output. In our opinion, using a broadband connetion and connecting a cheap low-level webcam and a carbon :-) mic to it is stupid. As a microphone we use a Sennheiser MD421.
In this way we hope the end user benefits as much as possible from the qualities a fiber network can deliver.

== Usage (technical) ==
We will use the camera in our schools LAN, either hand held or on a tripod. Maybe we can build a portable camera. Our volunteer developed cameras for psychiatric and educational use in the days of the b/w vidicons.

== The Camera Arrives: getting started ==
Wow! It's a beauty! Now let's see if we, simple teachers, can get this thing to work. We dowloaded the PDF manual and went to page 8.
It's not completely clear how to setup connections because the picture of the power supply differs from what we have in our hands.

Our PS has two RJ45 connectors labeled: Data in and PoE OUT.
PoE out: it seems reasonable to connect that one to the camera.
On the other hand, 'Data In' could be referring to the data coming _from_ the camera.
We are in doubt. And decide to ask for help.
Could it be an idea to provide some simple drawing in which three setups are drawn with cables and cable types (standard RJ45 and Crossover):

1. Camera on computer
2. Camera on switch without PoE
3. Camera on switch with PoE

Waiting for the answer, we will download teh Live-CD at Sourceforge. We go 'Download' > 'Browse All Files'. We find 'live-cd' (version 2.0.0) and 'Download'. We click the 'Download' link. We can download the live DVD2.0.0.tar! We have no DVD! We want the CD. We try 1.5.1., a tar.gz. After uncompressing we have a directory with a bunch of files. With the aid of Knoppix we can compile a CD. That't to complicated for us. There is no .iso image from which we can burn a Live-CD.
What to do? Where is the .iso image?
Tomorrow we will ask.
The next morning, we try again on Sourceforge. Finally we find an .iso image:
knoppix-elphel-1.5.0.1.iso
This may seem rediculous, searching for an .iso, but I am visually impaired and not experienced, so I need clear cut directions.

Notes for a teacher manual:

- what's in the box

- lens, camera, RING. Do not foret the ring. When we removed the C mount front cap from the camera body, accidentally the ring stayed on the cap. When we attached the lens, we could not get a sharp image because of the missing ring.
When we screw the ring on the lens, the back focus distance was correct.

- connecting the various pieces (cables & cable types) (picture + explanation)
- Downloading the CD

- Requirements of PC. P3 800+ 256MB ram cannot play stream via mplayer.

- set BIOS to start from CD

- basic checks

- focussing the camera

- set network to a 192.168.0 range

- use firefox to go to http://192.168.0.9
- enable popup windows in FF

Tuesday 19 march

We made some progress. The camera is in our schoolnetwork. Can be reached by gong httP://camera inside the school. We use DHCP.

Is the camera setup GUI password protectable?

The camera works great with VLC. No special tricks, no patches, just the normal download an the tucows.dll

== Usage (content) ==
We have several ideas on the usage of cameras and sound over fiber broadband which we want to investigate. Among them are: giving parents access to classrooms during lessons over Internet, online classroom access for children ill at home, public lessons over the Internet, using the school unstaffed by others, children creating podcasts as project research documentation, to name a few.
Now that we have the camera working in school we decided what the first project would be: Ill children at home. This happens at a lot of schools. A child has a broken leg, another has an interstine problem, etc. These chidres stay at home for weeks or even months, miss a lot of lessons, slowly lose thier learning abilities, etcetera. The project is alos interesting for other schools.
End result of this project would be an English manual describing the complete setup in such a way that ohter schools can make use of the knowledge.

== Project ==
What we want is the following:
Classroom:
An Elphel camera, a microphone, a monitor and speakers in the classroom.

At home:
A webcam with build in microphone, connected to the home PC (Windows) and speakers or headphone.

We have a good microphone (sennhieser MD 421), a webcam with built in microphone and it's software, speakers, headphones.

We first want to setup a test environment in school (no firewall problems).

== Problem ==
Now our problems start and we hope someone in this community can help us.

Questions:

1. How do we create an audio stream? On the web we only find stuff that creates '''files'''. We do not need files and we do not want to save anything. AFAIK we only need a plain stream, just as the camera does.

2.How can we send both the video (Elphel) and audio (microphone) stream to VLC?
In our school we can use a windows or linux workstation and we have a Linux server.

More problems will arise, but this is the start.
Any help would be greatly appreciated.

== Links ==
[http://rosaboekdrukker.net Our schools homepage]

[http://siteatschool.org Our CMS]

[http://serveratschool.org Our server-client system]

[http://strict.nu Association "Schools Together Ritch with ICT"]

[http://utopia.knoware.nl/users/schoutdi Articles on the use of media in education]

Public Primary School Rosa Boekdrukker

2008-05-13T11:36:15Z

Karin: /* Problem */

== The School==
The public primary school Rosa Boekdrukker in Amsterdam is probably the only primary school in the Netherlands that develops OSS/GPL educational software. We made a CMS and a client-server system, both for primary education.
Please see links below.

Our school can take part in a broadband fiber school
network experiment that is being carried out in Amsterdam. In the coming years all schools in Amsterdam will have fiber broadband connections to the Internet and a 1Gb fiber broadband LAN with the schools under one board. We want to experiment with audio and video on the network

== Why Elphel? ==
Our School tries to do as much as possible with Open Source because we think that's what education is about: sharing knowledge. In that sense we became interested in the Elphel camera. It's OSS/GPL, even the hardware! And it gives high resolution output. In our opinion, using a broadband connetion and connecting a cheap low-level webcam and a carbon :-) mic to it is stupid. As a microphone we use a Sennheiser MD421.
In this way we hope the end user benefits as much as possible from the qualities a fiber network can deliver.

== Usage (technical) ==
We will use the camera in our schools LAN, either hand held or on a tripod. Maybe we can build a portable camera. Our volunteer developed cameras for psychiatric and educational use in the days of the b/w vidicons.

== The Camera Arrives: getting started ==
Wow! It's a beauty! Now let's see if we, simple teachers, can get this thing to work. We dowloaded the PDF manual and went to page 8.
It's not completely clear how to setup connections because the picture of the power supply differs from what we have in our hands.

Our PS has two RJ45 connectors labeled: Data in and PoE OUT.
PoE out: it seems reasonable to connect that one to the camera.
On the other hand, 'Data In' could be referring to the data coming _from_ the camera.
We are in doubt. And decide to ask for help.
Could it be an idea to provide some simple drawing in which three setups are drawn with cables and cable types (standard RJ45 and Crossover):

1. Camera on computer
2. Camera on switch without PoE
3. Camera on switch with PoE

Waiting for the answer, we will download teh Live-CD at Sourceforge. We go 'Download' > 'Browse All Files'. We find 'live-cd' (version 2.0.0) and 'Download'. We click the 'Download' link. We can download the live DVD2.0.0.tar! We have no DVD! We want the CD. We try 1.5.1., a tar.gz. After uncompressing we have a directory with a bunch of files. With the aid of Knoppix we can compile a CD. That't to complicated for us. There is no .iso image from which we can burn a Live-CD.
What to do? Where is the .iso image?
Tomorrow we will ask.
The next morning, we try again on Sourceforge. Finally we find an .iso image:
knoppix-elphel-1.5.0.1.iso
This may seem rediculous, searching for an .iso, but I am visually impaired and not experienced, so I need clear cut directions.

Notes for a teacher manual:

- what's in the box

- lens, camera, RING. Do not foret the ring. When we removed the C mount front cap from the camera body, accidentally the ring stayed on the cap. When we attached the lens, we could not get a sharp image because of the missing ring.
When we screw the ring on the lens, the back focus distance was correct.

- connecting the various pieces (cables & cable types) (picture + explanation)
- Downloading the CD

- Requirements of PC. P3 800+ 256MB ram cannot play stream via mplayer.

- set BIOS to start from CD

- basic checks

- focussing the camera

- set network to a 192.168.0 range

- use firefox to go to http://192.168.0.9
- enable popup windows in FF

Tuesday 19 march

We made some progress. The camera is in our schoolnetwork. Can be reached by gong httP://camera inside the school. We use DHCP.

Is the camera setup GUI password protectable?

The camera works great with VLC. No special tricks, no patches, just the normal download an the tucows.dll

== Usage (content) ==
We have several ideas on the usage of cameras and sound over fiber broadband which we want to investigate. Among them are: giving parents access to classrooms during lessons over Internet, online classroom access for children ill at home, public lessons over the Internet, using the school unstaffed by others, children creating podcasts as project research documentation, to name a few.
Now that we have the camera working in school we decided what the first project would be: Ill children at home. This happens at a lot of schools. A child has a broken leg, another has an interstine problem, etc. These chidres stay at home for weeks or even months, miss a lot of lessons, slowly lose thier learning abilities, etcetera. The project is alos interesting for other schools.
End result of this project would be an English manual describing the complete setup in such a way that ohter schools can make use of the knowledge.

== Project ==
What we want is the following:
Classroom:
An Elphel camera, a microphone, a monitor and speakers in the classroom.

At home:
A webcam with build in microphone, connected to the home PC (Windows) and speakers or headphone.

We have a good microphone (sennhieser MD 421), a webcam with built in microphone and it's software, speakers, headphones.

We first want to setup a test environment in school (no firewall problems).

== Problem ==
Now our problems start and we hope someone in this community can help us.

Questions:
How do we create an audio stream? On the web we only find stuff that creates '''files'''. We do not need files and we do not want to save anything. AFAIK we only need a plain stream, just as the camera does.

How can we send both the video (Elphel) and audio (microphone) stream to VLC?
In our school we can use a windows or linux workstation and we have a Linux server.

More problems will arise, but this is the start.
Any help would be greatly appreciated.

== Links ==
[http://rosaboekdrukker.net Our schools homepage]

[http://siteatschool.org Our CMS]

[http://serveratschool.org Our server-client system]

[http://strict.nu Association "Schools Together Ritch with ICT"]

[http://utopia.knoware.nl/users/schoutdi Articles on the use of media in education]

Public Primary School Rosa Boekdrukker

2008-05-13T11:22:00Z

Karin: /* Usage (content) */

== The School==
The public primary school Rosa Boekdrukker in Amsterdam is probably the only primary school in the Netherlands that develops OSS/GPL educational software. We made a CMS and a client-server system, both for primary education.
Please see links below.

Our school can take part in a broadband fiber school
network experiment that is being carried out in Amsterdam. In the coming years all schools in Amsterdam will have fiber broadband connections to the Internet and a 1Gb fiber broadband LAN with the schools under one board. We want to experiment with audio and video on the network

== Why Elphel? ==
Our School tries to do as much as possible with Open Source because we think that's what education is about: sharing knowledge. In that sense we became interested in the Elphel camera. It's OSS/GPL, even the hardware! And it gives high resolution output. In our opinion, using a broadband connetion and connecting a cheap low-level webcam and a carbon :-) mic to it is stupid. As a microphone we use a Sennheiser MD421.
In this way we hope the end user benefits as much as possible from the qualities a fiber network can deliver.

== Usage (technical) ==
We will use the camera in our schools LAN, either hand held or on a tripod. Maybe we can build a portable camera. Our volunteer developed cameras for psychiatric and educational use in the days of the b/w vidicons.

== The Camera Arrives: getting started ==
Wow! It's a beauty! Now let's see if we, simple teachers, can get this thing to work. We dowloaded the PDF manual and went to page 8.
It's not completely clear how to setup connections because the picture of the power supply differs from what we have in our hands.

Our PS has two RJ45 connectors labeled: Data in and PoE OUT.
PoE out: it seems reasonable to connect that one to the camera.
On the other hand, 'Data In' could be referring to the data coming _from_ the camera.
We are in doubt. And decide to ask for help.
Could it be an idea to provide some simple drawing in which three setups are drawn with cables and cable types (standard RJ45 and Crossover):

1. Camera on computer
2. Camera on switch without PoE
3. Camera on switch with PoE

Waiting for the answer, we will download teh Live-CD at Sourceforge. We go 'Download' > 'Browse All Files'. We find 'live-cd' (version 2.0.0) and 'Download'. We click the 'Download' link. We can download the live DVD2.0.0.tar! We have no DVD! We want the CD. We try 1.5.1., a tar.gz. After uncompressing we have a directory with a bunch of files. With the aid of Knoppix we can compile a CD. That't to complicated for us. There is no .iso image from which we can burn a Live-CD.
What to do? Where is the .iso image?
Tomorrow we will ask.
The next morning, we try again on Sourceforge. Finally we find an .iso image:
knoppix-elphel-1.5.0.1.iso
This may seem rediculous, searching for an .iso, but I am visually impaired and not experienced, so I need clear cut directions.

Notes for a teacher manual:

- what's in the box

- lens, camera, RING. Do not foret the ring. When we removed the C mount front cap from the camera body, accidentally the ring stayed on the cap. When we attached the lens, we could not get a sharp image because of the missing ring.
When we screw the ring on the lens, the back focus distance was correct.

- connecting the various pieces (cables & cable types) (picture + explanation)
- Downloading the CD

- Requirements of PC. P3 800+ 256MB ram cannot play stream via mplayer.

- set BIOS to start from CD

- basic checks

- focussing the camera

- set network to a 192.168.0 range

- use firefox to go to http://192.168.0.9
- enable popup windows in FF

Tuesday 19 march

We made some progress. The camera is in our schoolnetwork. Can be reached by gong httP://camera inside the school. We use DHCP.

Is the camera setup GUI password protectable?

The camera works great with VLC. No special tricks, no patches, just the normal download an the tucows.dll

== Usage (content) ==
We have several ideas on the usage of cameras and sound over fiber broadband which we want to investigate. Among them are: giving parents access to classrooms during lessons over Internet, online classroom access for children ill at home, public lessons over the Internet, using the school unstaffed by others, children creating podcasts as project research documentation, to name a few.
Now that we have the camera working in school we decided what the first project would be: Ill children at home. This happens at a lot of schools. A child has a broken leg, another has an interstine problem, etc. These chidres stay at home for weeks or even months, miss a lot of lessons, slowly lose thier learning abilities, etcetera. The project is alos interesting for other schools.
End result of this project would be an English manual describing the complete setup in such a way that ohter schools can make use of the knowledge.

== Project ==
What we want is the following:
Classroom:
An Elphel camera, a microphone, a monitor and speakers in the classroom.

At home:
A webcam with build in microphone, connected to the home PC (Windows) and speakers or headphone.

We have a good microphone (sennhieser MD 421), a webcam with built in microphone and it's software, speakers, headphones.

We first want to setup a test environment in school (no firewall problems).

== Problem ==
Now our problems start and we hope someone in this community can help us.

Questions:
How do we create an audio stream?

How can we send both the video (Elphel) and audio (microphone) stream to VLC?
In our school we can use a windows or linux workstation and we have a Linux server.

More problems will arise, but this is the start.
Any help would be greatly appreciated.

== Links ==
[http://rosaboekdrukker.net Our schools homepage]

[http://siteatschool.org Our CMS]

[http://serveratschool.org Our server-client system]

[http://strict.nu Association "Schools Together Ritch with ICT"]

[http://utopia.knoware.nl/users/schoutdi Articles on the use of media in education]

Public Primary School Rosa Boekdrukker

2008-05-13T10:50:17Z

Karin: /* The Camera Arrives: getting started */

== The School==
The public primary school Rosa Boekdrukker in Amsterdam is probably the only primary school in the Netherlands that develops OSS/GPL educational software. We made a CMS and a client-server system, both for primary education.
Please see links below.

Our school can take part in a broadband fiber school
network experiment that is being carried out in Amsterdam. In the coming years all schools in Amsterdam will have fiber broadband connections to the Internet and a 1Gb fiber broadband LAN with the schools under one board. We want to experiment with audio and video on the network

== Why Elphel? ==
Our School tries to do as much as possible with Open Source because we think that's what education is about: sharing knowledge. In that sense we became interested in the Elphel camera. It's OSS/GPL, even the hardware! And it gives high resolution output. In our opinion, using a broadband connetion and connecting a cheap low-level webcam and a carbon :-) mic to it is stupid. As a microphone we use a Sennheiser MD421.
In this way we hope the end user benefits as much as possible from the qualities a fiber network can deliver.

== Usage (technical) ==
We will use the camera in our schools LAN, either hand held or on a tripod. Maybe we can build a portable camera. Our volunteer developed cameras for psychiatric and educational use in the days of the b/w vidicons.

== The Camera Arrives: getting started ==
Wow! It's a beauty! Now let's see if we, simple teachers, can get this thing to work. We dowloaded the PDF manual and went to page 8.
It's not completely clear how to setup connections because the picture of the power supply differs from what we have in our hands.

Our PS has two RJ45 connectors labeled: Data in and PoE OUT.
PoE out: it seems reasonable to connect that one to the camera.
On the other hand, 'Data In' could be referring to the data coming _from_ the camera.
We are in doubt. And decide to ask for help.
Could it be an idea to provide some simple drawing in which three setups are drawn with cables and cable types (standard RJ45 and Crossover):

1. Camera on computer
2. Camera on switch without PoE
3. Camera on switch with PoE

Waiting for the answer, we will download teh Live-CD at Sourceforge. We go 'Download' > 'Browse All Files'. We find 'live-cd' (version 2.0.0) and 'Download'. We click the 'Download' link. We can download the live DVD2.0.0.tar! We have no DVD! We want the CD. We try 1.5.1., a tar.gz. After uncompressing we have a directory with a bunch of files. With the aid of Knoppix we can compile a CD. That't to complicated for us. There is no .iso image from which we can burn a Live-CD.
What to do? Where is the .iso image?
Tomorrow we will ask.
The next morning, we try again on Sourceforge. Finally we find an .iso image:
knoppix-elphel-1.5.0.1.iso
This may seem rediculous, searching for an .iso, but I am visually impaired and not experienced, so I need clear cut directions.

Notes for a teacher manual:

- what's in the box

- lens, camera, RING. Do not foret the ring. When we removed the C mount front cap from the camera body, accidentally the ring stayed on the cap. When we attached the lens, we could not get a sharp image because of the missing ring.
When we screw the ring on the lens, the back focus distance was correct.

- connecting the various pieces (cables & cable types) (picture + explanation)
- Downloading the CD

- Requirements of PC. P3 800+ 256MB ram cannot play stream via mplayer.

- set BIOS to start from CD

- basic checks

- focussing the camera

- set network to a 192.168.0 range

- use firefox to go to http://192.168.0.9
- enable popup windows in FF

Tuesday 19 march

We made some progress. The camera is in our schoolnetwork. Can be reached by gong httP://camera inside the school. We use DHCP.

Is the camera setup GUI password protectable?

The camera works great with VLC. No special tricks, no patches, just the normal download an the tucows.dll

== Usage (content) ==
We have several ideas on the usage of cameras and sound over fiber broadband which we want to investigate. Among them are: giving parents access to classrooms during lessons over Internet, online classroom access for children ill at home, public lessons over the Internet, using the school unstaffed by others, children creating podcasts as project research documentation, to name a few.

== Links ==
[http://rosaboekdrukker.net Our schools homepage]

[http://siteatschool.org Our CMS]

[http://serveratschool.org Our server-client system]

[http://strict.nu Association "Schools Together Ritch with ICT"]

[http://utopia.knoware.nl/users/schoutdi Articles on the use of media in education]

Public Primary School Rosa Boekdrukker

2008-03-18T14:21:15Z

Karin: /* The Camera Arrives: getting started */

Using the cameras

2008-03-18T08:26:36Z

Karin: /* PoE switch */

{{Manual Header}}

== Introduction ==

Elphel network cameras — complex devices in whose development advanced technologies and non-standard program decisions are used. We constantly improve our products so that users can use the cameras with the least expense of time and effort. In this section of Elphel Network Cameras Manual you can find detailed information about using Elphel cameras.

== Complete set ==

The complete camera delivery set includes the actual network camera Elphel-353/363, and Live-DVD with a special edition of the GNU/Linux operating system Ubuntu, complete with all the necessary software for the camera.

The complete delivery set can also include lenses, an external power unit and connection cables for an additional payment.

== Appearance ==

[[Image:Elphel2.jpg|thumb|Elphel NC353L network camera]] The Elphel NC353L camera case is folding and made of anodized aluminium. Overall dimensions 116х45х45 mm, weight approximately 150 g (without lens).

[[Image:Cam front.jpg]] The carving socket for standard C/CS-mount lenses is located on the front of the camera.

[[Image:Elphel3.jpg|thumb|Back side of the Elphel NC353L network camera]] On the back side of the camera case are located a socket for connection of a network cable, a switch-on push button for the software reloading mode, and camera's model number mark. We constantly improve our products, therefore the number and appearance of the elements placed on the back panel can change.

On the bottom of the camera case is the standard carving socket for installation of the camera on a support.

== Connection ==

[http://en.wikipedia.org/wiki/Power_over_Ethernet PoE] (IEEE 802.3af) technology is used to provide power to the Elphel cameras, using the same cable as that used for network connection.

The Elphel camera has a standard RJ-45 Ethernet port, and can be connected to a local network. This port is also used to provide power to the camera. You can do it in two ways:

1. Use the external power supply with integral DC Injector

2. Use the PoE switch with integral DC Injector

=== External power supply ===

[[image:power_supply.png]]

The power supply has two built in RJ-45 jacks. J1 jack provides 48VDC and is used for connection to camera. You must use CAT5 "Crossover" cable for connection between J1 and the camera's RJ-45 jack.

J2 jack is used for connection to a hub/switch. You must use standard CAT5 cable for connection between J2 and the hub/switch RJ-45 jack.

=== 2. PoE switch ===

[[image:poe_switch.jpg]]

PoE switches have special RJ-45 jacks which provide the 48VDC. You must use standard CAT5 cable for connection between the PoE switch special RJ-45 jacks and the camera's RJ-45 jack.

=== Necessary cables ===

[[image:cable.jpg]]

Two cable types are necessary for Elphel cameras - standard CAT5 cable and CAT5 "Crossover" cable if ''the camera is connected directly to the computer''. Crossover cable is the same as used to connect two computers together with a single cable. If the camera is connected to a switch/hub (directly to the powered switch or through additional ''midspan'' power supply) no crossover cable is needed, all cables are straight.

How to wire a "Crossover" Cable.

<table width="600" border="1" cellpadding="0" cellspacing="0" >
<tr>
<td>
<div align="center">connector #1</div>
</td>
<td>
<div align="center">connector #2</div>
</td>
</tr>
<tr>
<td height="135">
<p align="center">
1 WHT/ORG<br>
2 ORG/WHT<br>
3 WHT/GRN<br>
4 BLU/WHT<br>
5 WHT/BLU<br>
6 GRN/WHT<br>
7 WHT/BRN<br>
8 BRN/WHT</p>
</td>
<td height="135">
<p align="center">
1 WHT/GRN<br>
2 GRN/WHT<br>
3 WHT/ORG<br>
4 BLU/WHT<br>
5 WHT/BLU<br>
6 ORG/WHT<br>
7 BRN/WHT<br>
8 WHT/BRN</p>
</td>
</tr>
</table>

Color abbreviations:

WHT-WHITE

BRN-BROWN

ORG-ORANGE

GRN-GREEN

BLU-BLUE

The first color listed in the color pair is the dominant color of the wire. In other words, WHT/ORG is a white wire with orange stripes.

== Main Control Page ==

The Main Control Page uses javaScript to process user input (input fields and window of interest that can be selected by dragging a frame with the mouse), and combines all the camera acquisition parameters in a single GET request to a CGI program in the camera through the embedded web server (Boa). Currently the camera does not support simultaneous access as each request actually controls the camera operation mode (including sensor resolution and frame rate) and does not just connect to the camera output.

=== Page layout ===

On the top part of the page you should see a preview image. It is always 640x512, 800x600 or 512x386 pixels (1/2 or 1/4 of camera resolution depending on the sensor) and does not change with the selected decimation and window of interest (red rectangle over the image).

Below the preview image there are the camera controls:

=== General Controls ===

[[Image:Control panel 1.jpg]]

In the '''Window''' section there are 2 buttons at the bottom-right corner of window. You may specify window of interest (WOI) by dragging these buttons with the mouse. You may also change it numerically by entering data to '''W'''(idth), '''H'''(eight), '''L'''(eft) and '''T'''(op) input fields below. That numbers are rounded according to the selected sensor decimation and to use integer multiples of 16x16 pixels MCUs in JPEG compression. You may also change WOI by choosing one of the frequently used size from the list.

<table border=1><tr><td>

==== Autoexposure ====

By default the autoexposure is enabled. There is the special multicolor button for autoexposures management. The button colors is:

[[Image:Aegreen.png]] - Autoexposure is enabled

[[Image:Aered.png]] - Autoexposure is disabled

[[Image:Aeblue.png]] - The autoexposure control window is opened

When Autoexposure window is opened, the area of exposure calculating is appeared in the '''Window''' section.

In the Autoexposure window there are a few buttons for positioning the area of exposure calculating. The fields below are used for settings changing of the exposure calculating.

In the '''Screen zone''' field you can change the area which should be used for exposure calculating (in percents).

In the '''Analyze pixels 1/_number_''' field you can specify the amount of pixels which will be used for overlightening.

In the '''Max exposure''' field you can specify the maximal exposure time (in ms).

</td>
<td>

[[Image:Autoexp_1.png]]

</td></tr></table>

In the '''Exposure''' field there is an input field to specify frame exposure time (in ms) - it is possible to specify fractions. You may change this parameter by dragging the slider with the mouse.

'''Saturation''' section allows adjusting contrast saturation.

'''Gamma''' field controls contrast by adjusting intensity conversion, gamma=1.0 corresponds to linear response (high contrast). Values less than 1 increase input dynamic range by expanding low intensity values (low contrast). You may change this parameter by dragging the slider with the mouse.

JPEG '''Quality''' sets standard JPEG compression quality. The higher the quality the bigger the resulting file. It does not change the camera frame rate.

'''White balance''' section is a drop-down menu containing four static parameters: '''Sunlight''', '''Cloudy''', '''Incandenscent''' and '''Fluorescent'''. You can choose one of these parameters to achieve the highest quality image depending on the lighting conditions.

In the '''Image size''' drop-down menu you may choose the static window size.

In the '''Resolution''' section there are a drop-down menu containing a few parameters (from 0 to 8) for changing sensor decimation (resolution). 0 - full sensor decimation, 2 - 1/2 of full sensor decimation, 3 - 1/3 of full sensor decimation etc.

In the '''Binning''' section there are a drop-down menu containing a few parameters (from 0 to 3) which change the binning mode. Binning can be used only when decimation is greater than 1. Increases sensor sensitivity by combining values from several pixels instead of just discarding them (as done with just decimation).

[[Image:Color.jpg]] In monochrome mode (when the '''Color''' radiobutton is not checked) "R" gain settings are used for all channels and color conversion is disabled.

Below are 3 buttons '''Preview''', '''Reset''' and '''Apply'''. '''Preview''' button refreshes the image in the top portion on a page (ignoring selected WOI and decimation), The '''Reset''' button returns to the initial adjustment parameters. The '''Apply''' button is used to accept the new changes.

Also there are two links after '''Photo''': '''New''' contains a link to a camera CGI program that has all the acquisition parameters attached. You may just click it to open the image in a new window or right-click it and select "Save link target as..." (or equivalent) to save the image on your computer. The second link '''Last''' points to the last image already in the camera memory; you may use it to save the previously aquired image to your hard drive.

[[Image:Help.png]] button opens this help page.

[[Image:Info.png]] button opens the information window where there is a list of the acquisition parameters used during the last image/clip acquisition.

=== Video Controls ===

'''Video Controls''' in this section allow users to record a video clip in the camera memory and send it over the LAN/Internet as a Quicktime video file. All settings for the image size, resolution, compression quality, analog gains and exposure are the same as for still images described above, and that link adds extra parameters - '''Frame Rate''' and '''Time Scale'''. The first sets the desired frame rate (leave blank or set to 0 for the maximal rate), the second field sets how much the playback time is longer than the acquisition one. I.e. setting of "10" makes the clip play 10 times slower that it was shot.

Total size of the clip (6-7MB) is determined by a camera internal buffer used for compressed image storage and the total number of frames as the frame headers are attached during the clip output and are not stored in the buffer. There are 2 ways to shoot a clip (usual duration 3-5 sec, depending on compression quality). First is to press '''Start stream''' button, wait for the event to occur and then press '''Acquire'''. In this mode after '''Start stream''' the camera continuously writes to the buffer, overwriting footage when all the available space is used. Pressing the '''Stop stream''' button ends data saving and so the buffer contains the last data recorded. Another way is to press '''Acquire''' before the event. In that mode the clip recording starts after the trigger and stops when the whole buffer is full.

There are additional controls to preview a videoclip from the camera memory. Frame number 1 is the first one, 2 - second, etc. Frame number 0 is the last one in the clip, -1 - previous before last, etc. Any image acquisition (including '''Preview''') erases the stored clip and makes it one frame long.

Clicking on the '''Video Clip''' link opens the clip in the Apple QuickTime ™ (or compatible) player plugin (if installed) - you may also use this link to save the clip as a file on your computer.

=== Advanced Panel ===

[[Image:Control panel 2.jpg]]

'''Advanced Panel''' tab opens additional adjustment parameters for the image. In this section you may specify more exact adjustments of color levels of the image.

'''Gains''' section controls the sensor analog gain settings. '''R''', '''G''' and '''B''' input fields control color component gains. Using high gain settings increases sensor noise but is required to view fast events with 1ms exposure time with the lighting used in the current setup.

'''R-Y''' specifies color saturation for red color component.

'''B-Y''' specifies color saturation for blue color component.

'''B''' specifies color saturation for blue color component.

'''W''' specifies level saturation for white color component.

The '''Flip-X''' button allows turning the image horizontally.

The '''Flip-Y''' button allows turning the image vertically.

''NOTE: Some parameters (e.g. window size) cannot be changed without stopping the acquisition/compression.''

== Technical Information for the Elphel-353 ==

=== Default Setup ===

The default IP address of the camera is '''192.168.0.9''' netmask '''255.255.255.0'''

You should be able to ping the camera from another machine on the same subnet.

By default, the following TCP ports are open:

21/ftp

23/telnet

80/http (boa web server)

81/http (lighttpd web server [it will soon replace boa web server, actually both are available for testing])

=== Logging in ===

You can log in to the camera via telnet on TCP port 23

User: '''root'''

Password: '''pass'''

=== Serial port ===

The serial port settings (additional IO board [[10349]] is needed)

Speed: 19200 8N1

RTS/CTS: None

XON/XOFF : None

=== Changing IP address of the camera ===

The camera network settings can be changed by going to:

<code>http://<camera_ip>/axis.html</code>

from an attached computer.

=== Multicast routing in Linux ===

In order to receive the multicast streaming from the cameras, you need to add the following route rule to an attached PC:
route add -net 224.0.0.0 netmask 240.0.0.0 <interface>

where <interface> is the interface connected to the camera (e.g. eth0).

The [[ElphelSoftwareKit]] live DVD does this for you automatically.

----
''Free Software and Open Hardware. Elphel, Inc., 2005''

File:Elphel setup for computer.jpg

2008-03-18T08:16:40Z

Karin: Overview of connecting camera, external power supply nad integral DC Injector.

Overview of connecting camera, external power supply nad integral DC Injector.

Public Primary School Rosa Boekdrukker

2008-03-15T16:00:29Z

Karin: /* The Camera Arrives: getting started */

Public Primary School Rosa Boekdrukker

2008-03-15T15:58:56Z

Karin: /* The Camera Arrives: getting started */

Public Primary School Rosa Boekdrukker

2008-03-15T06:53:18Z

Karin: /* The Camera Arrives: getting started */

Public Primary School Rosa Boekdrukker

2008-03-14T17:43:54Z

Karin: /* The Camera Arrives: getting started */

Talk:Public Primary School Rosa Boekdrukker

2008-03-14T12:36:48Z

Karin: Lenses

Do you use Ubuntu GNU/Linux distribution ? If you use the 7.10 (last version) it will be really simple to add support for our softwares.

Our LiveDVD is needed mostly for peoples who do not know anything about GNU/Linux.

The manual (PDF) was written by somebody outside the company. (Contribution) And this manual is about 333 model. So it's outdated. The 1.5.1 CD is outdated (on this CD MPlayer is compatible with up to 3MP, not 5MP) and on sourceforge you got files to recompile our CD from the original Knoppix.

Officially Elphel propose only sources on SF.net and the Knoppix based DVD 2.0

The easy way to install our softwares on a Ubuntu (the way i do) is to add those 2 lines to your /etc/apt/sources.list :

deb http://ppa.launchpad.net/polto/ubuntu gutsy main
deb-src http://ppa.launchpad.net/polto/ubuntu gutsy main

then do:

apt-get update
apt-get install mplayer vlc elphelogm

That's it.

Feel free to contribute providing documentation on our wiki. We always welcome contributions.

--[[User:Polto|Alexandre.Poltorak]] 18:58, 11 March 2008 (CDT)

Thanks Alexandre,
Great advice! We will try it on Ubuntu (privately). I have 7.10.

However, due to Microsoft's dominatin in the Dutch educatinal market, virtually all Duthc primary schools use Windows on their desktop. Even our school cannot escape from it. That's why we choose Elphel. Becasue of it is independent from any OS.
Dirk

Ok, on windows you can use FireFox and we have a windows precompiled MPlayer on our sourceforge. (MPlayer is compilet without GUI, so it should be started from CMD) Also last version of VLC for windows (or any OS) can play up to HD resolution (1920x1080).

PS: to sign on the wiki in discussion pages you can use this sign: <nowiki>--~~~~</nowiki>

--[[User:Polto|Alexandre.Poltorak]] 10:17, 13 March 2008 (CDT)

Dear Alexandre,
I followed your advice on a Dutch Ubuntu 7.10 and did it as root. The elphelogm package did not install.
Running:
dirk@c30:~$ mplayer rtsp://192.168.0.9:7070/
MPlayer 2:1.0~rc1-0ubuntu13.1 (C) 2000-2006 MPlayer Team
CPU: Intel(R) Celeron(R) M CPU 440 @ 1.86GHz (Family: 6, Model: 14, Stepping: 12)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
Creating config file: /home/dirk/.mplayer/config
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing rtsp://192.168.0.9:7070/.
Resolving 192.168.0.9 for AF_INET6...
Couldn't resolve name for AF_INET6: 192.168.0.9
Connecting to server 192.168.0.9[192.168.0.9]: 7070...
connect error: Connection refused
STREAM_LIVE555, URL: rtsp://192.168.0.9:7070/
Stream not seekable!
file format detected.
Failed to get a SDP description from URL "rtsp://192.168.0.9:7070/": connect() failed: Connection refused

Exiting... (End of file)
dirk@c30:~$

This moring I tried the Elphel CD at school and had about the same error : connection refused.

We use VLC at school on Windowns and no luck too. Will try your precompiled Mplyer.
How do we use Firefox with Elphel?
Thanks for your help.
dirk

== Windowns mplayer ==

Dear Alexandre,
I donwloaded the mplayer from the Elphel Sourceforge site, unzipped etc. and ran it. Reults:

C:\>mplayer rtsp://192.168.0.9:7070/
MPlayer 1.0rc2-3.4.5 (C) 2000-2007 MPlayer Team
CPU: Intel Celeron 2/Pentium III Coppermine,Geyserville (Family: 6, Model: 8, St
epping: 6)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0
Compiled with runtime CPU detection.

Playing rtsp://192.168.0.9:7070/.
Connecting to server 192.168.0.9[192.168.0.9]: 7070...
connection timeout
STREAM_LIVE555, URL: rtsp://192.168.0.9:7070/
Stream not seekable!
file format detected.
Failed to get a SDP description from URL "rtsp://192.168.0.9:7070/": connect() f
ailed: No such file or directory

Exiting... (End of file)

C:\>
===========================
I really do not know what to do next.
Dirk

Dirk, port 7070 was used on 333 camera model, now it's port 554, so you need to point mplayer or vlc to rtsp://192.168.0.9:554

Firefox can not be used for live video, only for configuring the camera. So what you need to do is :

1) open the camera interface with firefox, set the resolution to 1920x1080 (for VLC)

2) enable the streamer (http://wiki.elphel.com/index.php?title=Image:StreamWiki2.jpg & http://wiki.elphel.com/index.php?title=Image:StreamWiki3.jpg)

when you can start MPlayer or VLC on rtsp://192.168.0.9:554

--[[User:Polto|Alexandre.Poltorak]] 14:47, 13 March 2008 (CDT)

== Lenses ==

Hello Alexandre,
Are these lenses usable with our camera?
http://www.order.conrad.com/cgi-perl/lshop.cgi?action=showrub&wkid=1195792342&ls=d&nc=&rubnum=a41.bl50.ap24.cc54&artnum=&file=&gesamt_zeilen=&shop=
Kind regards, and have a nice weekend,
Dirk

Talk:Public Primary School Rosa Boekdrukker

2008-03-13T19:39:45Z

Karin: Windowns mplayer

Talk:Public Primary School Rosa Boekdrukker

2008-03-13T18:16:06Z

Karin:

Talk:Public Primary School Rosa Boekdrukker

2008-03-13T08:55:35Z

Karin:

Public Primary School Rosa Boekdrukker

2008-03-13T08:06:46Z

Karin: /* The Camera Arrives: getting started */

Public Primary School Rosa Boekdrukker

2008-03-12T06:38:39Z

Karin: /* The Camera Arrives */

Public Primary School Rosa Boekdrukker

2008-03-11T17:37:16Z

Karin: /* The Camera Arrives */

Public Primary School Rosa Boekdrukker

2008-03-11T17:30:52Z

Karin: /* The Camera Arrives */

Public Primary School Rosa Boekdrukker

2008-03-11T17:29:33Z

Karin: /* Usage (technical) */

Public Primary School Rosa Boekdrukker

2008-02-20T11:49:03Z

Karin: /* Why Elphel? */

Public Primary School Rosa Boekdrukker

2008-02-20T11:44:53Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T11:42:16Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T11:40:49Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T11:38:19Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T11:36:11Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T11:34:22Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T10:20:34Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T10:17:35Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T10:06:41Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-20T10:05:57Z

Karin:

Public Primary School Rosa Boekdrukker

2008-02-19T15:07:32Z

Karin:

== The School==

The public primary school Rosa Boekdrukker in Amsterdam (the Netherlands) is probably the only primary school in the Netherlands that develops OSS/GPL educational software. Please see links below.

Our school can take part in a broadband fiber school
network experiment that is being carried out in
Amsterdam. In the coming years all schools in Amsterdam will have fiber broadband connections to the Internet.

== Why Elphel? ==

We try to do as much as possible with Open Source because we think that's what education is about: sharing knowledge. In that sense we became interested in the Elphel camera. It's OSS/GPL, even the hardware! And it gives high resolution output.

== Ideas (content) ==

| We have several ideas on the usage of cameras and sound over fiber broadband which we want to investigate. Among them are: giving parents access to classrooms over Internet, online classroom access for children ill at home, public lessons over the Internet, using the school unstaffed by others, children creating podcasts as project research documentation, to name a few.

=====Content up to here edited.===========
Le'st see if it stays here. Back this evening.

| Dpt. ICT of the Public Primary School 'Rosa Boekdrukker'
| Vancouverstraat 3 - 5
| 1056 DT Amsterdam
| tel: + 31 20 612 80 00
| http://rosaboekdrukker.net
| ict@rosaboekdrukker.nl
|
| Our OSS/GPL projects for elementary schools:
| - ServerAtSchool: a complete client-server system
| http://serveratschool.net
| - Site@School: website content management system (CMS)
| http://siteatschool.org
| - Our association 'Schools Together Rich with ICT' (STRICT)
| http://strict.nu
|

Public Primary School Rosa Boekdrukker

2008-02-19T14:55:48Z

Karin:

== The School==

The public primary school Rosa Boekdrukker in Amsterdam (the Netherlands) is probably the only primary school in the Netherlands that develops OSS/GPL educational software. Please see links below.

Our school can take part in a broadband fiber school
network experiment that is being carried out in
Amsterdam. In the coming years all schools in Amsterdam will have fiber broadband connections to the Internet.

== Why Elphel? ==

We try to do as much as possible with Open Source because we think that's what education is about: sharing knowledge. In that sense we became interested in the Elphel camera. It's OSS/GPL, even the hardware! And it gives high resolution output.

== Ideas (content) ==

| We have several ideas on the usage of cameras and sound over fiber broadband which we want to investigate. Among them are: giving parents access to classrooms over Internet, online classroom access for children ill at home, public lessons over the Internet, using the school unstaffed by others, children creating podcasts as project research documentation, to name a few.

Content up to here edited.
Le'st see if it stays here. Back this evening.

|
| We have the necessary background to setup and carry out
| such projects and report about them. See:
| http://utopia.knoware.nl/users/schoutdi
| Dirk Schouten is one of our volunteers and will help us
| with the practical matters.
|
-
| Dpt. ICT of the Public Primary School 'Rosa Boekdrukker'
| Vancouverstraat 3 - 5
| 1056 DT Amsterdam
| tel: + 31 20 612 80 00
| http://rosaboekdrukker.net
| ict@rosaboekdrukker.nl
|
| Our OSS/GPL projects for elementary schools:
| - ServerAtSchool: a complete client-server system
| http://serveratschool.net
| - Site@School: website content management system (CMS)
| http://siteatschool.org
| - Our association 'Schools Together Rich with ICT' (STRICT)
| http://strict.nu
|

Public Primary School Rosa Boekdrukker

2008-02-19T14:53:51Z

Karin:

== The School==

The public primary school Rosa Boekdrukker in Amsterdam (the Netherlands) is probably the only primary school in the Netherlands that develops OSS/GPL educational software. Please see links below.

Our school can take part in a broadband fiber school
network experiment that is being carried out in
Amsterdam. In the coming years all schools in Amsterdam will have fiber broadband connections to the Internet.

== Why Elphel? ==

We try to do as much as possible with Open Source because we think that's what education is about: sharing knowledge. In that sense we became interested in the Elphel camera. It's OSS/GPL, even the hardware! And it gives high resolution output.

== Ideas (content) ==

| We have several ideas on the usage of cameras and sound over fiber broadband which we want to investigate. Among them are: giving parents access to classrooms over Internet, online classroom access for children ill at home, public lessons over the Internet, using the school unstaffed by others, children creating podcasts as project research documentation, to name a few.

|
| We have the necessary background to setup and carry out
| such projects and report about them. See:
| http://utopia.knoware.nl/users/schoutdi
| Dirk Schouten is one of our volunteers and will help us
| with the practical matters.
|
| Our question is: would Elphel be interested in taking
| part in the experiments by helping the school to a
| camera? Ofcourse we will mention you whereever we can and
| write about our experiments in English and Dutch.
|
| Thank you for your attention, we hope you will help us.
| With kind regards,
|
| Karin Abma
| ICT coÃ¶rdinator
|
| --
| Dpt. ICT of the Public Primary School 'Rosa Boekdrukker'
| Vancouverstraat 3 - 5
| 1056 DT Amsterdam
| tel: + 31 20 612 80 00
| http://rosaboekdrukker.net
| ict@rosaboekdrukker.nl
|
| Our OSS/GPL projects for elementary schools:
| - ServerAtSchool: a complete client-server system
| http://serveratschool.net
| - Site@School: website content management system (CMS)
| http://siteatschool.org
| - Our association 'Schools Together Rich with ICT' (STRICT)
| http://strict.nu
|

Public Primary School Rosa Boekdrukker

2008-02-19T14:45:50Z

Karin:

== Intro here==

UserProjects

2008-02-19T14:45:04Z

Karin:

== Research Projects ==
There are several research and educational projects that use Elphel cameras. Some are already active, others just starting or only in planning stage. We believe that scientific research is the application area where the open nature of our products is the most beneficial. The shortage of the powerful and at the same time open and flexible hardware was that "itch" that led me to start Elphel.

This page is started to provide resources to those who already uses or plans to use Elphel cameras. This is wiki, so please feel free to add you project description/link below.--[[User:Andrey.filippov|Andrey.filippov]] 14:59, 29 April 2007 (CDT)

=== [[SCINI: Submersible Capable of under Ice Navigation and Imaging]] ===

=== [[EPFL: Auto focus System]] ===

=== [[Rose-Hulman Robotics Team]] ===

=== [[Public Primary School Rosa Boekdrukker ]] ===