10393 manual

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Revision as of 10:19, 29 April 2020 by Oleg (talk | contribs) (Available lengths for cables for connecting sensors in custom setups)
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In the package

Fig.1a 10393 interfaces
Fig.1b Boards connections (NC393-F-CS)
Range Power supply
36-72V (default) wall adapter (48V)
18-75V wall adapter (48V)
12-36V wall adapter, battery (12V)
3.3V direct, custom
  • CAT6 network cable
  • μUSB-to-USB cable
  • Recovery μSD card
  • If the camera is calibrated the calibration data will be on a separate storage media or on the internal SSD (likely /mnt/sda1)


See Fig.1:

GigE gigabit network
μSD micro SD card slot - boot or storage
console serial console port, use μUSB-to-USB cable
eSATA+USB 2-in-1. Connect USB or eSATA device. USB2.0 host
μUSB USB2.0 host
sync sync multiple cameras or other devices - input/output trigger signal through a 4-conductor 2.5mm audio plug with cable (example: digikey)

Power on

  • Plug in the power supply
  • Connect to LAN using the network cable


  • Boot time: ~30s
  • No extra drivers are required on the host PC to operate the camera system. Can be operated from any network device with a browser.
  • The default boot is from the on-board NAND flash. More information on available boot options and recovery boot.
  • For a production system with rare changes to the file system it is recommended to boot from NAND flash. Changes to the file system require running an extra sync command (overlay_sync) followed by a proper reboot.
  • For development, one can boot from the μSD recovery card and use it - saving changes does not require extra sync actions.
  • Camera's software includes gcc compiler - relatively small projects can be compiled on the camera.


IP Address
User root
Password pass
  • The default IP address is set in the /etc/elphel393/init_elphel393.py.
  • If present the internal SSD will be formatted into 2 partitions:
    • /dev/sda1 - ext4 (~64-100GB)
    • /dev/sda2 - raw partition (no file system) for fast recording

Command line access

  • ssh from PC's terminal:

user@hostname:~$ ssh root@

Serial console access

  • Use a microUSB-USB cable to connect console μUSB port (see Fig.1) to PC - the cable's end should be thin enough otherwise interferes with an inserted mmc (multi media card = μSD card).
  • In Linux the minicom program can be used

$ minicom -c on

Most likely the device will be /dev/ttyUSB0. Settings:

  • 115200 8N1, no for hardware/software flow control

Refer to the following article for more details on using minicom: Using minicom to connect to Elphel393 camera

Web user interface (camvc)

  • The page contains links to camvc user interface for each individual camera port.
  • camvc was ported from the 10353 camera series:
    • change parameters like image format, resolution, auto exposure, auto white balance and more. Alternative way to change parameters is described below.
    • pause compressor and search within buffered images
    • help tips available - see Fig.3 - select then mouse over a control element of interest
Fig.3 enable camvc help tips
Fig.4 camvc controls

Download live images


  • For a currently opened port (displayed in the window title and as "...sensor_port=0..." in the URL):
Fig.5 Acquire an image from the Camera Control Interface


port 0:
port 1:
port 2:
port 3:

command line

wget -O filename.jpeg
wget -O filename.jpeg
wget -O filename.jpeg
wget -O filename.jpeg



Multipart JPEG stream


  • Streams with either w or h >2040 might not get played - not supported by live555 often used by various media players. But there's a live555_patch.
  • turn on:

root@elphel393:~# /usr/bin/str

  • url:



gst-launch-1.0 -v playbin uri=rtsp:// uridecodebin0::source::latency=0


gst-launch-1.0 souphttpsrc is-live=true location= ! jpegdec ! xvimagesink 


vlc rtsp:// --network-caching=0


  • Recording is done by the camogm program
  • If recording to internal or external SSD, please, read about eSATA port switching
  • important: Event logger (GPS, IMU, IMG, EXT) recording is started/stopped separately. See instructions below.
  • For SATA devices camogm supports:
    • recording to a partition with a file system - up to 80MB/s
    • (default) faster recording to a partition without a file system (raw partition) avoiding OS calls - up to 220MB/s
  • To extract data from a raw partition use dd or these scripts to get the data and split it into images. Follow this link for details.
  • Can record to an mmc partiton or usb.
  • More info
  • If the prefix parameter, which is absolute path + prefix, for a channel is not set the file will be written somewhere to rootfs.
    • if prefix is empty then the absolute path must end with a slash.


Example 1: (provide a correct media mount point - /mnt/sda1/)

Follow this link for GUI description.

command line


  • /home/root, file prefix=test_, 1GB or 10min files whichever occurs first
    • setup and start (in one line):
echo "format=mov;status=/var/tmp/camogm.status;prefix=/home/root/test_;duration=600;length=1073741824;start" > /var/volatile/camogm_cmd
    • stop recording:
echo "stop" > /var/volatile/camogm_cmd

Event Logger (GPS, IMU, IMG & EXT)

The FPGA-based Event Logger uses local clock for time-stamping data from Image Acquisition, External (Trigger) Input, GPS and IMU.



  • Start:

  • Stop:

  • Help:

command line

  • start:

root@elphel393:~# cat /dev/imu > /path/filename.log

  • stop - CTRL-C or kill the process


Store/restore configuration (stores to /etc/elphel393/autocampars0.xml) (stores to /etc/elphel393/autocampars1.xml) (stores to /etc/elphel393/autocampars2.xml) (stores to /etc/elphel393/autocampars3.xml)

More information

  • All stored parameters are automatically restored at boot

Change parameters

Change: - update values - submit form

    • GET request - XML response

Change for multiple ports at once:*PAR1=MASK1&PAR2=VAL2&*PAR2=MASK2

# A port bit mask is set by adding a * to a parameter name, like *PAR1 - it is individual for each parameter.
# The mask is 4 bits - 1 bit per port, bit[0] = port 0,... bit[3] = port 3, where 1 - enabled, 0 - disabled:
#   0xf - the parameter's new value will be applied to all ports.
# More information

Note 1: if the parameter's value is specified in URL it will be applied. The call can have mixed specified and unspecified parameters.

Note 2: The new value is read on the next call.


  • set 10 fps and enable output trigger signal

More information


  • parsedit.php and autocampars.php were ported from 353 camera series. There are a few changes from the originals related to 4x sensor ports:
    • parameters are individual for each sensor port - writing parameters to multiple port at once is controlled with a (bit-)mask input box
    • if opened w/o sensor_port specified the page will show links to available ports
    • sensor_port=x, where x=0..3 - in the address string - for a single sensor camera it is normally 0

Image formats


  • color: YCbCr 4:2:0, 3x3 pixels
  • mono6: monochrome - color YCbCr 4:2:0 with zeroed out color components
  • mono : monochrome - color YCbCr 4:0:0 with omitted color components

Note: Is not the best for processing since a lot of information is lost at demosaicing

jp4 raw

Temperature monitor

10393 hwmon.jpeg

eSATA port switching

  • requres 10389
  • available connections:
    • camera <=> internal SSD (default)
    • camera <=> external drive (external drive will need a separate power source)
    • PC <=> internal SSD
  • More information

Proper shutdown

  • if not properly shutdown - μSD might get corrupted (run sync at least)

shutdown -hP now

Same effect:

Firmware/software update

More information

Firmware images


* overall minor changes
  * fixed photofinish demo
* added cron program
* multi cameras control interface
* multi camera system info reporting
* fixed rtc
* 20180419 - mt9f002: fixed changing window size
* mt9f002: added triggered mode
* mt9f002: added vertical and horizontal flips (mirror)
* added initial support for MT9F002 sensor: no triggered mode, no binning/decimation
* display serial number in http://camera-ip:port/meta
* decode jp4s on the index page (http://camera-ip)
* turn off auto wb button for all ports on the index page
* added photo finish demo
* fixed fps limit calcs for triggered mode
* raw.py & raw.php, see wiki.elphel.com
* added python3 and python3-opencv
* raw pixel data downloading through membridge
* added gcc,make
* fixed autoexposure
* + strace, ltrace, dmsetup
* added to drivers: register devs to sysfs - nodes then created by udev
* kernel updated to 4.9 (from 4.0)
* lots of drivers is updated to newer versions
* +dm-crypt and cryptsetup
* bugfix - incorrect displaying of TRIG_PERIOD at init
* Fixed autocampars to let 10393 work with the mux board - 10359, see wiki.elphel.com for
* Fixed autocampars for multiple sensors getting desynced at init
* Fixed Garmin GPS 18x USB driver
* fixed a page for taking snapshots - works in chrome and firefox for bigger images (>2MB)
* enabled "Access-Control-Expose-Headers: Content-Disposition" and CORS
* viewing decoded jp4 format in camvc
* fixed incorrect default setting of the master channel


Usage of SDK, which is Eclipse and project tree cloned from git.elphel.com, simplifies the development. At the same time lots of things can be done using Python, PHP, JavaScript or C/C++ (if compiled on hardware) and do not require SDK.

Other info

Change default ip address

Modify /etc/network/interfaces, sync the changes to the file system and reboot (or rerun init scripts).

For firmware 20180511 or older, follow these instructions to fix network configuration (= disable setting ip address via /etc/elphel393/init_elphel393.py).

Add a program or a shell command to autostart on boot

There's a way to do this using cron or init.d but it might run before the sensors are initialized by init_elphel393.py. The recommended way is the following:

  • nano or vi

ssh root@
root@elphel393:~# nano /etc/elphel393/init_elphel393.py
edit - save
example: to launch the rtsp streamer - add shout("/usr/bin/str") to the end of the file. shout() function is just a wrapper for subprocess.call(cmd,shell=True)


#boot from NAND flash?
root@elphel393:~# overlay_sync 1 
root@elphel393:~# shutdown -hP now
#boot from card?
root@elphel393:~# sync
root@elphel393:~# reboot -f

Set up histogram window and autoexposure parameters

Read article

Tools for calibrated systems

  • Install ImageJ plugins
    • decode jp4 raw format
    • aberrations correction
    • distortion correction (pixel mapping)
    • rectification and projection
    • JP46 Reader camera - decode JP4/JP46
    • Eyesis correction - post-process JP4s using calibration data

Switch between ERS and GRR modes in MT9P006

External/internal synchronization & triggering and FPS control for single/multi-camera systems

SSD/MMC/USB formatting

Boot modes

Pointers monitor

  • Displays sensor, compressor and buffer states per 10393 port:

Powering from batteries (12V or 48V)

12V and 48V power options

Accessing raw pixel values

Working with raw pixel data (how to capture raw images)

Photo finish (linescan mode)

Photo Finish (works for JP4 image format)

Controlling multiple cameras from single GUI

Developers version's half enclosure

10393 half enclosure 1.jpeg
10393 half enclosure 2.jpeg

Available lengths for cables for connecting sensors in custom setups

  • FPC cables - click for available lengths.
  • The cables are asymmetrical - for correct connecting a sensor to a system board see the figure below. As a rule of thumb, the cable's back side (no contacts) will be on the same side as the connector's cover.
Connecting sensors to the system board

Known problems

  • [SOLVED] Vertical artifacts in jpegs. Images are ok at 100% quality. Fixed, testing.
  • [SOLVED] - multipart jpeg displays corrupted frames from time to time. Reason: network bandwidth?
  • [SOLVED] Sometimes on power-on (NAND flash boot) cannot mount the card's rootfs partition. Kernel Panics. Power off/on. Soft "reboot -f" works ok.

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2)

More info

  • [SOLVED] Changing exposure/quality/gains - can corrupt images - needs testing.
  • [SOLVED] After rewriting rootfs to μSD card - some of the cards get a corrupted partition - re-partitioning (reformatting?) solves the problem.

On the camera the rootfs is mounted as RW and some of the files are changed (also links created) -
most of the changes are now moved to tmpfs but something might have been missed.


  • [SOLVED] In case rootfs is on flash, it might make sense (or maybe not as the history is updated only once on session exit) to disable bash sessions command history - disable bash history
  • [SOLVED] When using overlays, deleting, existing in the lower layer, dirs can cause errors (hopefully it gets fixed someday), example:
    • /mnt/sda1 exists in lower layer: /tmp/rootfs.ro/tmp
    • upper layer is mounted to "/"

# rmdir /mnt/sda1
# mkdir /mnt/sda1
mkdir: cannot create directory '/mnt/sda1': Operation not supported