I tried to use external trigger according to the instructions from this page
https://docs.arducam.com/Raspberry-Pi-Camera/Global-Shutter-Camera/external-trigger/
for the array of cameras Arducam 2.3MP*2 AR0234. These global shutter cameras are connected to Camarray HAT https://www.arducam.com/product/arducam-2-3mp2-ar0234-color-global-shutter-synchronized-stereo-camera-bundle-kit-for-raspberry-pi/
Pins XVS in both cameras is connected to GPIO pins through converter of logic levels so they are triggered with 1.8V. GND pin is also connected to GND in raspberry pi.
I used Python program CaptureExternalTrigger.py. The problem is that photos are taken only from one camera. From the second camera I get only the picture of vertical stripes. I tried switching cameras, gpio pins - nothing helps.
Here is the output from CaptureExternalTrigger.py:
v4l2-ctl -d /dev/v4l-subdev0 -c trigger_mode=0
/home/kzd/picamera2_examples/CaptureExternalTrigger.py:55: RuntimeWarning: This channel is already in use, continuing anyway. Use GPIO.setwarnings(False) to disable warnings.
GPIO.setup(self.ledPin, GPIO.OUT)
/home/kzd/picamera2_examples/CaptureExternalTrigger.py:56: RuntimeWarning: This channel is already in use, continuing anyway. Use GPIO.setwarnings(False) to disable warnings.
GPIO.setup(self.ledPin2, GPIO.OUT)
[0:03:08.908370005] [825] INFO Camera camera_manager.cpp:284 libcamera v0.1.0+147-057299d0-dirty (2024-01-24T08:51:15+00:00)
[0:03:08.954283937] [827] WARN CameraSensorProperties camera_sensor_properties.cpp:265 No static properties available for ‘arducam-pivariety’
[0:03:08.954348178] [827] WARN CameraSensorProperties camera_sensor_properties.cpp:267 Please consider updating the camera sensor properties database
[0:03:08.966847203] [827] ERROR IPAProxy ipa_proxy.cpp:149 Configuration file ‘arducam-pivariety.json’ not found for IPA module ‘rpi/vc4’
[0:03:09.134476530] [827] WARN RPiSdn sdn.cpp:39 Using legacy SDN tuning - please consider moving SDN inside rpi.denoise
[0:03:09.135995624] [827] INFO RPI vc4.cpp:452 Registered camera /base/soc/i2c0mux/i2c@1/arducam_pivariety@c to Unicam device /dev/media2 and ISP device /dev/media0
[0:03:09.136135402] [827] INFO RPI pipeline_base.cpp:1167 Using configuration file ‘/usr/share/libcamera/pipeline/rpi/vc4/rpi_apps.yaml’
[0:03:09.138615107] [825] INFO Camera camera_manager.cpp:284 libcamera v0.1.0+147-057299d0-dirty (2024-01-24T08:51:15+00:00)
[0:03:09.183281537] [829] WARN CameraSensorProperties camera_sensor_properties.cpp:265 No static properties available for ‘arducam-pivariety’
[0:03:09.183346371] [829] WARN CameraSensorProperties camera_sensor_properties.cpp:267 Please consider updating the camera sensor properties database
[0:03:09.191875079] [829] ERROR IPAProxy ipa_proxy.cpp:149 Configuration file ‘arducam-pivariety.json’ not found for IPA module ‘rpi/vc4’
[0:03:09.493411511] [829] WARN RPiSdn sdn.cpp:39 Using legacy SDN tuning - please consider moving SDN inside rpi.denoise
[0:03:09.496594142] [829] INFO RPI vc4.cpp:452 Registered camera /base/soc/i2c0mux/i2c@1/arducam_pivariety@c to Unicam device /dev/media2 and ISP device /dev/media0
[0:03:09.496733661] [829] INFO RPI pipeline_base.cpp:1167 Using configuration file ‘/usr/share/libcamera/pipeline/rpi/vc4/rpi_apps.yaml’
[0:03:09.512188595] [825] INFO Camera camera.cpp:1183 configuring streams: (0) 3840x1200-BGR888 (1) 3840x1200-SGRBG10_CSI2P
[0:03:09.620882243] [829] INFO RPI vc4.cpp:616 Sensor: /base/soc/i2c0mux/i2c@1/arducam_pivariety@c - Selected sensor format: 3840x1200-SGRBG10_1X10 - Selected unicam format: 3840x1200-pgAA
Start Trigger! Press CTRL+C to exit
v4l2-ctl -d /dev/v4l-subdev0 -c trigger_mode=1
enter your trig num: Add image to queue.
Add image to queue.
Add image to queue.
Add image to queue.
Add image to queue.
Add image to queue.
Add image to queue.
Add image to queue.
Test jpg with command
libcamera-still -t 5000 -n -o test.jpg
is ok so the cameras are fine and the array as well. It seems the problem is with software or firmware.