Hi there,
Is that possible to use the external trigger on B0331 for hardware sync along with cameras and something like IMU?
hi, @xuhao3e8
B0331 supports external trigger, which can be synchronized with hardware.
@yang Thanks for your reply! But how to do it? I can’t find in the documents.
hi, @xuhao3e8
You can view the camera’s outer trigger control name with the command below.
v4l2-ctl -l
Enable external triggering through the v4l2-ctl -c command.
v4l2-ctl -c trigger_mode=1
We recommend sending the trigger signal with a pulse of 1 ms. As shown below:
HI, thanks again. But what’s the pinout for external trigger? And what’s the voltage of the signal? 5V? 3.3V?
hi, @xuhao3e8
The external trigger pin is marked in the red box below. It’s on the camera board.
The signal voltage is 1.8v
So I need to connect every camera’s trigger pin together?
hi, @xuhao3e8
Yes, you need to connect the trigger pins of each camera together.