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Camera

CSI Interface Definition​

The ZERO 3 has a 22 PIN CSI interface defined as follows.

zero3w csi1

zero3w csi

Currently supported cameras are:

  • Raspberry Pi Camera V1.3 (OV5647)
  • Raspberry Pi Camera V2 (IMX219)
  • Radxa Camera 8M (IMX219)

Usage​

System Configuration​

  • Enable camera overlay, select the corresponding overlay
  • Here we are using Raspberry Pi Camera V1.3, if you are using other cameras, please select the corresponding overlay for the camera model
sudo rsetup

zero3w camera1

Confirm and reboot to take effect.

Hardware Connections​

Hardware connections are as follows:

tip

Please pay attention to the direction of the interface of the camera cable!

zero3w camera2

Image Preview​

Cheese is recommended for live camera previews.

sudo apt update
sudo apt install cheese

Once on the desktop, open a terminal and run

sudo cheese

You can start implementing the preview camera:

zero3w camera3

You can also take a picture using the command:

gst-launch-1.0 v4l2src device=/dev/video0 io-mode=4 ! videoconvert ! video/x-raw,format=NV12,width=1920,height=1080 ! jpegenc ! multifilesink location=/home/radxa/test.jpg

zero3w camera4

Execute the command and press Ctrl+c to take a picture, the path to the photo is /home/radxa/test.jpg

Troubleshooting​

  • Capture prompt cannot open /dev/video0 device
radxa@radxa-zero3:~$ gst-launch-1.0 v4l2src device=/dev/video0 io-mode=4 ! videoconvert ! video/x-raw,format=NV12,width=1920,height=1080 ! jpegenc ! multifilesink location=/home/radxa/test.jpg
Setting pipeline to PAUSED ...
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Cannot identify device '/dev/video0'.
Additional debug info:
../sys/v4l2/v4l2_calls.c(608): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
system error: No such file or directory
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

This problem may be caused by overlay is not successfully enabled, re-execute rsetup operation, check /boot/extlinux/extlinux.conf file to see if overlay has been added, if it has been added successfully, there will be the following:

...
fdtoverlays  /boot/dtbo/radxa-zero3-rpi-camera-v1.3.dtbo
...