78 lines
1.9 KiB
Markdown
78 lines
1.9 KiB
Markdown
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# SC235HAI Quick Checklist
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One-page, copyable checklist for field use.
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Wiring
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- Connect camera CSI ribbon to carrier board.
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- Connect SDA/SCL (I2C VC) to camera sensor.
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- Connect camera GND to Pi GND.
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- Ensure control GPIOs (e.g. GPIO4, GPIO40) are connected as required.
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- Apply power only after wiring verified.
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System prep (on Pi)
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```bash
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apt update
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apt install -y git build-essential raspberrypi-kernel-headers device-tree-compiler v4l-utils libcamera-apps ffmpeg curl ca-certificates
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```
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Boot & config
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- Edit `/boot/firmware/config.txt` and ensure:
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```ini
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camera_auto_detect=0
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dtparam=i2c_vc=on
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gpio=4=op,dh
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gpio=40=op,dh
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dtoverlay=sc235hai
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```
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- Reboot: `reboot`
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Driver: obtain & build
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- Copy or clone driver to `/root/sc235hai_driver`.
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```bash
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cd /root/sc235hai_driver
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make
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dtc -@ -I dts -O dtb -o sc235hai.dtbo sc235hai.dts
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```
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Install driver & overlay
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```bash
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cp sc235hai.ko /lib/modules/$(uname -r)/extra/
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cp sc235hai.dtbo /boot/firmware/overlays/
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depmod -a
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modprobe sc235hai
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```
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Autoload (optional)
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- Add module to `/etc/modules-load.d/sc235hai.conf`:
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```bash
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echo sc235hai > /etc/modules-load.d/sc235hai.conf
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reboot
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```
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Verify
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```bash
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lsmod | grep -i sc235hai
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dmesg | grep -i sc235
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media-ctl -p
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ls /dev/video* /dev/media*
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libcamera-hello --list-cameras
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```
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MediaMTX (stream)
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- Copy `mediamtx` and `mediamtx.yml` to `/root/` if missing.
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```bash
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pkill -f mediamtx 2>/dev/null || true
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setsid /root/mediamtx /root/mediamtx.yml >/var/log/mediamtx.log 2>&1 </dev/null &
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tail -n 50 /var/log/mediamtx.log
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```
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- RTSP URL: `rtsp://<board-ip>:8554/cam`
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Quick troubleshooting
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- No module: `find /lib/modules/$(uname -r) -name 'sc235hai.ko*'`
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- Overlay missing: check `/boot/firmware/overlays/sc235hai.dtbo`
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- No camera nodes: re-check wiring and `dmesg` for errors
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- No stream: check `/var/log/mediamtx.log` and libcamera
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Contact
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- Keep a copy of `dmesg` and `/var/log/mediamtx.log` when asking for help.
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