x708v2

Forked from https://github.com/geekworm-com/x708v2

Hardware

• Raspberry Pi 4 8GB
• Geekworm x728-C1 case
• Geekworm x708 hat
• Geekworm x708 UPS

Software

bat.py

Monitor battery capacity and voltage. The Raspberrypi is turned off if the battery is less than 20% charged or the capacity is less than 3.0V.

bat_test.py can be used to test bat.py.

Use create-bat.service.sh to create the service to start the bat.py script after reboot.

sudo systemctl status x708-bat.service
● x708-bat.service - x708 Battery service
     Loaded: loaded (/lib/systemd/system/x708-bat.service; enabled; vendor preset: enabled)
     Active: active (running) since Sun 2022-10-02 20:02:18 CDT; 20h ago
   Main PID: 705 (python)
      Tasks: 1 (limit: 9046)
        CPU: 3.627s
     CGroup: /system.slice/x708-bat.service
             └─705 /usr/bin/python /home/pi/x708v2/raspberry-pi-os/bat.py

Oct 02 20:02:18 raspberrypi systemd[1]: Started x708 Battery service.

The bat.py log generated is saved in x708.log:

tail -f x708v2/raspberry-pi-os/x708.log
2022-10-09 16:39:24,660 - bat - INFO - Battery capacity:    19%
2022-10-09 16:39:29,668 - bat - INFO - Battery capacity:    19%
2022-10-09 16:39:34,676 - bat - INFO - Battery capacity:    19%
2022-10-09 16:39:39,685 - bat - INFO - Battery capacity:    19%
2022-10-09 16:39:44,695 - bat - INFO - Battery capacity:    19%
2022-10-09 16:39:49,700 - bat - INFO - Battery capacity:    19%
2022-10-09 16:39:54,708 - bat - INFO - Battery capacity:    19%
2022-10-09 16:39:59,717 - bat - INFO - Battery capacity:    19%
2022-10-09 16:40:04,724 - bat - INFO - Battery capacity:    19%
2022-10-09 16:40:09,732 - bat - INFO - Battery capacity:    19%
2022-10-09 16:40:14,740 - bat - INFO - Battery capacity:    19%

fan.py

Monitor the Raspberrypi temperature is less than minimum threashold or greater that maximum threashold. Notice tha x708 fan board is on by default, no chance to power off, and the script only control the fan speed.

Use create-fan.service.sh to create the service to start the fan.py script after reboot.

sudo systemctl status x708-fan.service
● x708-fan.service - x708 Fan service
     Loaded: loaded (/lib/systemd/system/x708-fan.service; enabled; vendor preset: enabled)
     Active: active (running) since Sun 2022-10-02 20:02:18 CDT; 20h ago
   Main PID: 706 (python)
      Tasks: 1 (limit: 9046)
        CPU: 3min 12.847s
     CGroup: /system.slice/x708-fan.service
             └─706 /usr/bin/python /home/pi/x708v2/raspberry-pi-os/fan.py

Oct 02 20:02:18 raspberrypi systemd[1]: Started x708 Fan service.

Case power button

pwr.sh is the script for power management via case button.

References

• Raspberry Pi 4
• x708
• x708 software
• x708 hardware