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sudo reboot
Or force press the button of x708 for 8 seconds to shut down and then restart
4.4 Test software shutdown from command line after restart.
x708off
4.5 Press on-board button or external switch to test hardware safe shutdown Press the switch for about 3 seconds until the power indicator flashes to execute hardware safe shutdown.'''[NOTE]''':* After shutdown, press the onboard switch or external switch to turn on.* If your test fails, it means that your installation failed, or the software environment is incorrect, please check whether you have installed the corresponding software package. 5. How to reading battery voltage and percentage, this is the sample code, you can modify it by your request. cd ~/x708v2/raspberry-pi-os/ sudo python3 bat.py <pre>******************Voltage: 4.18VBattery: 100%Battery FULL******************Voltage: 4.17VBattery: 100%Battery FULL******************Voltage: 4.18VBattery: 100%Battery FULL******************Voltage: 4.17VBattery: 100%Battery FULL******************</pre> * In generally, you need to let the X708 fully charge and discharge several times before you can get more accurate voltage and power values.* This script can also perform safe shutdown at specified voltage threshold (default voltage threshold is 3.00vdc), you can also modify this voltage threshold, '''but the voltage threshold range must be 2. Install necessary software 5~4.1vdc'''. 6. Testing AC power off/loss or power adapter failure detection (PLD function) cd ~/x708v2/raspberry-pi-os/ sudo python3 pld.py <pre> 1.Make sure your power adapter is connected 2.Disconnect and then connect the power adapter again to test 3.When power adapter disconnected, you will see: AC Power Loss or Power Adapter Failure 4.When power adapter reconnected, you will see: AC Power OK, Power Adapter OK Testing Started---AC Power Loss OR Power Adapter Failure--- ---AC Power OK,Power Adapter OK--- ---AC Power Loss OR Power Adapter Failure--- ---AC Power OK,Power Adapter OK---</pre> 7. Test Auto shutdown when AC power loss or power adapter failure cd ~/x708v2/raspberry-pi-os/ sudo python3 plsd.py Testing Started---AC Power Loss OR Power Adapter Failure--- Shutdown in 5 seconds Connection closing...Socket close.In fact, you can refer to this example code to implement your own shutdown logic. . . This requires you to have some python programming foundation. 8. Advanced use of speed regulation for non-pwm fans The X708 hardware supports two fan speeds: low speed (default) and high speed; if you want the fan to run at high speed, you need to run the fan.py script. cd ~/x708v2/raspberry-pi-os/ python3 fan.py fan.py provides a method that can switch the fan speed. It should be noted that the x708 does not use a PWM fan, it only supports two speed modes (low speed and high speed). In the fan.py file, the speed mode of the fan is controlled by reading the temperature of the CPU in real time. You need to read the fan.py code to understand more logic. You can control the fan running at high speed or low speed via modify the CPU temperature threshold in fan.py script file (yellow highlight line)<syntaxhighlight lang="python " line highlight="9-11">#!/usr/bin/env python3 import subprocessimport time from gpiozero import OutputDevice ON_THRESHOLD = 55 # (degrees Celsius) Fan running at high speed at this temperature.OFF_THRESHOLD = 50 # (degress Celsius) Fan running at low speed at this temperature.SLEEP_INTERVAL = 5 # (seconds) How often we check the core temperature.GPIO_PIN = 16 # Which GPIO pin you're using to control the fan. DON'T change it! def get_temp(): """Get the core temperature. Run a shell script to get the core temp and i2c tool libraryparse the output.</syntaxhighlight> '''[PS]''' * If you can't understand, please ignore this step. Because the X708 fan will run at low speed by default, this cooling capacity is sufficient.* If you have full control over the runing of the fan, you need to run 'python3 /home/pi/x708v2/raspberry-pi-os/fan.py', and you need to create a crontab job also, and then put this run command ('@reboot python3 /home/XX/x708v2/raspberry-pi-os/fan.py 'XX' is your username, you need replace it with your username.')into the job, so that the command will run automatically when the device restarts. refer to [[X708-Software#FAQ]] 9. Uninstall cd ~/x708v2/raspberry-pi-os/ sudo aptbash uninstall.sh 10. About '''AUTO ON''' After shutting down, you need to wait about 60 seconds until the battery capacity indicator of X708 goes out, otherwise the AUTO ON function may be invalid. Because the charge remaining in the power adapter may affect the AUTO ON function. == For Ubuntu==Base ubuntu-mate-20.04.1-get install pythondesktop-smbus armhf+raspi.img 1. Enable I2C 2. update & upgrade sudo apt update sudo apt upgrade 3. Install necessary software sudo aptinstall git python python3 python3-get install i2csmbus python3-rpi.gpio python-rpi.gpio wiringpi -tools y
git clone https://github.com/geekworm-com/x708.git
cd x708
chmod +x x708*.sh sudo bash install-ubuntu.sh sudo reboot
5. How to reading battery voltage and percentage, this is the sample code, you can modify it by your request.
sudo python3 x708bat.py
8. Testing AC power off/loss or power adapter failure detection (need to shor the 'PLD' pin)Uninstall sudo python x708pld.py/uninstall-ubuntu.sh
==FAQ==
Q1: How to make a script run automatically after boot?
Return to [[X708]]
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