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<hr/> The following test is base on [https://www.raspberrypi.com/software/operating-systems/ 2022-01-28-raspios-bullseye-armhf.zip] Python version: V2.7is 3;
1. Enable I2C funcion on Raspbian:
sudo apt-get update
sudo apt-get upgrade
sudo apt-get -y install i2c-tools python3-smbus python-smbus 2.1 Once you have logged into your Raspberry Pi from the command line, run the command to see all the connected devices sudo i2cdetect -y 1 [[File:X728x-i2c.png]] #36 - the address of the battery fuel gauging chip #68 -toolsthe address of the RTC chip #Different x728 versions may have different values
3. Download x728 setup scripts:
cd ~
git clone https://github.com/geekworm-com/x728
4. Install script&reboot:
Firstly please select your x728 version, please use x728-v2.1.sh for x728 v2.1 and v2.2 and '''v2.3'''
sudo bash x728-v2.1.sh
#New add buzzer support
x728bat.py # Reading battery voltage
x728pld.py # Testing AC power off/loss or power adapter failure detection, added buzzer function on v2.1
x728plsd.py # Testing Auto shutdown when AC power loss or power adapter failure
5. Set and Read the RTC time
6. How to reading battery voltage and percentage, this is the sample code, you can modify it by your request.
sudo pyton python /home/pi/x728bat.py
[[File:X728-bat-2.jpg]]
User Guide: https://github.com/geekworm-com/x728 to know more details;
But we hope that the script can be executed automatically when the Raspberry Pi board boots, we can use crontab system command to achieve it. please Refer to [[How to add crontab job]] or refer to the following: pi@raspberrypi ~ $ `sudo crontab -e`[[File:Crontab-step1.png]]
Choose "`1`" then press Enter
Add a line at the end of the file that reads like this:
@reboot python /home/pi/x728bat.py
[[File:X728-crontab.png|800px]]
7. Power off command on Raspbian from software
* press on-board blue button 3 seconds to safe shutdown,
* press on-board blue button 7-8 seconds to force shutdown.
8. Testing AC power off/loss or power adapter failure detection (need to short the 'PLD' pin on v1.x), also test the buzzer function on v2.1
cd ~
sudo python3 x728pld.py
or
sudo python x728pld.py
[[File:X728-pld-2.jpg]]
PS:
1. X728pld.py is '''ONLY''' a sample code file, you can modify it according to your own needs
2. The buzzer is controlled by software. It is found that some customers do not know how to turn off the buzzer's warning sound. Here is a reminder.
[[File:X728-buzzer.png|800px]]
9. '''Testing Auto shutdown when AC power loss''' or power adapter failure
cd ~
sudo python3 x728pld.py
or
sudo python x728plsd.py
==uninstall x728 script==
uninsatll x728 shell script, run the following command:
References:
*[https://www.instructables.com/Raspberry-Pi-Tutorial-How-to-Use-a-Buzzer/ Raspberry Pi Tutorial: How to Use a Buzzer]
*[https://github.com/arbowl/cyberdeck-battery-indicator/ Battery Indicator Script Share by Drew]
Return to [[X728]]