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<big>Although this installation tutorial is still available, but we strongly recommend that you use [[X729-script]] new tutorial, and we no longer maintain this page.</big> ==Setup script==The following test is base on * [https://downloads.raspberrypi.org/raspios_arm64/images/raspios_arm64-2023-05-03/2023-05-03-raspios-bullseye-arm64.img.xz 2023-05-03-raspios-bullseye-arm64.img.xz]* [https://www.raspberrypi.com/software/operating-systems/ 2022-09-22-raspios-bullseye-armhf.img.xz]* [https://www.raspberrypi.com/software/operating-systems/ 2022-09-22-raspios-buster-armhf.img.xz] PS: To buster version, the default user name is 'pi, but bullseye version, you need to manually create a new user. In our example script, the new user name we created is 'pi'. If you create your own user name, you need to modify the corresponding user name directory in the script. For Example: You may need to change '/home/pi/' => '/home/XX/', 'XX' is user name you created.

==='''1. Enable I2C funcion on Raspbian:''' reter to [[How to enable I2C]]===

Please reter to [[How to enable I2C]] ==='''2. Check & review I2C portaddress'''===

sudo apt-get -y upgrade sudo apt-get -y install i2c-tools python3-smbus python-smbus sudo apt-get -y install pigpio python-pigpio python3-pigpiorpi.gpio

#3c - address of oled display，This value only exists when the oled is inserted，check if the OLED displayis inserted in the correct direction if you don't found the above i2c port

==='''3. Setting up the power management script'''===

#Reboot the Raspberry Pior long press on-board button switch to turn off sudo rebootnow

==='''4. Setting up the PWM cooling fan'''===

==='''5. Set and Read the RTC time #If you need to set the system time for any reason you can use the following command : date -s "5 MAR 2019 13:00:00"Test PLD/PLSD/buzzer function'''===

6. How to reading battery voltage and percentage, this is Run the script test the sample code, you can modify it by your request.PLD function sudo python /home/pi/x728batpython3 pld.py[[File:X728-batX729-28.jpgpng|none]]

User Guide: https://github5.com/geekworm-com/x728 to know more details;2 Test Auto shutdown when AC power loss or power adapter failure

But we hope that Run the script can and then remove your power adapter pi@raspberrypi:~/x729 $ sudo python3 plsd.py Safe shutdown will be executed automatically when the Raspberry Pi board boots, we can use crontab system command to achieve itimplemented in 5 seconds. Refer to [[How to add crontab job]] or refer to the following:

Add a line at Run the end of script and unplug your power adapter from the file that reads like thisUPS. pi@raspberrypi:~/x729 $ sudo python3 buzzer.py Once power adapter is removed then the buzzer will generate a beep sound continuously.

7==='''6. Set and Read the RTC time'''=== 6. Power off 1 Run the following command on Raspbian from softwareyour Raspberry PI to begin editing the /boot/config.txt file. x728offsudo nano /boot/config.txt* x728off is safe shutdown command* press onadd one of the following lines to the bottom of the file, dtoverlay=i2c-board blue button 1rtc,ds1307 [[File:X729-5.png|none]] Save and exit. In nano, you do that by hitting CTRL + X, answering Y and hitting Enter when prompted. 6.2 seconds Run the commands to rebootdisable the "fake hwclock" which interferes with the 'real' hwclock pi@raspberrypi ~ $ sudo apt-get -y remove fake-hwclock pi@raspberrypi ~ $ sudo update-rc.d -f fake-hwclock remove pi@raspberrypi ~ $ sudo systemctl disable fake-hwclock* press on[[File:X729-board blue button 6.png|none]] 6.3 seconds Run the command and comment out these five lines: sudo nano /lib/udev/hwclock-set[[File:X729-7.png|none]] 6.4 Reboot the Raspberry Pi pi@raspberrypi ~ $ sudo reboot 6.5 Run the command to safe shutdown,verify the time is correct. Plug in Ethernet or WiFi to let the Pi sync the right time from the Internet pi@raspberrypi ~ $ date 6.6 Run the command to write the time* press on pi@raspberrypi ~ $ sudo hwclock -board blue button w 6.7Run the command to read the time pi@raspberrypi ~ $ sudo hwclock -8 seconds r Once the time is set, make sure the batteries are inserted so that the time is saved. You only have to force set the time once. That's it! Next time you boot the time will automatically be synced from the [[X729]]. ===7. How to enable automatic shutdownwhen low voltage===7.1 Run the command to read battery voltage and percentage pi@raspberrypi:~/x729 $ sudo python3 bat.py  7.2 Change the battery low voltage to implement safe shutdown. default is less than 3.00Vdc. pi@raspberrypi ~ $ sudo nano bat.py [[File:X729-3.png|none]]Note: the voltage range must be 2.5~4.1vdc.

[[File7.3 Optional - if you want to run Python Script automatically on Bootup then run the command pi@raspberrypi:X728-pld~/x729 $ sudo crontab -2.jpg]]e

==uninstall x728 script==uninsatll x728 shell script, run 7.4 Add a line at the end of the following commandfile that reads like this: sudo @reboot python3 /home/pi/x729/bat./uninstall_x728py[[File:X729-4.shpng|none]]

For the x728 old shell scriptSave and exit. In nano, you also run this command to remove itdo that by hitting CTRL + X, then re-install the x728 scriptanswering Y and hitting Enter when prompted.

==FAQ=8. How to enable OLED display===Q: We want Refer to [[How to automatically shut down when the battery voltage is lower than a certain specified value, is it possible?enable OLED display]]

A: Please ==Uninstall cript==uninsatll x729 shell script, run the followng following command to achieve this function.(Note: 3V is default shut down voltage value ) python3 /home/pi/x728sudo ./x728v2-asduninstall_x729.py &sh

X728==Other resource==X729-Chip-Specifications：

 Return to [[X728X729]] or [[X729-hardware]]