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Revision as of 14:23, 23 December 2020 by Yoyojacky (talk | contribs) (Descriptions)
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UPS Plus


UPS Plus is a new generation of UPS power management module.
It is an improved version of the original UPS prototype.
It has been fixed the bug that UPS could not charge and automatically power off during work time.
It can not only perform good battery power management, but also provide stable voltage output and RTC functions.
At the same time,it support for FCP, AFC, SFCP fast charge protocol, support BC1.2 charging protocol, support battery terminal current/voltage monitoring and support two-way monitoring of charge and discharge.
It can provide programmable PVD function.
Power Voltage Detector (PVD) can be used to detect if power voltage is below or above selected voltage Power Voltage.
This function will protect your batteries from damage caused by excessive discharge.
It can provide Adjustable data sampling Rate.
This function allows you to adjust the data sampling rate so that you can get more detailed battery information and also it will consume some power.
The data sampling information can communicate with the upper computer device through the I2C protocol.
UPS Plus supports the OTA firmware upgrade function.
Once there is a new firmware update, it is very convenient for you to upgrade firmware for UPS Plus.
The firmware upgrade can be completed only by connecting to the Internet,and execute a python script.
Support battery temperature monitoring and power-down memory function.
UPS Plus can be set to automatically start the Raspberry Pi after the external power comes on.
The programmable shutdown and forced restart function will provide you with a remote power-off restart management method.
That means you don’t need to go Unplug the power cable or press the power button to cut off the power again.
You can set the program to disconnect the power supply after a few seconds after the Raspberry Pi is shut down properly.
And you can also reconnect the power supply after a forced power failure to achieve a remote power-off and restart operation.
Once it was setting up, you don't need to press power button to boot up your device which is very suitable for smart home application scenarios.



Register Mapping


PCB Drawing

Function Area Display

How To Assemble

How To Use

How To Update UPS Firmware via OTA

How To Enable Auto-Shutdown Protection Function

How To Collect Data

How To Setup RTC

How To Estimate Battery Power

How To Adjust The Sampling Period

How To Monitor Battery Temperature

How To Enable UPS function

How To Configure Programmable Shutdown/Force Restart


  • Q: Why does the battery light go off sometime and lights up in a while?
    • A: This is because the power chip performs battery re-sampling, and the purpose is that the data of inferior batteries is inaccurate during the sampling process.
  • Q: Why is the power cut off every once in a while?
    • A: Please check the battery charging current, the data discharge direction or the charging direction. If the load is too large, the charging may not be enough, which will cause this problem.
  • Q: What kind of wall charger should I use?
    • A: If the load is normal, it is recommended to use an ordinary 5V@2A charging head. If you need to carry a slightly higher load, it is recommended to use a fast charging source. We support FCP, AFC, SFCP protocols Fast charging source.
  • Q: Can I directly input 9V and 12V to the USB port?
    • A: No, if you must do this, you must remove the DP, DM and other related detection pins, and ensure that the power supply is stable.
  • Q: I heard howling, why is this?
    • A: Because of the no-load protection mechanism, the howling will disappear after the load is installed.


  • UPS Plus, GeeekPi UPS V5, UPS for Raspberry Pi