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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
The Waveshare mini UPS module provides a stable 5 V output and supports simultaneous charging and discharging. Via I2C, battery voltage, current, power, and charging status can be monitored in real time.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL24760 WSAL24760 – Mini Uninterruptible Power Supply module, Supports charging And Power output at the same time, 5V 2.5A Output]

== Technical overview ==
* Output voltage: 5 V; charging supply: 5 V; control interface: I2C.
* Designed as a compact UPS expansion board for mobile robots and industrial control equipment.
* Multiple battery protection circuits: overcharge/over-discharge, overcurrent, short-circuit, and reverse polarity protection, plus equalizing charge.
* Onboard 5 V regulator with up to 2.5 A continuous output current on the OUT pin.
* Warning LEDs indicate whether the battery is connected correctly and show the charging state.
* Dimensions: 61 × 38 mm.
* Shipped development resources include C, Python, and MicroPython demos for Raspberry Pi, Pico, STM32, and Arduino.
* The battery (350 mAh Li-ion cell) is not included.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
sudo raspi-config
sudo reboot
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz
tar zxvf bcm2835-1.71.tar.gz
cd bcm2835-1.71/
sudo ./configure && sudo make && sudo make check && sudo make install
git clone https://github.com/WiringPi/WiringPi
cd WiringPi
./build
gpio -v
sudo apt-get update
sudo apt-get install python-pip
sudo pip install RPi.GPIO
sudo pip install smbus
sudo apt-get update
sudo apt-get install python3-pip
sudo pip3 install RPi.GPIO
sudo pip3 install smbus
sudo apt install unzip -y
cd ~
</syntaxhighlight>

== Notes and version constraints ==
* When first connecting the battery, check whether the WARNING LED is on; if so, the battery is connected in reverse and charging is prohibited.
* Without pressing the BOOT button after initial connection, no power output may be available.
* For charging, use only the supplied power adapter; other chargers can cause unstable power with excessive ripple and damage the product.
* If the insulation pad on the battery’s positive electrode is removed or damaged, stop using the module to avoid short circuit or fire risk.
* Li-ion batteries have limited cycle life and degrade over time; replace them when max cycles are reached or after two years, whichever comes first.
* When removing the battery, do not pry the positive electrode with a screwdriver; pry the negative electrode instead to avoid short circuits.
* Before using any Arduino model other than Uno, verify that the pin connections are correct.
* After using the BCM2835 library, the Raspberry Pi must be rebooted, otherwise Python and other C libraries will not be available.

== Source and revision record ==
* [https://www.waveshare.com/wiki/UPS_Module_Mini UPS Module Mini - Waveshare Wiki]
* Source revision: 89778
* Captured: 2026-09-05T02:50:19+00:00
* SHA-256: <code>accbad90003de2f9712e521d99df978cf496ecda2c96a47ceef928929617098c</code>

WSAL24760 – UPS Module Mini/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex