Universal Low Voltage Module

#250 Universal Power Source (UPS) for only 2$. Is this possible? (Raspbery Pi, Arduino, ESP32)

Universal Low Voltage Module

Uninterruptable power sources or UPS for your Raspberry Pi, Arduino, or ESP microcontroller usually are quite expensive and also do not always work. When I found these small 2 dollar modules, I asked myself: Can we use them as a UPS? Or are they just junk and false promises? Time for a closer loo...

Tags: wifi,esp32,simple,guide,power supply,esp32 proj...