Main Content

3.7v LiPo Battery Charger Monitor

This battery charger monitor uses an OLED display & Blynk to show you its charge current, bus voltage, load voltage & elapsed time.

Story
This is a 3.7V DC LiPo Charger that uses the INA219 DC voltage sensor and a ESP8266-01 to give you info about its charging current, voltage, and time. It uses Blynk & a 1.3” OLED I2C display to provide you the info.”

Link to article