Version 4 of the diyBMS

Arduino sketch, which helps detecting the connections of the I2C interface and prints info available from the SMB (SmartBatteryModule) laptop battery pack.

Low power consumption for TTGO t-beam

Wireless ergo-split keyboard, based on nRF52840 module.

If you have a private powerwall of 18650 cells, this is the battery management system you need. The small PCB is equipped with the cheap Arduino Nano.

Battery management system for your FPV goggles.

A simple 18650 Lithium Ion battery tester based on a raspberry pi, with the hardware schematics and python program and GUI.

Library to calculate 18650 charge in Arduino environment

Reverse Protected 18650 Lithium-Ion Charging Unit

Python library and CLI tool for RC3563 battery impedance meter.

Evolv DNA 75 c themes and configs

Project to implement home made powerwall based on 6 battery packs each with 7S 9P configuration.

Infrared thermometer with a laser pointer built with an ESP8266 microcontroller and an MLX90614 sensor.

Arduino based spot welder controller for 18650 cells

A very simple board to measure the current from a 18650 battery cell for power profiling.

Pointless Button Hardware Version 2

Capacity and internal resistance meter for lithium(18650) and other type batteries

Constant current circuit to test 18650 batteries

OpenSCAD modell for an 18650 battery holder

Smart BMS Data Monitoring