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.

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

Battery management system for your FPV goggles.

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.

Reverse Protected 18650 Lithium-Ion Charging Unit

bat_vision

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

Simple low-power geiger counter with Arduino

Evolv DNA 75 c themes and configs

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

The script summarizes the battery online shop nkon.nl in a readable table format. The table is sorted for price per capacity in descending order.

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

Some small circuit for a DIY solar system.

Plant watering system based on Arduino Nano, real time clock (RTC DS3231) and 12V water pump.

TTGO T-Controller ESP Arduino Framework code, using PlatformIO.

Clockworkpi's Gameshell (GameSH>) case mod for bigger battery