18650

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.

Wireless ergo-split keyboard, based on nRF52840 module.

Low power consumption for TTGO t-beam

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.

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

Battery management system for your FPV goggles.

👽 An Among Us-themed infrared shooting gallery game built with ESP32 devices and a Node.js scoreboard

Library to calculate 18650 charge in Arduino environment

Python library and CLI tool for RC3563 battery impedance meter.

Reverse Protected 18650 Lithium-Ion Charging Unit

Arduino based spot welder controller for 18650 cells

Interactive 3D battery pack calculator and visualizer with STL export for 3D printing. Calculate optimal 18650/21700 configurations and generate printable holders.

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

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

This repository accompanies a large project centered around the small ESP32-H2 Super Mini development board. It consists of several sub-projects that deal with the topics SHT41 sensor, MAX17043 battery measuring device, LoRa module, e-paper display and onboard LEDs. The end result is a LoRa transmitter that can transmit data over long distances.

Evolv DNA 75 c themes and configs

Turn a battery voltage into a realistic charge percentage on any microcontroller: real LiPo, Li-ion 18650, LiFePO4, NiMH & alkaline discharge curves. Tiny C99 library with no_std Rust bindings, PlatformIO, Arduino, ESP-IDF & Zephyr ready.

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

Hardware for SpotWelderController.