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.

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.

Battery management system for your FPV goggles.

Reverse Protected 18650 Lithium-Ion Charging Unit

Library to calculate 18650 charge in Arduino environment

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.

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

Evolv DNA 75 c themes and configs

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

Smart BMS Data Monitoring

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

Constant current circuit to test 18650 batteries

18650 li-ion cells and how to make a BMS for them.

Arduino based spot welder controller for 18650 cells

Simple low-power geiger counter with Arduino

AWS powered charger utilizing widely available off the shelf components.

A PCB design for Power and Motor control for small robots

A really basic project to trigger a Discord notification if a plants moisture sensor reads low values.

To test 18650 batteries with the help of WIFI based microcontroller

Yet Another Battery Cycler

bat_vision

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.

OpenSCAD modell for an 18650 battery holder

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.

Arduino UNO + A4988 + HM-10 Bluetooth + 42HB4004 Stepper + MIT App Inventor test version

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