A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

The missing bridge between Java and native C++

Android OBD diagnostics with any ELM327 adapter

Vector map library and writer - running on Android and Desktop.

SteVe - OCPP server implementation in Java. Your trusted open-source EV charging station management system since 2013. Used by CPOs, manufacturers and developers worldwide. Managed cloud →

Open source client and server library of Open Charge-Point Protocol (OCPP) defined by openchargealliance.org (OCA)

Wyzecam API reverse engineered to support Wyzecam alternatives applications.

Monitors an Outback MATE, Renogy Rover - MPPT Charge Controller and EPEver Tracer. Integrates with Grafana, PVOutput and more!

React-native OBD-II reader

An improved version of json-simple for Java 11+

Android app that reads parameters of a cars' engine control unit via OBD2

A controller app for an Arduino-powered 8x8 RGB-matrix.