Open-source IoT Platform - Device management, data collection, processing and visualization.

Java DSL for easy testing of REST services

MQTT Android

Quarkus quickstart code

Apache Kafka, Apache Flink and Confluent Platform examples and demos

Desktop Bitcoin Wallet focused on security and privacy. Free and open source.

Sky Map (formerly Google Sky Map, open sourced in 2012)

Eclipse Milo™ - an open source implementation of OPC UA (IEC 62541).

DevoxxGenie is a plugin for IntelliJ IDEA that uses local LLM's (Ollama, LMStudio, GPT4All, Jan and Llama.cpp) and Cloud based LLMs to help review, test, explain your project code.

Lightweight Java Docker client

WiFi Based Indoor Positioning System, A MVP android Application

This app allows you to read the current balance of cards manufactured by Intercard and Magnacarta via NFC.

BLE library using Java and Bluez

Bluetooth GATT service and characteristic parser

Hands-On Cloud-Native Applications with Java and Quarkus, published by Packt

Bluecove is a cross-platform Bluetooth library for Java. Converted to git from http://bluecove.org/

Materials about my talk around Eclipse Milo at EclipseCon Europe 2017

Proxy service for locally running Alexa skills

mqtt handler for traccar

Advanced QR Code reader is aplication for detection and decoding QR codes using devices with the Android Operating System.

Java APIs for managing BLE properties

An Android Project to implement Zoom and Pan functions for a tablet/phone camera with multi-touch