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QuestDB is a high performance, open-source, time-series database
- time-series
- low-latency
- database
- sql
Android Bluetooth Low Energy (BLE) Fast Development Framework. It uses simple ways to filter, scan, connect, read ,write, notify, readRssi, setMTU, and multiConnection.
Apache Ignite
- distributed-sql-database
- iot
- osgi
- network-client
MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.
An Android Bluetooth Low Energy (BLE) Library with RxJava3 interface
- ble
- bluetooth-low-energy
- bluetooth-le
- android-bluetooth
A library that makes working with Bluetooth LE on Android a pleasure. Seriously.
100% open-source IoT Platform - Integrate your devices, add intelligence, build custom apps
- iot-platform
- iot
- energy
- building
Free database schema discovery and comprehension tool
- schemacrawler
- jdbc
- database-diagrams
- schema
🦎 A lightweight, streaming-native, multi-protocol gateway for AI, APIs, and real-time data. Route LLM requests across providers, govern MCP tools, and connect Kafka, MQTT, and HTTP through one high-performance engine with shared security and observability.
Unlock Google 11's Gemini "Rambler" Natural Voice Dictation & AI Writing Tools on ANY Android phone. No root required.
- ai-writing-tools
- android
- apk
- gboard
Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
- embedded-database
- java
- kotlin
- key-value
HiveMQ CE is a Java-based open source MQTT broker that fully supports MQTT 3.x and MQTT 5. It is the foundation of the HiveMQ Enterprise Connectivity and Messaging Platform
HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support
- mqtt
- mqtt-client
- mqtt-protocol
- reactive-streams
NoSQL embedded document store for Java
- nosql
- embedded-database
- documentdb
- android
This library allows for easy access to a Bluetooth LE device's AdRecord and RSSI value. It offers additional functionality for iBeacons.
The ultimate distributed MQTT broker. Handles 100M+ connections and 10M msg/sec with ease. Built on Kafka to provide industrial-grade persistence and eliminate data loss.
Program for rapidly developing computer vision applications
- computer-vision
- first-frc
- firstrobotics
- first-robotics-competition
SquirrelJME is a Java ME 8 Virtual Machine for embedded and Internet of Things devices. It has the ultimate goal of being 99.9% compatible with the Java ME standard.
- squirreljme
- java
- java-me
- iot
SmartGattLib is a Java library that simplifies the work with Bluetooth SMART devices
The official gradle plugin for the FIRST Robotics Competition
- gradlerio
- roborio
- frc
- first-robotics-competition
Bluetooth Honeypot
Qiscus provide everything you need to power up your app with chats. And it's now made simple.
- chat
- android-library
- android-sdk
- chatting
Android library monitoring device hardware sensors with RxJava