RNode - Integrated, long-range data-radio that uses raw LoRa modulation in a variety of frequency bands. TinyGo - Go compiler for small devices, based on LLVM. TinyFPGA - New series of low-cost, open-source FPGA boards in a tiny form factor. Lacuna - Low-cost, simple and reliable global connections to sensors and mobile equipment. Tock - Secure embedded operating system for Cortex-M based microcontrollers. (Web) Sonoff-Tasmota - Alternative firmware for ESP8266 based devices like iTead Sonoff with web UI, rules and timers, OTA updates, custome device templates and sensors support. Senet - Cloud-based network connectivity platforms for the on demand build-out and management of the Internet of Things. TDengine - Open-source big data platform designed and optimized for the Internet of Things (IoT). NATS - High-Performance server for NATS, the cloud native messaging system. Liftbridge - Lightweight, fault-tolerant message streams. Arm Mbed OS - Free, open-source embedded operating system designed specifically for the "things" in the Internet of Things. Edge Impulse - Enables developers to create the next generation of intelligent device solutions with embedded Machine Learning. ESP8266 series chips - system-on-chip (SoC) which integrates a 32-bit Tensilica microcontroller, standard digital peripheral interfaces, antenna switches, RF balun & more. Packet Broker - Neutral and open Internet of Things packet broker allowing IoT operators to interoperate according to the open principles of the internet. (Client) (Go API) (API) Zigbee2mqtt - Allows you to use your Zigbee devices without the vendors bridge or gateway. Core Scenic Library - Client application library written directly on the Elixir/Erlang/OTP stack. Primarily aimed at fixed screen connected devices (IoT). EVE - Aims to do for the IoT edge what Android did for mobile by creating an open edge computing engine that enables the development, orchestration and security of cloud-native and legacy applications on distributed edge compute nodes. Adam - Reference implementation of an LF-Edge API-compliant Controller. rtlamr - rtl-sdr receiver for Itron ERT compatible smart meters operating in the 900MHz ISM band. Nerves Platform - Open-source platform and infrastructure you need to build, deploy, and securely manage your fleet of IoT devices at speed and scale. (Code) (HN) (Talk) Octopi - Research effort for creating an environment in which secure internet-of-things can be developed. Connected Home over IP - Working Group to develop and promote the adoption of a new, royalty-free connectivity standard to increase compatibility among smart home products, with security as a fundamental design tenet. (Web) EMQ X Broker - Scalable and Reliable Real-time MQTT Message Broker for IoT in 5G Era. EMQ X Kuiper - SQL based IoT rule engine running at resource constrained edge devices. (Code) IoTGoat - Deliberately insecure firmware created to educate software developers and security professionals with testing commonly found vulnerabilities in IoT devices. (Web) Zigbee-lua - Zigbee coordinator and tools for LuaJIT. FieldKit - Friendly, reliable, low-cost tools to monitor and advocate for the world around you. Ockam - End-to-end encrypted messaging and mutual authentication between cloud services and edge devices. (Web) Zabbix - Enterprise-Class Open Source Network Monitoring Solution. HStreamDB - Streaming database built for IoT data storage and real-time processing. (Code) Memfault - End-to-end observability for your connected devices. Mainflux - Modern, scalable, secure, open-source, and patent-free IoT cloud platform written in Go. (Code) (GitHub) Elevate IoT platform - Utilizing Rust and GraphQL to enable nimble and effective IoT solutions for real problems. Toit - IoT software platform for the ESP32. SpringQL - Open-source stream processor for IoT devices and in-vehicle computers. ESP-IoT-Solution - Espressif IoT Library. IoT Device Drivers, Documentations And Solutions.