Adafruit/iLabs code for the Nordic nRF52 BLE SoC on Arduino

NMRA Digital Command Control (DCC) Library

LoraWAN-MAC-in-C library, adapted to run under the Arduino environment

Disassembled and commeted Acorn DOS for the Atom computer. Buildable with BeebASM.

Raspberry Pi Pico Arduino core, for all RP2040 boards

Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

Arduino Library Manager list

EX-CommandStation firmware from DCC-EX. Includes support for WiFi and a standalone WiThrottle server. A complete re-write of the original DCC++.

AT application for ESP32 ESP-IDF & ESP32C3 ESP-IDF & ESP8266 ESP8266_RTOS_SDK

Library for flashing Espressif SoCs from other MCUs.

Espressif SoC serial bootloader utility

Arduino driver for communicating with Espressif's esp-hosted-fg firmware

Hosted Solution (Linux/MCU) with ESP32 (Wi-Fi + BT + BLE)

Cost effective DIY DCC Decoder for model railroad locomotives

CircuitPython - a Python implementation for teaching coding with microcontrollers

Arduino networking library. Standard Arduino WiFi / BLE API over ESP8266 or ESP32 AT commands.

Port of https://bearssl.org BearSSL to ESP8266

Firmware for u-blox NINA W102 WiFi/BT module

USB-enabled bootloaders for the nRF52 BLE SoC chips

Website for pid.codes

A library for the Semtech SX150x family of i2c GPIO expanders.

Library to support Microchip MPC3x6x 16/24bit analog to digital converters.