A small Arduino library for GSM modules, that just works
LGPL-3.0 License
Flexible, Arduino Mega/Due/ESP8266/ESP32/STM32 based SmartHome controller with DMX-512 in/out, 1...
Send data from Hoymiles PV plant to Home Assistant without cloud
esp8266 wifi-serial bridge, outbound TCP, and arduino/AVR/LPC/NXP programmer
Client SDK to connect with ThingsBoard IoT Platform from IoT devices (Arduino, Espressif, etc.)
Open source firmware (Tasmota/Esphome replacement) for BK7231T, BK7231N, BL2028N, T34, XR809, W80...
Firmware for the ESPixelStick
Live Objects SDK for Python & MicroPython
A Modbus RTU (RS-485) to MQTT Gateway (based on ESP32)
OBD2 to MQTT for Home Assistant
A Simple ESP12 & AD9851 based RF Jammer which can be controlled using MQTT protocol
MQTT library for Arduino
Package mqtt provides an MQTT v3.1.1 client library.
MQTT WiFi remote control for the Intex PureSpa SB-H20 and SJB-HS whirlpools
A BLE to MQTT bridge running on an ESP32
code for ESP32 Adafruit Feather to get various sensor readings and publish them to MQTT broker