Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

Arduino GPS Tracker Circuit Diagram The Arduino GPS tracker circuit connects three main components: Arduino UNO R3, NEO-6M GPS module, and SIM800L GSM module. This design uses both hardware and ...

Adafruit MQTT Library Arduino library for MQTT support, including access to Adafruit IO. Works with the Adafruit FONA, Arduino Yun, ESP8266 Arduino platforms, and anything that supports Arduino's ...

Adafruit IO Arduino Library This library provides a simple device independent interface for interacting with Adafruit IO using Arduino. It allows you to switch between WiFi (ESP8266, ESP32, ESP32-S2, ...