Simple example of negative feedback with hysteresis in an object oriented style for the Arduino

Wemos D1 mini code and circuit design for a remotely controllable (using HTTP) array of relays, meant to be concealed inside standard switchboards.

A simple ESP8266 WiFi Web Server that opens a garage door

Bluetooth Controlled Car with IOT based vehicle Monitoring System and Automatic Circuit Breker

Efficient neutrient file technique hydroponic system with particle photon IoT and ultrasonic sensor

Simple Timer Relay for Arduino

Switching Multiple Relays

Control anything, anywhere! with your ESP8266

ESP8266 switches Relay module depending on current temperature of DS18B20 temperature sensor.

Low cost fingerprint lock door

arduino and relay

This project serves as a practical example of IoT (Internet of Things) technology, showcasing seamless wireless device control through a standard web browser.

Este programa implementa un sistema de control basado en un lector RFID que permite alternar entre el encendido y apagado de un sistema. Utiliza LEDs para indicar el estado del sistema, un relé para el control de dispositivos (aunque no se usa en la implementación final), y un buzzer para proporcionar retroalimentación auditiva.

Simulatore di circuiti di relè per imparare il funzionamento degli Apparati Centrali Elettrici FS

An Arduino program that will automatically regulate the temperature inside of a greenhouse using sensors and fan.

An ESP8266 browser/web-server project that controls an 8 channel relay board using an MCP23017 GPIO extender

Power relay to control 400 VAC 3-phase supply - clock, week based - 4 switch tables

Arduino hobby project to measure the amount of light in the ambiance

A simple program to use a microcontroller for opening and closing of a garage type of door