This article will explore the workings of a relay module and provide a detailed guide on how to interface a single channel relay module with an Arduino.

Relay-Module-With-ESP32 Project Description This project contains Arduino code for an ESP32 microcontroller to control a relay module, which in turn controls lights, to create a variety of blinking ...

SIM900-Arduino-Relay-Control This project uses GSM Module (SIM900) with Arduino to switch Relay state by SMS OR CALL.

Welcome to my quick review of an inexpensive 2-channel 5V relay module controlled via RS485 bus utilizing Modbus RTU protocol. As claimed by some online sellers, this easy-to-get Modbus RTU 2-Channel ...

Automatic Irrigation System Using Arduino Uno Build Time: 3-5 hours | Cost: $25-35 | Difficulty: Beginner-Intermediate What You'll Learn: How to interface a soil moisture sensor with Arduino and ...