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.

Here, we are using a 4 relay module because we will only control four appliances. If you want to automate a different number of appliances, you can use a different relay module. There are many relay ...

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

Power on the receiver circuit next and wait for five seconds as defined in receiver code. Press pushbutton (S1 or S2) in transmitter circuit to control the corresponding relay in receiver circuit.

Smartphone-Controlled Arduino Projects: Use Bluetooth and Wi-Fi for Wireless Communication These two practical Arduino projects show you how to control a relay from a smartphone using an Arduino Uno ...

Working of Arduino Based RFID Door Lock The RFID system consists of two components: an RFID tag and a Reader. The RFID tag consist of integrated circuit and an antenna, integrated circuit is for the ...