The relay module will need 5V from Arduino to power up and will get input from four different digital pins of the Arduino. Now let’s connect the relay module to your home appliance. Take the positive ...

By using an Arduino Uno and a single-channel relay module, you can control high-voltage or high-power devices, such as lights, motors, and appliances, from your computer or mobile device. In this blog ...

In this Lora project, I have shown how to make the LoRa Arduino ESP8266 control relay using the RYLR896 LoRa module with real-time feedback. So after turning on and off the appliances the receiver ...

Fig. 3: Control panel on Android smartphone Relay module. A relay allows you to turn on or turn off a circuit using voltage and/or current much higher than what Arduino could handle. Relay provides ...

This project uses GSM Module (SIM900) with Arduino to switch Relay state by SMS OR CALL. Step 1 (Connect SIM900 With Arduino) Use picture as a reference for connecting SIM900 to Arduino.

The 2-channel relay module is connected with switch S7, this is an “OK / ENTER” switch for the radio. This S7 switch has to press each time we change the station. This 2 channel relay used in this ...

Update: The EM-18 RFID reader used in this project is no longer easily available, instead most RFID projects use the new RC522 RFID reader. We have also built an RC522 based RFID door lock system ...