Arduino Projects

DTMF Based Home Automation Using Arduino

Today we’re going to learn how to make DTMF Based Home Automation Using Arduino this is very intresting project As we know, the demand for home Automantion devices has increased over the past few years. There are so many products in our market.

DTMF Home Automation (Dual-tone multi-frequency signaling)  you can Control your home electronics appliances like bulb and water pump or any electronics devices from anywhere.  if you forgot to turn off the Bulb or other electronics appliances while going out, this DTMF Home Automation helps you to turn off the appliance with your phone call.

Required Material

  1. GSM Module 800l
  2. Arduino UNO
  3. Switch Button
  4. Relay
  5. Wires
  6. Bulb
  7. Holder

DTMF Based Home Automation Using Arduino Schematic Diagram

The Schematic diagram is very straightforward. You have to connect the SIM800L GSM module and Relay pins with Arduino pins as per the schematic diagram. The schematic diagram is shown below. DTMF Based Home Automation Using Arduino


First, download the code attached below. Then download the following libraries and install them.

  1. Adafruit Fona Library

After installation, all the libraries, set the correct board and COM port, then upload the below code.

Source Code

Final Testing

Now you will be able to Control Electronics appliance.

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