SMS Based Ac Motor Control with Gsm and Arduino Uno Code

Agriculture is one of biggest industry in India which serves food for more than a billion people every year. Producing vast amount of food is never an easy task; irrigation is one of the factor.

Most of the agriculturist’s crop field is situated far from their residence, just turning on the water pump costs huge for their transportation per year.

This SMS based GSM pump motor controller takes a baby step towards agricultural development, this may not be a revolutionary project but, it may bring delight among agriculturists.

Circuit Diagram:

Single Phase Motor Control with GSM and Arduino Uno Code

The project is designed with minimal hardware components so that a beginner can accomplish it with ease.
The circuit consists of power supply, which powers the whole setup.

The Arduino is the brain of the project which take decisions and GSM modem which sends and receives text SMS and communicate with the user and relay which controls the motor.

Single Phase Motor Control with GSM and Arduino Connection:

A fixed 12V voltage regulator gives power to arduino, GSM modem and relay.

The GSM modem is connected to arduino at pin #0 and pin #1, which are RX and TX respectively.

The RX of GSM is connected to TX of arduino and TX of GSM is connected to RX of arduino.

If you are confused, just look at the below diagram,misconnection will not send or receive SMS.

ARDUINO TX———————-RX GSM modem
RX———————-TX

Ground to ground connection is also established between arduino and GSM modem.

Try to get a male jack power connector for the GSM and arduino, if not just solder the wires directly from power supply to arduino and GSM, which might increase the mess in the project.

The transistor drives the relay and the diode protects the circuit from high voltage spikes while switching the relay ON/OFF.