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Engineering Projects

Touch Screen GLCD based Digital Devices Control System

Published on Nov 30, 2023


The aim of this project is to build a Graphical LCD Touch Screen interface for switching electrical devices. The controlled devices can be of high voltage or low voltage. A virtual on screen keypad and control board can be developed by the program running inside microcontroller. The status of devices can be viewed on Graphical LCD. No needs to have mechanical push buttons or LED indicators.

Users can control the devices with gentle finger touch. Controlling of Electrical appliances such as Television can be Passwordprotected. By this we can limit the access to certain electrical devices to children or any other un-authorized persons.

This project consists of a microcontroller that takes input from touch screen and processes the request. Then it processes the data and takes necessary action and updates the status on Graphical LCD.

The major building blocks of this project are:

Microcontroller Mother Board with regulated power supply.

Electromagnetic Relay (controls 230V, 10 Amps loads).

Graphical LCD with Touch Screen and Controller interface.

4. Electrical devices to be controlled.