Wall Painting Mechanism

This project is developed for the user control a Spray Painting Mechanism through Computer. The main module in this project is Personnel computer, Computer Interface, Controlling circuit, Mechanism and painting device. The user can control all the operations of the Mechanism using computer. When the user presses a specific button of the computer, a digital signal is generated and sent through a particular pin of the parallel port. This signal is thus used to drive a corresponding relay in the external electronic circuit. The relay is used as a switch to operate the particular motor in the device. By this way the user can control any of the operations of the device.