4 Channel Programmable Timer Using 8051

We are using 4 * 12V relays in our project.  One LCD, 4 Relay & some push button’s are added in our project with 8051.

Sequentially you can program it. For example relay-1 on for 10 second’s, after that relay-2 on for 5 second’s, after that relay-3 on for 34 second’s & relay-4 on for 12 second. This is one complete step. Same procedure used in PLC controllers.

In Our device has 3 operation mode.

• Manual Mode

Project customization is also available.