Running LED
Two button control
Relay clock
Toggle on-off
Electronic key
Bistable relay

Elevator control
Traffic light
Automatic stair lights

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About this website

Welcome and thanks for visiting my website. Here I share circuits schematics and PLC ladder diagrams designed by me.
All the circuits and PLC schematics are available for free, but they shouldn't be used for professional purpose. Though I tested them I don't promise that they work fine. Besides, since they are hobby projects, they are not approved by the safety standards.
Electricity may be dangerous. Do not work on circuits if you don't know what you are doing. A schematic is not enough: you need a basic knowledge that you will not find within this website.