In this post I have explained how to make a simple railway signal lamp which can be used by the guards for providing a handheld signalling to the various trains with the many specified signalling modes. The idea was requested by Mr. Bala. Technical Specifications I need a project design for railway led signalling light . […]
Newly Updated Circuit Projects:
Obstacle Avoiding Robot Circuit without Microcontroller
In this post I have explained a simple obstacle avoiding robot circuit without microcontroller and without using special motor driver circuits or ICs. The idea was requested by Mr. Faiyyaz The Design Basically it’s in the form of a moving vehicle which is able to detect and avoid potential obstacles on its path and change […]
How to Make a Solar Panel Optimizer Circuit
The proposed solar optimizer circuit can be used for getting the maximum possible output in terms of current and voltage from a solar panel, in response to the varying sun light conditions. A couple of simple yet effective solar panel optimizer charger circuit are explained in this post. The first one can be built using […]
Digital Clock Activated Water Level Controller Circuit
An automatic clock time triggered water level controller circuit which responds to a real time clock input is discussed in the following article. The design also includes a water detection stage which makes sure the initialization takes place only in the presence of water in the tank or the pipe. The idea was requested by […]
How to Make Ultrasonic Remote Control Circuit
This ultrasonic remote control circuit can be used to switch and control any appliance ON/OFF through a relay in the receiver circuit. Written by: S.S. Kopparthy Using Ultrasonic Waves This circuit is a different one that uses ultrasonic sound waves whose frequency ranges from 40 KHz to 50 KHz. These waves can’t be heard by […]
Infrared Remote Controlled Door Lock Circuit
In this article I have explained about a simple infrared remote controlled door lock circuit which can be used for securely locking doors through unique foolproof IR frequencies. The proposed infrared remote controlled door lock circuit can be used for locking your main door, gate, garage door, shop or any entrance which may need a […]