In this post I will explain a simple ultrasonic weapon circuit also called USW, using very ordinary parts such as IC 555 and a few other passive components to generate […]
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LM567 Tone Decoder IC Features, Datasheet and Applications
In this post I will explain the main specifications, datasheet and working principle of the IC LM567, which is a precise phase-locked loop with synchronous AM lock detection and power […]
How to Control Motor with a Cell Phone
In the following post I will explain a very simple circuit idea which can be used for controlling a motor’s rotational direction i.e. for moving it either clockwise or anticlockwise […]
Using a Fan Dimmer for Controlling LED Intensity
The circuit idea I have I have explained in this article can be used for controlling the intensity of many LEDs through a ceiling fan dimmer switch unit. This circuit was requested […]
Cell Phone Emergency Charger Pack using Ni-Cd Batteries
In this post I will explain the construction of a simple emergency charger pack using Nicket Cadmium (Ni-Cd) batteries for your cellphones and smart phones for emergency charging of your […]
Simple Intercom Circuit [2 way]
The article presented below describes a very simple intercom system which can be built and installed at any required place very cheaply. The circuit utilizes just a single IC and […]