In this post we will discuss 3 different light meter circuits for measuring power of light. In the first method we will use only a solar cell and a multimeter, […]
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Temperature Controlled Relay Switch Circuit
In this article we discuss a simple temperature controlled relay circuit which can be switched ON/OFF depending on the temperature on its temperature sensor. Meaning, when the temperature on its […]
LED Oscilloscope Circuit
The simple LED oscilloscope circuit explained in this article can be used for analyzing low frequency waveform through a 10 x 10 LED matrix display. Due to the involvement of […]
How to Design Simple LED Driver Circuits
In this post we will discuss how to design your own customized, simple LED driver circuits at home. We will learn how to calculate specific LED configurations for applying the […]
Medical Store LED Cross Sign Circuit [Plus Sign]
In this post we will learn how to make an interesting yet simple running LED cross sign or plus sign module for displaying in front of medical stores. Nowadays, it […]
Light Controlled Sound Effect Generator Circuit
This unique circuit allows you to create many different sound effect outputs simply by moving your hands over a couple of light dependent resistors, by varying the intensity of incident […]
3 LED Battery Level Indicator Circuit
The proposed 3 LED battery level indicator can be typically used for monitoring a 12 V lead acid battery charge level, through 3 distinct LED illumination. The entire circuit is […]
Cellphone Controlled Plant Watering Circuit
In this post we will discuss a couple of circuits that will allow automatic watering of plants and flower pots, even while the owner of the house is away from […]
Firecracker Igniter circuit [Remote Controlled with Timer]
In this post we are going to construct a few fireworks ignition circuits which can safely ignite them via IR remote and timer. We have proposed three firecracker igniter circuit […]
LED Star Circuit
This circuit can be used like a tree ornament, however the LED star circuit explained here has a variation; it’s completely electronic and it provides the impression of an exploding […]