This light activated switch circuit, automatically switches ON a connected lamp when night falls, and switches it OFF during day break. It has many applications, it could be used as […]
Simple Transistor Tester Circuit
Simple transistor tester circuit is quite easy and low cost circuit, is just not built to calculate any transistor efficiency figures, however is designed to get fast testing to signify […]
PIR Motion Sensor Circuit
This PIR motion sensor circuit detects a human presence and can be used to sound an alarm when a human is detected within its range. This is my smallest, cheapest, […]
Simple Multi-function Timer Circuit
This Multi-function timer circuit can be used to generate many different timing outputs at different desired ranges. A timer is practically unachievable without IC 555 or counter ICs along the […]
LM317 Dispaly Intensity Controller Circuit
The following post explains how the IC LM317 can be used for automatically controlling 7 segment LED display intensity with respect to the variations in the ambient light conditions, detected […]
Exponential Waveform Generator Circuit
This exponential waveform generator circuit provides you with a waveform which sinks exponentially from a specific voltage to near-zero, after which quickly resets to reactivate the sequence. How it Works […]