This music operated dancing light circuit can be positioned in front or near any loudspeaker or an audio source and enable a correspondingly dancing or sequencing lights connected at the output of the circuit. Since the design is based on triacs and mains AC, the lamps are 220V or 120V AC filament lamps, which may […]
Hobby Projects
Push-Button ON/OFF Switch using Schmitt Trigger
A pretty helpful functionality expressed in a simple push-button ON/OFF switch using schmitt trigger circuit that may be well suited for several applications. Basically the output of the Schmitt trigger N1 changes (toggles) as soon as the switch is closed briefly. This single push button toggle ON/OFF function is accomplished in such a straightforward circuit […]
Very Sensitive Clap Switch Circuit
Here we learn a simple yet very sensitive and powerful clap switch circuit, which can be used for operating a relay and switch ON/OFF any electrical load or appliance. This is a unit very sensitive to sounds and disturbances, received within a microphone capsule and refined, take action on a relay. It could be arranged […]
Day Night Activated Triac Switch Circuit
The purpose of the discussed triac based day night activated switch circuit is to automatically switch OFF a given electrical appliances and peripherals during day light and vice versa, this could be a lamp, an alarm, etc. Generally speaking, this is a type of photoelectric relay which is driven directly through the home’s mains electrical […]
Automatic Darkness Activated Porch Light Circuit
The post explains a simple dark triggered porch light or corridor light circuit using a single IC 741 and few other passive components. This arrangement enables you to automatically switch on your porch lights while when evening stes in or at nightfall. It could additionally be applied to activate the backyard lights at night and […]
Programmable Musical Organ Circuit
In this post we are going to construct a musical organ circuit whose musical tone can be programmed by adjusting 10 pre-sent resistors in the circuit and the speed of the music played can also be controlled. The proposed circuit is based on IC 555 and IC 4017; it has two IC 555s and one […]