Automatic Doorbell Light Circuit is like small help friend for our door; like when someone presses doorbell light turn ON by itself near button. Also, it help us to see button easily and specially in night or dark time; so we can open door fast and can be safe for visitor. Circuit Working: Parts List: […]
Hobby Circuits
Simple Light Operated Relay Circuit
Simple Light Operated Relay Circuit work like small auto light switch, as it uses special sensor like LDR or photo diode which work like small eye. Furthermore, when light appears sensor gives signal to the circuit and then circuit turn the relay ON or OFF; and this help for turning outside light at night or […]
Simple Rain Sound Effect Generator Circuit
This small and Simple Rain Sound Effect Generator Circuit it like a rain sound maker in box, as it uses electric parts to make sound and almost same like real rain drop. Also, this soft sound are good for many things like background music or sleep timer or help us in dreaming. So next time […]
Simple Adjustable Zener Diode Circuit
Think like small switch which controls how much voltage go through. A normal Zener diode works like a fixed switch that allows electricity to pass only when the voltage rises above a certain level, but this Simple Adjustable Zener Diode Circuit works more like a flexible dimmer switch. We can also change voltage level using […]
Line Following Robot Sensor Circuit
To begin with, this Line Following Robot Sensor Circuit work like robot eyes to follow line. Furthermore, it uses special sensor called IR or infrared to see black line and white ground. Also, these sensor are like small light but light is invisible. Then circuit look how much light come back then know where line […]
Automatic Parking Light Switch Circuit
This special Automatic Parking Light Switch Circuit makes car parking lights turn ON by itself and it also helps to look outside to see how bright it is. Here, one light sensor is like LDR thing which check the light outside and if outside it become dark, more dark than set level then circuit turn […]