This Line Following Robot Sensor Circuit work like robot eyes for follow line. It uses special sensor called IR or infrared to see black line and white ground. These sensor are like small light but light is invisible. Circuit look how much light come back then know where line is. Then this information goes to […]
Simple 5V Switch Mode Power Supply Circuit using IC LM2674
This Simple 5V Switch Mode Power Supply Circuit using IC LM2674 work like charger for electronics but better. It take strong electricity which is more than 5 volt and make it just 5 volt. 5 volt is perfect power for small electronics like those tiny computer boards for projects. Inside it got a special chip […]
Heat Sensor Circuit using Piezo Transducer
This Heat Sensor Circuit using Piezo Transducer is like small detective for heat. It uses special thing called piezo transducer which work like tiny electricity maker. When it get hot or cold it presses itself little bit and make small electric shock. The circuit look at this shock to know how much hot or cold […]
Automatic Parking Light Switch Circuit
This special Automatic Parking Light Switch Circuit makes car parking lights turn ON by itself. It look outside to see how bright it is. One light sensor is like LDR thing which check the light outside. If outside it become dark, more dark than set level then circuit turn ON the switch. Then electric connects […]
Simple IC 555 PWM Generator Circuit
Imagine our devices as a little translator! This Simple IC 555 PWM Generator Circuit work like that translator but for signal and electricity. It uses one special chip called as IC 555 to take message and make it like pulse signal. This pulse signal can help control things like light brightness or motor speed. Circuit […]
Simple LED Voltmeter Circuit
This Simple LED Voltmeter Circuit is like small battery checker but with cool lights. Not like phone bar this one is used in many tiny lights like LEDs to show how much battery is still there. More lights turn ON when battery is more full and each light become ON at different voltage. It also […]