This Simple 220V LED Night Lamp Circuit design make night light work straight from home power plug which is usually 220V AC. It does this by using small transformer or special capacitor to drop voltage low so LED lamp can work safe. Circuit Working: Parts List: Type Value Quantity Resistors 10Ω 1W 1 560k 1/2W […]
How to Interface Microcontroller and Arduino with Relay
In this article How to Interface Microcontroller and Arduino with Relay first we need to think about small computer like Arduino which cannot control big current. Relay is like one switch and it can handle big current for motor, light and heater. To connect safe we have used one transistor like translator and one optocoupler […]
220V Temperature Controller Circuit
This post talks about 220V Temperature Controller Circuit in easy way. Circuit can turn ON or OFF heater, cooler or other things to keep same temperature. It uses big power like 220V. Has sensor like thermometer to check heat or cold. Has small brain chip or timer to decide when to turn ON or OFF […]
Automatic Power Delay OFF Circuit
This Automatic Power Delay OFF Circuit is like small helper to remind us to turn OFF things. We can connect it with our device with the time frame like 1 hour, 2 hour as it stops the power by itself. It is very useful if we want to keep nightlight ON for some time or […]
220V Lamp Flasher Circuit using IC 555
This 220V Lamp Flasher Circuit using IC 555 uses one special chip IC 555 to make normal bulb blink like party light. The chip make ON/OFF signal. This signal connects to transistor or triac which work like switch for bulb power. When power goes ON and OFF fast then bulb start blinking in fixed speed. […]
Simple LED Tester Circuit
This small and Simple LED Tester Circuit is like a small doctor for LED. It helps to see if our light LED is working or not. Think like a small setup one battery, some small resistor like tiny traffic light for electric and clip to put LED. When we put LED in circuit check if […]