This project explains about a complete Automatic PIR Motion Sensor Light Circuit. It is very useful for home and outdoor lighting, because the circuit uses a PIR sensor. Whenever motion is detected the light turns ON automatically. After some time, the light turns OFF and therefore, power is saved. Also, through this circuit the human […]
LED and Lamps
Transistor Based Bicycle Tail Light Flashing Circuit
This project is for a simple Transistor Based Bicycle Tail Light Flashing Circuit. It is mainly used as a bicycle tail light and it works on low voltage battery. So it is good for portable use. Moreover, the circuit uses very few components, because of this its easy to build. Also, power consumption is low […]
Transistor Based LED Alternator Blinker Circuit
This circuit is for simple Transistor Based LED Alternator Blinker Circuit. Two LEDs blink one after another as this circuit uses two NPN transistors. This circuit is an astable multivibrator, which is also called an oscillator circuit. This project is good for beginners an it is used for learning transistor switching. It can be used […]
Arduino Based 55W Halogen Light Controller Circuit
This circuit is used to control a Arduino Based 55W Halogen Light Controller Circuit. Arduino gives low voltage signal and MOSFET handles high voltage and high current. This circuit is useful for dimming, ON/OFF control and automation projects. Arduino Coding: Code Explanation: Circuit Working: Parts List: Component Name Value Quantity Resistor 1k 1/4 watt 1 […]
Soft ON Circuit for 12V Halogen Lamp
In this post halogen lamp draws very high current at switch ON. Cold filament resistance is very low and this causes sudden inrush current. Lamp life becomes short with this circuit protects lamp and it also protects outside fuse and switch indirectly. Soft ON Circuit for 12V Halogen Lamp reduces this problem. Lamp voltage rises […]
Fading LED Circuit using Arduino and Potentiometer
This project shows how to control Fading LED Circuit using Arduino and Potentiometer. Potentiometer gives analog voltage. By rotating the potentiometer knob varies the voltage output and arduino reads this variation. Arduino reads it and changes LED brightness and this LED brightness changes smoothly. It is easy to make a simple project for beginners and […]