This circuit is for simple Transistor Based LED Alternator Blinker Circuit; here, two LEDs blink one after another as this circuit uses two NPN transistors. This circuit is an astable multivibrator, also known as an oscillator circuit; also this project is ideal for beginners because it helps them learn transistor switching, and we can further, […]
LED and Lamps
Arduino Based 55W Halogen Light Controller Circuit
To begin with, this project controls a 55W halogen lamp using an Arduino, here, the Arduino provides a low-voltage signal, while the MOSFET handles the high voltage and high current. Also, this circuit is useful for dimming, ON/OFF control and automation projects. Arduino Code: Circuit Working: Parts List: Components Values Quantity Resistor 1k 1/4 watt […]
Soft ON Circuit for 12V Halogen Lamp
In this post halogen lamp draws very high current at switch ON, then cold filament resistance is very low and this causes sudden inrush current. Lamp life becomes short, then this circuit protects lamp and it also protects outside fuse and switch indirectly; therefore, Soft ON Circuit for 12V Halogen Lamp reduces this problem. Lamp […]
Fading LED Circuit using Arduino and Potentiometer
This project shows how to control Fading LED Circuit using Arduino and Potentiometer and this potentiometer gives analog voltage; therefore, by rotating the potentiometer knob varies the voltage output and Arduino reads this variation. Then Arduino reads it and changes LED brightness and this LED brightness changes smoothly; furthermore, the circuit is easy to make […]
Simple Up Down Fading LED Circuit
This circuit makes LED glow slowly and then fade slowly which looks like breathing effect, also it uses simple parts like only resistor, capacitor and transistor and with no microcontroller. Furthermore, beginners can easily build this Simple Up Down Fading LED Circuit on a breadboard, and they can use it in shopping malls, homes and […]
Arduino and Joystick LED Controller Circuit
This project shows how to control many LEDs using one joystick and Arduino; also the joystick moves in X and Y direction, then Arduino reads this movement and turns ON or OFF the LEDs. Moreover, this Arduino and Joystick LED Controller Circuit is simple to build and is good for beginners and Arduino lovers. Arduino […]