This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

Using a potentiometer, you will be able to control the resistance of an LED. Turning the knob will increase and decrease the frequency the LED blinks. In the code, there is a challenge which is trying ...

This project demonstrates how to control the built-in LED on an Arduino Uno using a Python-based graphical user interface (GUI). The Python script communicates with the Arduino over a serial ...

Circuit Diagram. Circuit diagram for Arduino DC Motor Speed Control using PWM is geven below: Code and Explanation. The complete code for Arduino DC Motor Control using potentiometer is given at the ...

Circuit simulation made easy partsim.com. ... If you do not believe that test it yourself quickly through an Arduino and a PWM example sketch. You can clearly see a big brightness change between ...