The LED’s brightness is controlled with analogWrite(), which varies the voltage to the LED based on the potentiometer’s value. The sensor value and corresponding LED brightness are printed to the ...

Arduino board (Arduino Uno) Potentiometer. LED. Resistor (220 ohms to 1k ohm, for current limiting the LED) Breadboard. wires. 1-Connect the Potentiometer:-Connect one outer terminal of the ...

We set the potentiometer pin as 0 (A0 on the Arduino Uno board), the CONTROL variable is the voltage that is used to cotrol the led brightness of the speed of the fan. In the setup() function the ...

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 ...

Here is a simple, yet useful circuit of an Arduino 4-digit 7-segment LED display unit. The module used here is a self-contained, compact common-cathode module containing four 7-segment LED numeric ...