Learn how to easily adjust the contrast of a 1602 LCD display using Arduino. In this quick tutorial, I’ll show you a simple trick to control the contrast electronically, without relying solely on 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 ...

This is just a fun Arduino project that uses leds connected in circle as a ring to produce a rotation effect. ... You will need an Arduino board, a potentiometer ... (#21). Then store this value ...