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 ... map() function to ...

MPC41010 is a tiny digital potentiometer from Microchip with a maximum resistance value of 10 KΩ (minimum value 100 Ω ... As a basic test, you can drive MCP41010 with the help of an Arduino UNO and ...

The Arduino Mega's PWM pins are digital ... One is using an analog input like a potentiometer. In this case, the analogWrite() value is dependent on the value read from the input.

If we asked you to light up an LED using an Arduino, there’s a good chance ... Finally, arrange the LEDs in an attractive circle around a potentiometer. Wait, how are you going to do that?

Call it synchronicity, or manually setting a 16-bit number in an Arduino, or how to turn an OLED into a rotary dial... What am I talking about? Well, I was just compiling the blogs pages for the next ...