#define POTENTIOMETER 2 // Connect the potentiometer — or pot — on analog PIN 2. #define LED 13 // Tap into the built-in LED, which is connected on digital PIN 13. #define BAUD_RATE 9600 // Define the ...

App 1 – Button enables potentiometer, potentiometer sets LED’s brightness App 2 – Button powers on/off the LED, potentiometer sets LED’s brightness App 3 – LED blinks on its own, button pauses blink, ...

This is tutorial number 1 from our series of Arduino tutorials and in this part I will talk about blinking an LED using the one already available on the Arduino Uno board or using an external LED to ...

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 ...

It is a pretty common first project to use an Arduino (or similar) to blink an LED. Which, of course, brings taunts of: you could have used a 555! You can, of course, also use any sort of oscillato… ...