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 ...

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?

This is a simple arduino project for a soil moisture ... s value is to try different values or use a potentiometer. Insert the probes into the soil that has the desired moisture when to light up the ...