Did you know that you can use Arduino to turn on an LED when you press a button? Well, it is true, you can do this! Leaving the joke aside, let me show how you can achieve this. You will need the ...

To read each button push, the Arduino brings one keypad input line high and checks the voltage of the four output lines in order. ... Each RGB LED has three LEDs inside the package.

Now, though, it shouldn’t be hard to control the RGB LED strips through an Arduino, ... Try pressing the “Fade7” button in the bottom right corner, I think there’s 1-7 options, ...

Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push button increment of the counter from 0 to 9. The whole circuit can ...