Before the software part, let's first set up the circuit to connect the LED to the Arduino. The completed circuit should look like Figure 2. Figure 2. Circuit for a Single LED Blink Next, in your ...

According to how long it stays in 5V and 0V (using the delay() function) you can obtain the fade effect. If delay() has a low value (for example 50ms or 0.05s) the fading speed will be higher because ...

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 ...