You can see more arduino led projects here. If you upload this sketch you’ll notice that the LED is blinking once every second. Now let’s analyze the code. In the setup function is only one ...

I made this Arduino 8 bit ... the comments in the code for each line). Tbe byte pins[] is an array where we store each pin number where we’ve connected the leds but remember that the led at pin 5 is ...

This is a basic schematic of the LED connected to pin 13. Everything inside the dotted line represents a simulation of the Arduino. Just trust that the 500 mHz clock is the same as the blink code ...

Pumpkin Eyes uses two MAX7219 LED ... code on GitHub for those interested. Of course, if you want a bit more of an advanced project you could make a Tetris jack-o-lantern, featuring a whopping 8 ...