Our project is infact an Arduino with Serially Interfaced MAX7219 Operates an 8X8 LED Matrix to display a heart pattern. The MAX7219 IC is a serial input/output common-cathode display driver that ...

But [Martin Held] built a super simple LED Christmas tree ornament using the ATSAME51 series micro-controller, which he regularly works with and had on hand, and lots of bi-color LEDs.

Designed to specifically make debugging Arduino projects easier and quicker the DeDe is capable of providing quick feedback on the logic state of any GPIO pin with bright red and green LEDs, even ...