[Alex] put together this charming very little LED project. The square pixel matrix is soldered directly to the microcontroller in the exact same style as EMSL’s Micro-Readerboard. during the prototyping phase he utilized resistors to limit the present from the programming board. The final product doesn’t utilize resistors as well as handles the present draw by only turning on a single pixel line at a time. The illustrated assembly guide is extremely complete as well as must assist your produce an similarly compact device. inspect out a video of it in movement below.