Adafruit Small 1.2" 8x8 LED Matrix with I2C Backpack - Yellow _MAKE_SENSOR_DISTANCE a 470uF power filter capacitor

a 470uF power filter capacitor and a 1KΩ trim pot

Resolution: 5mil/0

All this functionality is implemented in a light-weight SPI interface so that any Arduino can play audio from an SD card

6" wide 20 pin breadboard spacing

Adafruit Small 1.2" 8x8 LED Matrix with I2C Backpack - Yellow _MAKE_SENSOR_DISTANCE a 470uF power filter capacitorWhat's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or a 4 digit 7 segment display. Matrices like these are 'multiplexed' so to control 64 LEDs you need 16 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of space. Here at Adafruit, we feel your pain! After all, wouldn't it be