Simple design - plug in power, plug in IDC cable, run our Python code! Onboard level shifters to convert the RasPi's 3.3V to 5.0V logic for clean and glitch free matrix driving Works with any of Adafruit 16x32, 32x32, 32x64 or 64x64(even with 'E' address pins) RGB LED Matrices with HUB75 connections DS1307 Real Time Clock can keep track of time for the Pi even when it is rebooted or powered down, to make for really nice time displays Power protection circuitry - you can plug a 5V 4A wall adapter into the HAT and it will automatically protect against negative, over or under-voltages!