Adafruit RGB Matrix HAT RTC for Raspberry Pi

With this HAT for the Raspberry Pi A+/B+, you can easily control all HUB75 RGB LED matrices with 16x32, 32x32, or 32x64 LEDs. You can even cascade multiple matrices; the power of the Raspberry Pi is sufficient to control approximately 32x128 LEDs. A 5V power supply is required to power the LEDs. This is not included in the package along with the LED matrices and the Raspberry Pi and must be ordered separately. The matrix is delivered as a kit. All SMD components are already soldered; only the Pi header, HUB75 connector, and power connector need to be soldered. If you prefer not to do this yourself, we can provide the shield pre-assembled for an additional charge. A CR1220 coin cell battery is required for the RTC (not included). Simple design: just plug it in and run the Python code, protection switch: a 5V power supply can be directly connected to the reverse-polarity protected connector on the HAT, onboard level shifter: converts 3.3V to the required 5V, DS1307 Real Time Clock: so your Pi keeps track of time even when restarted.