Datasheet
Matrix Color Pins
Pi GPIO #5 - Matrix R1 (Red row 1) pin
This pin controls the red LEDs on the top half of the display
Pi GPIO #13 - Matrix G1 (Green row 1) pin
This pin controls the green LEDs on the top half of the display
Pi GPIO #6 - Matrix B1 (Blue row 1) pin
This pin controls the blue LEDs on the top half of the display
Pi GPIO #12 - Matrix R2 (Red row 2) pin
This pin controls the red LEDs on the bottom half of the display
Pi GPIO #16 - Matrix G2 (Green row2) pin
This pin controls the green LEDs on the bottom half of the display
Pi GPIO #23 - Matrix B2 (Blue row 2) pin
This pin controls the blue LEDs on the bottom half of the display
Matrix Control pins
Pi GPIO #4 - Matrix OE (output enable) pin
This pin controls whether the LEDs are lit at all
Pi GPIO #17 - Matrix CLK (clock) pin
This pin is the high speed clock pin for clocking RGB data to the matrix
Pi GPIO #21 - Matrix LAT (latch) pin
This pin is the data latching pin for clocking RGB data to the matrix
RGB Matrix Address pins
Pi GPIO #22 - Matrix A (address A) pin
This pin is part of the 1->16 or 1->8 multiplexing circuitry.
Pi GPIO #26 - Matrix B (address B) pin
This pin is part of the 1->16 or 1->8 multiplexing circuitry.
Pi GPIO #27 - Matrix C (address C) pin
© Adafruit Industries https://learn.adafruit.com/adafruit-rgb-matrix-plus-real-time-clock-hat-for-raspberry-pi Page 8 of 39










