Name: 32x32 RGB LED Matrix Panel - 5mm Pitch
Brand: Adafruit
SKU: 2026

Logical pinout · physical placement not verified

R1
HUB75 red data for the upper half of the RGB matrix panel; Adafruit matrix wiring guide names R1/G1/B1 as upper-half colour data.
Type · Signal
G1
HUB75 green data for the upper half of the RGB matrix panel.
Type · Signal
B1
HUB75 blue data for the upper half of the RGB matrix panel.
Type · Signal
R2
HUB75 red data for the lower half of the RGB matrix panel.
Type · Signal
G2
HUB75 green data for the lower half of the RGB matrix panel.
Type · Signal
B2
HUB75 blue data for the lower half of the RGB matrix panel.
Type · Signal
A
Row address select signal for the RGB matrix panel.
Type · Signal
B
Row address select signal for the RGB matrix panel.
Type · Signal
C
Row address select signal for the RGB matrix panel.
Type · Signal
D
Row address select signal for the 32-row RGB matrix panel.
Type · Signal
CLK
HUB75 clock input for clocking RGB data to the matrix.
Type · Signal
LATSTB
HUB75 latch/strobe input; Adafruit notes LAT may be labelled STB on some panels.
Type · Signal
OE
HUB75 output-enable input controlling whether the LEDs are lit.
Type · Signal
5V
Panel power input for LED matrix power.
Type · PowerVoltage · 5 V panel supply
GND
Panel ground; Adafruit guide notes ground pins may be unlabeled but must be connected.
Type · Ground

Pin	Type	Function	Voltage
R1	Signal	HUB75 red data for the upper half of the RGB matrix panel; Adafruit matrix wiring guide names R1/G1/B1 as upper-half colour data.
G1	Signal	HUB75 green data for the upper half of the RGB matrix panel.
B1	Signal	HUB75 blue data for the upper half of the RGB matrix panel.
R2	Signal	HUB75 red data for the lower half of the RGB matrix panel.
G2	Signal	HUB75 green data for the lower half of the RGB matrix panel.
B2	Signal	HUB75 blue data for the lower half of the RGB matrix panel.
A	Signal	Row address select signal for the RGB matrix panel.
B	Signal	Row address select signal for the RGB matrix panel.
C	Signal	Row address select signal for the RGB matrix panel.
D	Signal	Row address select signal for the 32-row RGB matrix panel.
CLK	Signal	HUB75 clock input for clocking RGB data to the matrix.
LATSTB	Signal	HUB75 latch/strobe input; Adafruit notes LAT may be labelled STB on some panels.
OE	Signal	HUB75 output-enable input controlling whether the LEDs are lit.
5V	Power	Panel power input for LED matrix power.	5 V panel supply
GND	Ground	Panel ground; Adafruit guide notes ground pins may be unlabeled but must be connected.

Logical pinout · physical placement not verified

Pin details

15 connections

R1
HUB75 red data for the upper half of the RGB matrix panel; Adafruit matrix wiring guide names R1/G1/B1 as upper-half colour data.
Signal
G1
HUB75 green data for the upper half of the RGB matrix panel.
Signal
B1
HUB75 blue data for the upper half of the RGB matrix panel.
Signal
R2
HUB75 red data for the lower half of the RGB matrix panel.
Signal
G2
HUB75 green data for the lower half of the RGB matrix panel.
Signal
B2
HUB75 blue data for the lower half of the RGB matrix panel.
Signal
A
Row address select signal for the RGB matrix panel.
Signal
B
Row address select signal for the RGB matrix panel.
Signal
C
Row address select signal for the RGB matrix panel.
Signal
D
Row address select signal for the 32-row RGB matrix panel.
Signal
CLK
HUB75 clock input for clocking RGB data to the matrix.
Signal
LATSTB
HUB75 latch/strobe input; Adafruit notes LAT may be labelled STB on some panels.
Signal
OE
HUB75 output-enable input controlling whether the LEDs are lit.
Signal
5V
Panel power input for LED matrix power.
PowerVoltage · 5 V panel supply
GND
Panel ground; Adafruit guide notes ground pins may be unlabeled but must be connected.
Ground

Start wiring

I2C · SPI · Single data line · 5 V · 3.3 – 5 V · Bare

Verify supply voltage and logic levels before powering up.

Module pins: 5V, GND, R1, G1, B1, R2, G2, B2. Schematik maps them to your board in the app.

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