The 3x3 LED matrix is sold in 3-packs. The boards are pre-assembed, but you will need to supply cables for connection yourself.

There are several was of connecting the boards, depending on how you want to use the LEDs.

Board connectors

• VCC - supply VCC to one of the pins marked VCC. 5V or 3.3V is ok, depending on your
• GND - supply GND to one of the pins marked GND
• DIN - connect to a microcontroller GPIO pin
• DOUT - leave unconnected if you are using just one led matrix. Several boards can be put in series by connecting this pin to DIN on the next board. Leave DOUT on the last board unconnected.

Examples

• Single board

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• Serially connected boards

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