Keyestudio 8x8 Dot LED Matrix I2C MAX7219 MCU Control HT16K33

Item number: CP02021

Category: LED-Matrix

GTIN: 4060137059223

SKU: KS0064

Country of origin: CN

5,50 €

including 19% VAT. ,

Available now!

Shipping time: 1 - 3 workdays


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A fun way to make a small display is to use an 8x8 matrix or a 4-digit 7-segment display. Matrices like these are 'multiplexed' - to control 64 LEDs you need 16 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you, but there's a lot of wiring to set up and they take up a ton of space. After all, wouldn't it be awesome if you could control a matrix without tons of wiring? That's where these lovely LED matrix backpacks come in.

The matrices use the constant-current drivers for ultra-bright, consistent color, 1/16 step display dimming, all via a simple I2C interface.


  • 8 rows and 8 cols LED matrix
  • Driven by HT16K33 chip
  • Access to I2C communication pins
  • Occupy less IO ports of microcontrollers
  • Easy connection and available for more experiment extensions
  • Input voltage: 5V
  • Rated input frequency: 400KHZ
  • Input power: 2.5W
  • Input current: 500mA

Connect the SCL pin to Analog A5, SDA pin to Analog A4 port; Connect VCC pin to 5V port, GND pin to GND.

Energy Efficiency Label: LED(A++--E)

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