KEYESTUDIO 3Pcs I2C Interface 8X8 LED Dot Matrix Display Module Kit for Arduino Raspberry Pi Project
KEYESTUDIO 3Pcs I2C Interface 8X8 LED Dot Matrix Display Module Kit for Arduino Raspberry Pi Project
Introduction 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. Features This matrix is RED, BRIGHT, Great display and easy to use! 8 rows and 8 cols LED matrix driven by HT16K33 chip Access to I2C communication pins Occupy less IO ports of microcontrollers It is very nice to plug into a breadboard or connect with jumper wires. The software which drives them are easily downloaded and installed in the Arduino IDE. Truely a cool learning tool for kids and adults. Parameters Input voltage: 5V Rated input frequency: 400KHZ Input power: 2.5W Input current: 500mA Read more Get this for a project- bright display, easy to get working on the Arduino or even your own custom hardware! Connect the SCL pin to Analog pin A5, SDA pin to Analog pin A4; Connect VCC pin to 5V, GND pin to GND. It allows you to auto create the sequences to display a graphic with ease. Read more
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