Ks0139 keyestudio EASY plug I2C 8x8 LED Matrix
EASY plug I2C 8x8 LED Matrix
Introduction
What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix. This matrix uses a driver chip that does all the heavy lifting for you: They have a built in clock so they multiplex the display. They use constant-current drivers for ultra-bright, consistent color, 1/16 step display dimming, all via a simple I2C interface.
Note: this module needs to be used together with EASY plug control board.
Specification
- Interface: Easy plug
- Supply voltage: 4.5V-5.5V
- Maximum display: 16*8
- Size: 53*32mm
- Weight: 6g
Connection Diagram
Sample Code
Libraries Download:[1]
#include <Wire.h> // Place file “Wire.h” under the directory “library” of Arduino #include "Adafruit_LEDBackpack.h" // Place file “Adafruit_LEDBackpack.h” under the directory “library” of Arduino #include "Adafruit_GFX.h" // Place file “Adafruit_GFX.h” under the directory “library” of Arduino #define _BV(bit) (1<<(bit)) #endif Adafruit_LEDBackpack matrix = Adafruit_LEDBackpack(); uint8_t counter = 0; void setup() { Serial.begin(9600); Serial.println("HT16K33 test"); matrix.begin(0x70); // pass in the address } void loop() { // paint one LED per row. The HT16K33 internal memory looks like // a 8x16 bit matrix (8 rows, 16 columns) for (uint8_t i=0; i<8; i++) { // draw a diagonal row of pixels matrix.displaybuffer[i] = _BV((counter+i) % 16) | _BV((counter+i+8) % 16) ; } // write the changes we just made to the display matrix.writeDisplay(); delay(100); counter++; if (counter >= 16) counter = 0; }
Resources
PDF:
https://drive.google.com/open?id=1eQ_E19XePe33VxLSHafZr_5N6ff0NGXW
Code Libraries Download:
https://drive.google.com/open?id=133xsJC5jvIkjZKpvcl5yu0Wp24m4_6kM
Get One Now
http://www.keyestudio.com/keyestudio-easy-plug-iic-i2c-8-8-le-d-dot-matrix-display-for-arduino.html