点亮一个IIC的8x8点阵模块
2019-01-141.8万
AI 快速预览详细
本文介绍了如何使用Arduino UNO连接合泰16k33 IIC点阵驱动模块，点亮一个8x8点阵。通过具体的硬件连接图和代码示例，展示了如何显示笑脸、哭脸及滚动文本。整个过程简单易懂，适合初学者快速上手。
大家好，今天给大家介绍怎么点亮一个IIC的点阵。平常大家见的最多的是MAX7219点阵模块。相比较而言，IIC的点阵更方便。下面给大家介绍的是合泰的16k33点阵驱动模块和Arduino UNO连接后。点亮一个8x8的点阵。  下面是合泰的点阵驱动  下面是连线图  因为是IIC的驱动，因此只需要连4根线。SDA-A4.SCL-A5。VCC-VCC，GND-GND  [mw_shl_code=applescript,true]#include <Wire.h> #include <Adafruit_GFX.h> #include "Adafruit_LEDBackpack.h" Adafruit_8x8matrix matrix = Adafruit_8x8matrix(); void setup() { Serial.begin(9600); Serial.println("8x8 LED Matrix Test"); matrix.begin(0x70); // pass in the address } static const uint8_t PROGMEM smile_bmp[] = { B00111100, B01000010, B10100101, B10000001, B10100101, B10011001, B01000010, B00111100 }, frown_bmp[] = { B00111100, B01000010, B10100101, B10000001, B10011001, B10100101, B01000010, B00111100 }; void loop() { matrix.clear(); matrix.drawBitmap(0, 0, smile_bmp, 8, 8, LED_ON); matrix.writeDisplay(); delay(1000); matrix.clear(); matrix.drawBitmap(0, 0, frown_bmp, 8, 8, LED_ON); matrix.writeDisplay(); delay(1000); matrix.clear(); // clear display matrix.setTextSize(1); matrix.setTextWrap(false); // we dont want text to wrap so it scrolls nicely matrix.setTextColor(LED_ON); for (int8_t x=0; x>=-36; x--) { matrix.clear(); matrix.setCursor(x,0); matrix.print("GADA888"); matrix.writeDisplay(); delay(100); } matrix.setRotation(2); for (int8_t x=7; x>=-36; x--) { matrix.clear(); matrix.setCursor(x,0); matrix.print("GADA888"); matrix.writeDisplay(); delay(100); } matrix.setRotation(0); } [/mw_shl_code] 记得加入运行库 |
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