arduino 驱动i2c oled 显示温湿度

源码 //IIC接口只需要两根线OLED屏的VCC和GND分别连接开发板的3.3V和GND，OLED屏的SDA和SCL分别连接开发板A4和A5 #include"DHT.h" #include <Wire.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h> #define OLED_RESET 4 DHT wd1(2, DHT11);//设定dht11的一个子类并指定端口为D2，和DHT11模块 Adafruit_SSD1306 display(128, 64, &Wire,OLED_RESET);//设定一个olcd的一个子类并初始化 static const uint8_t PROGMEM wo[] = { 0x00,0x00,0x23,0xF8,0x12,0x08,0x12,0x08,0x83,0xF8,0x42,0x08,0x42,0x08,0x13,0xF8, 0x10,0x00,0x27,0xFC,0xE4,0xA4,0x24,0xA4,0x24,0xA4,0x24,0xA4,0x2F,0xFE,0x00,0x00 };//温 static const uint8_t PROGMEM ni[] = { 0x01,0x00,0x00,0x80,0x3F,0xFE,0x22,0x20,0x22,0x20,0x3F,0xFC,0x22,0x20,0x22,0x20, 0x23,0xE0,0x20,0x00,0x2F,0xF0,0x24,0x10,0x42,0x20,0x41,0xC0,0x86,0x30,0x38,0x0E };//度 static const uint8_t PROGMEM ta[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x30,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x30,0x00,0x00,0x00,0x00,0x00 };//冒号 static const uint8_t PROGMEM shi[] ={ 0x00,0x00,0x27,0xF8,0x14,0x08,0x14,0x08,0x87,0xF8,0x44,0x08,0x44,0x08,0x17,0xF8, 0x11,0x20,0x21,0x20,0xE9,0x24,0x25,0x28,0x23,0x30,0x21,0x20,0x2F,0xFE,0x00,0x00 };//湿 void setup() { wd1.begin(); display.begin(SSD1306_SWITCHCAPVCC,0x3C);//设定为i2c 0.96寸的oled模块 display.setTextColor(WHITE);//开像素点发光 display.clearDisplay();//清屏 } void loop() { wendu(); } void wendu(void){ float h = wd1.readHumidity(); float t = wd1.readTemperature(); display.clearDisplay(); // 清屏 display.drawBitmap(8,8,wo,16,16,WHITE);//温 display.drawBitmap(25,8,ni,16,16,WHITE);//度 display.drawBitmap(42,8,ta,16,16,WHITE);//冒号 // display.setTextColor(WHITE);//设置字体颜色 display.setTextSize(1);//设置字体大小 display.setCursor(59, 16);//设置显示位置 //display.println(i);//显示数字 display.print(t);//温度 //Serial.println(t);//调试 display.drawBitmap(8,25,shi,16,16,WHITE);//湿 display.drawBitmap(25,25,ni,16,16,WHITE);//度 display.drawBitmap(42,25,ta,16,16,WHITE);//冒号 display.setCursor(59, 32);//设置位置 display.print(h);//湿度 display.display();//显示 delay(1000); }

需要的库直接在arduino搜索并下载DHT sensor library 和 Adafruit_SSD1306，只要电路图连接一样代码可以直接复制烧录上电即可用