// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins) #define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin) Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); #define bitmap_height 128 #define bitmap_width 64 static ...
(SDA, SCL pins) #define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin) Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); #define bitmap_height 128 #define bitmap_width 64 static const unsigned char PROGMEM logo_bmp[] = { 0x00, 0x...
#define SCREEN_HEIGHT 64 // OLED display height, in pixels // Declaration for an SSD1306 display connected to I2C (SDA, SCL pins) // The pins for I2C are defined by the Wire-library. // On an arduino UNO: A4(SDA), A5(SCL) // On an arduino MEGA 2560: 20(SDA), 21(SCL) //...
在本次测试使用的程序中,为了避免调用步进电机而造成的进程阻塞,将控制步进电机的程序交给下位机(Arduino Nano)处理,输出引脚为板上的SDA、SCL下位机的输入引脚为:SDA>>PD4,SCL>>PD5 6.调试与测试结果 由于测温组件缺货原因,我借用了朋友的MLX90640,由因为该传感器的通信波特率太高,无法适配,于是决定用电脑模拟...
6路模拟输入A0到A5：每一路具有10位的分辨率（即输入有1024个不同值），默认输入信号范围为0到5V，可以通过AREF调整输入上限。除此之外，有些引脚有特定功能 TWI接口（SDA A4和SCL A5）：支持通信接口（兼容I2C总线）。
These pins are connected to the corresponding pins of the FTDI USB-to-TTL Serial chip.I2CAnalog pins A4 (SDA) and A5 (SCL) support I2C (TWI) communication using the Wire library. This library can be used to communicate between the Arduino Nano and sensors, displays, other Arduino boards,...
硬件有的 swi，软件也可以模拟i2c。
在void setup()函数中，首先在Arduino Nano的引脚A4（SDA）和A5（SCL）上开始I2C通信：Wire.begin();...
在Arduino/ESP8266上,您将找到用于I2C通信的两个GPIO(SDA和SCL)。 如果不确定是否找到相应的引脚,请参见以下图片 ESP8266(NodeMCU):SDA:D2(I2C->数据);SCL:D1(I2C->时钟) Arduino Nano开发板:SDA:A4;SCL:A5 I2C通信所需的两个引脚如下: SDA(串行数据):主站和从站之间的连接,用于发送和接收数据。
I2C: 4 (SDA) and 5 (SCL). Support I2C (TWI) communication using the Wire library (documentation on the Wiring website). There are a couple of other pins on the board: AREF. Reference voltage for the analog inputs. Used with analogReference(). Reset. Bring this line LOW to reset...