i2c scanner可以说是 master 板子的最基本例子,可以用作测试线路上连接了的设备的存在(只测试存在性,并非测试其功能)。 i2c_scanner 其实也很简单, 由 master 向所有地址发出 beginTransmission 再 endTransmission, 尝试建立连线。 在 beignTransmission 中输入 slave 的地址, 就可以测试该地址的装置了。 如果error =...
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...
I2C Scanner is a simple sketch that scans the I2C-Bus for devices. You can upload the code to your Arduino to find out the I2C address of the modules. Upload the below sketch and open the Serial Monitor to view results: #include <Wire.h>void setup(){ Wire.begin(); Serial.begin(9600...
问STM32 I2C扫描返回与Arduino不同的地址EN某个应用最近总出现死锁，其中一些是因为报了索引和数据行存在...
// but in this case, my LCD uses address 0x27, so I will have a // conflicting address if I were to use 8 of them together with the // LCD PCF8574 Remote_1(0x20); PCF8574 Remote_2(0x21); // Note the I2C addresses. You can obtain them from the i2c_scanner void setup(...
// standard Arduino setup() void setup() { pinMode(13,OUTPUT); Wire.begin(); Serial.begin(9600); Serial.println("--- I2C Bus Scanner Test ---"); Serial.print("starting scanning of I2C bus from "); Serial.print(start_address,DEC); ...
Serial.println("\nI2C Scanner"); }voidloop() {byteerror, address;intnDevices; Serial.println("Scanning..."); nDevices=0;for(address =1; address <127; address++) {//The i2c_scanner uses the return value of//the Write.endTransmisstion to see if//a device did acknowledge to the addr...
安装库后,重新启动 Arduino IDE。 使用ESP8266 测试 OLED 显示屏 将OLED 显示屏连接到 ESP8266 并安装所有必需的库后,可以使用库中的一个示例查看一切是否正常工作。 在Arduino IDE 中,转到文件>示例>Adafruit SSD1306,然后选择您正在使用的显示器的示例。
One thought on “I2C Bus Scanner” Jason on December 12, 2013 at 12:59 am said: Hey there. I ran the demo and I am getting: In file included from I2CBusScannerDemo.pde:2: C:\Users\Jason\Documents\Arduino\libraries\i2cscanner/i2cscanner.h:61: error: ‘byte’ has not been declare...
问MPU6050，没有发现I2C设备，arduino纳米EN您将AD0连接到地面，从而将设备的地址更改为0x68而不是0x69...