Serial.println(address,HEX); } } if (nDevices == 0) Serial.println(“No I2C devices foundn”); else Serial.println(“donen”); delay(5000); // wait 5 seconds for next scan I2C设备地址无法驱动设备的解决办法:
Serial.println(address,HEX); } } if (nDevices == 0) Serial.println("No I2C devices found "); else Serial.println("done "); delay(5000); // wait 5 seconds for next scan } 选择正确的端口和主板型号上传上述程序,上传成功之后打开串口监视器即可看到当前液晶显示屏的设备地址了,如图5所示: 图...
Serial.println(address,HEX); } } if (nDevices == 0) Serial.println("No I2C devices foundn"); else Serial.println("donen"); delay(5000); // wait 5 seconds for next scan }
If that describes you, then try running the following sketch. It will scan I2C possible addresses and report the address of the device that responds. address of the device that responds. I2C Scanner By Nick Gammon Copy, Paste, Upload and Run! // I2C Scanner// Written by Nick Gammon// Da...
void scanI2CBus(byte from_addr, byte to_addr, void(*callback)(byte address, byte result) ) { byte rc; byte data = 0; // not used, just an address to feed to twi_writeTo() for( byte addr = from_addr; addr <= to_addr; addr++ ) { ...
println(address, HEX); } delay(5); // wait 5 milliseconds before the next scan } if (nDevices == 0) Serial.println("No I2C devices found"); else Serial.println("done"); delay(5000); // wait 5 seconds for next scan } 5. 测试并调试代码以确保正确识别I2C设备地址 将上述代码上传...
println("!");nDevices++;}elseif(error==4){Serial.print("Unknow error at address0x");if(address<16)Serial.print("0");Serial.println(address,HEX);}}if(nDevices==0)Serial.println("No I2C devices found\n");elseSerial.println("done\n");delay(5000);// wait 5 seconds for next scan}...
byte error, address; int nDevices; Serial.println("I2C Scan, press reset to re-scan!"); Serial.println("Found I2C devices:"); nDevices = 0; for(address = 1; address < 127; address++ ) { // The i2c_scanner uses the return value of ...
if(address<16) Serial.print("0"); Serial.println(address,HEX); } } if(nDevices==0) Serial.println("No I2C devices found\n"); else Serial.println("done\n"); delay(5000);// wait 5 seconds for next scan } 1. 2. 3. 4. ...
print("Unknow error at address 0x"); if (address < 16) Serial.print("0"); Serial.println(address, HEX); } } if (nDevices == 0) Serial.println("No I2C devices found\n"); else Serial.println("done\n"); delay(5000); // wait 5 seconds for next scan } 3 实验结果 4 参考程序...