Wire.begin(SLAVE_ADDRESS); // join I2C bus as a slave with address 0x12 } void loop() { }[/code] i2c地址扫瞄 slave 建立後,就要看看 master 如果找到它了。 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...
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 address. Wire.beginTransmission(address); error = Wire.endTransmission(); if (error == 0) { Serial.print("I2C devi...
1、将一个I2C器件连接至arduino的SDA、SCL引脚(UNO R3 连接A4、A5) 2、将如下代码烧入arduino,打开串口界面即可得到I2C设备的地址。 #include <Wire.h> void setup() { Wire.begin(); Serial.begin(9600); Serial.println("nI2C Scanner"); } void loop() { byte error, address; int nDevices; Serial...
Serial.println("I2C Scanner started");Serial.println();} voidloop(){ uint8_t error, i2cAddres...
Serial.print(end_address,DEC); Serial.println("..."); Serial.println(); // start the scan, will call "scanFunc()" on result from each address scanI2CBus( start_address, end_address, scanFunc ); Serial.print("\n"); Serial.println("--- I2C Bus Scanner Complete ---"); ...
编辑于 2023年03月16日 14:58 #include<Arduino.h>#include<Wire.h>//ADDR pin/* GND --> 0x5A VCC --> 0x5B SDA --> 0x5C SCL --> 0x5D */voidsetup(){Wire.begin();Serial.begin(115200);Serial.println("\nI2C Scanner");}voidloop(){byte error,address;intnDevices;Serial.println("...
address of the device that responds. I2C Scanner By Nick Gammon Copy, Paste, Upload and Run! // I2C Scanner// Written by Nick Gammon// Date: 20th April 2011 #include <Wire.h>voidsetup() {Serial.begin (115200);// Leonardo: wait for serial port to connectwhile (!Serial) ...
//“ Wire.h”库允许微控制器与I2C设备通信。因此,每当您要使用I2C通信时,该库都是必不可少的。 voidsetup(){ Serial.begin(115200);while(!Serial){}//Waiting for serial connectionSerial.println(); Serial.println("Start I2C scanner ..."); ...
以下是一个简单的Arduino代码示例,用于扫描I2C总线上的设备并打印出它们的地址: cpp #include <Wire.h> void setup() { Serial.begin(115200); while (!Serial); // Leonardo: wait for serial monitor Serial.println("I2C Scanner"); } void loop() { byte error, address; int nDevices = 0...
println("nI2C Scanner"); } void loop() { // put your main code here, to run repeatedly: byte error, address; int nDevices; Serial.println("Scanning..."); nDevices = 0; for(address = 1; address <127; address++ ) { Wire.beginTransmission(address); error = Wire.endTransmission();...