); byte error, address; int nDevices; nDevices = 0; for(address = 1; address < 127; address++ ) { // The i2c_scanner uses the Wire.beginTransmission(address) // method to see if there is an I2C device at the address. // Wire.beginTransmission(address); error = Wire....
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...
Serial.println("I2C Scanner started");Serial.println();} voidloop(){ uint8_t error, i2cAddres...
// 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 device found at address 0x"); if (address<16) Serial...
I2C scanner 32-bit Microcontroller (MCU) I2C scanner A code to find the unknown I2C address of a follower device from Silicon Laboratories EFM32 and EFR32 devices. Mar 8, 2022 Knowledge 32-bit Microcontroller (MCU)
// 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() { // serial debugging if needed ...
//“ 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 ..."); ...
println("I2C Scanner"); } void loop() { byte error, address; int nDevices; SerialUSB.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 ...
#include<Wire.h>voidsetup(){Wire.begin();Serial.begin(9600);Serial.println("\nI2C Scanner");}voidloop(){byte error,address;int nDevices;Serial.println("Scanning...");nDevices=0;for(address=1;address<127;address++){// The i2c_scanner uses the return value of// the Write.endTransmiss...
Serial.println("\nI2C Scanner"); Serial.println("Scanning..."); delay(2000); } voidloop() { intnDevices; nDevices = 0; byte error, address; for(address = 1; address < 127; address++ ) { Wire.beginTransmission(address); error = Wire.endTransmission(); ...