// 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() {...
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...
A code to find the unknown I2C address of a follower device from Silicon Laboratories EFM32 and EFR32 devices. Mar 8, 2022 Knowledge Details The main purpose of this article is how to find the unknown I2C address of a follower device from Silicon Laboratories EFM32 and EFR32 devices. What...
#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(); ...
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) ...
Copy the files i2cscanner.h and i2cscanner.cpp to the newly created i2cscanner directory. Load the pde and run Using The Library Listing 1 contains the code of a demo PDE that tests the different methods of the class. The method I2CScanBus::isAddressOnBus(byte address) has been very hel...
Arduino/ESP8266与其他设备通信，例如OLED显示器、气压传感器等，可以使用I2C通信协议。也可以使用两外两个...
i2c_scanner 使用“Write. 然后仅当地址<16 时才将特定地址打印到串行监视器。这里我们以十六进制打印地址。打印指令为“Serial.print(address, HEX)”。并计算设备。然后仅当地址<16 时才将特定地址打印到串行监视器。这里我们以十六进制打印地址。打印指令为“Serial.print(address, HEX)”。并计算设备。完整的 ...