TCA9548 I2CScanner Arduino

/**
 * TCA9548 I2CScanner.ino -- I2C bus scanner for Arduino
 *
 * Based on https://playground.arduino.cc/Main/I2cScanner/
 *
 */

#include "Wire.h"

#define TCAADDR 0x70

void tcaselect(uint8_t i) {
  if (i > 7) return;
 
  Wire.beginTransmission(TCAADDR);
  Wire.write(1 << i);
  Wire.endTransmission();  
}


// standard Arduino setup()
void setup()
{
    while (!Serial);
    delay(1000);

    Wire.begin();
    
    Serial.begin(115200);
    Serial.println("\nTCAScanner ready!");
    
    for (uint8_t t=0; t<8; t++) {
      tcaselect(t);
      Serial.print("TCA Port #"); Serial.println(t);

      for (uint8_t addr = 0; addr<=127; addr++) {
        if (addr == TCAADDR) continue;

        Wire.beginTransmission(addr);
        if (!Wire.endTransmission()) {
          Serial.print("Found I2C 0x");  Serial.println(addr,HEX);
        }
      }
    }
    Serial.println("\ndone");
}

void loop() 
{
}

Source: learn.adafruit.com

Similar codes

-1 vote156 views1 answer
How to write hello world c++
C++
2 votes128 views2 answers
How to check if java is installed on windows 10
C++
1 vote182 views1 answer
Tarray ue4 c++
C++
26 votes176 views2 answers
Remove element from vector on condition c++
C++
1 vote132 views1 answer
Copy a part of a vector in another in c++
C++
0 vote168 views1 answer
Fisher–Yates shuffle Algorithm c++
C++
0 vote134 views1 answer
C++ cout iostream
C++
0 vote107 views1 answer
Properties of loop in c++ and how it works
C++
21 votes154 views6 answers
Cin c++
C++
1 vote154 views2 answers
C++ display numbers as binary
C++