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

0 vote198 views1 answer
Initialisation of a c++ variable
C++
1 vote186 views1 answer
How to modify set C++
C++
0 vote182 views1 answer
Not c++
C++
1 vote245 views1 answer
'std::ifstream file' has initializer but incomplete type
C++
0 vote181 views2 answers
Cplusplusbtutotrail
C++
1 vote175 views1 answer
C++ insert variable into string
C++
0 vote204 views1 answer
Day 21 generics hackerrank solution in c++
C++
0 vote212 views1 answer
Convert unsigned long to string c++
C++
0 vote211 views1 answer
C++ if else if
C++
0 vote231 views1 answer
C++ list of pairs
C++