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 vote195 views1 answer
Get bitshift to wrap c++
C++
1 vote219 views1 answer
Non stoichiometric nacl is yellow
C++
2 votes192 views1 answer
C++ get file content
C++
-3 votes222 views2 answers
Virtual function in C++
C++
1 vote151 views1 answer
How to set environment variable for c++
C++
0 vote183 views1 answer
Ordine crescente "senza" vettori in c++
C++
-1 vote177 views1 answer
How to array in c++
C++
1 vote178 views1 answer
Unclebigbay
C++
0 vote293 views1 answer
Print each number of digit c++
C++
9 votes235 views2 answers
Sort vector in reverse order c++
C++