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

12 votes253 views4 answers
How to initialized a 2d vector
C++
0 vote170 views1 answer
Move assignment operator c++
C++
0 vote175 views1 answer
Swap of two numbers in c++
C++
1 vote185 views2 answers
Bool to string arduino
C++
1 vote174 views1 answer
Sort array using inbuilt sort function in decreasing order
C++
0 vote232 views1 answer
Pascal triangle using c++
C++
3 votes174 views1 answer
Convert refference to pointer c++
C++
0 vote180 views1 answer
What is xor_eq c++
C++
0 vote180 views7 answers
Online converter c++ to c
C++
0 vote172 views1 answer
SPEED c++
C++