// For: https://forum.arduino.cc/t/using-the-wire-readbytes/997313

#include <Wire.h>

byte buffer[20];

void setup() 
{
  Serial.begin( 115200);
  Serial.println( "Testing timeout with a bug in the code...");

  Wire.begin();
  Wire.setTimeout( 3000);         // default 1 second, let's make it 3 for fun.
  
  Wire.beginTransmission( 0x68);
  Wire.write( 0x00);
  Wire.endTransmission();

  unsigned long t1 = millis();

  // Better code could be:
  //   Wire.requestFrom( 0x68, 5);
  //   if( Wire.available() == 5)
  // Or shorter:
  //   if( Wire.requestFrom( 0x68, 5) == 5)
  // 

  Wire.requestFrom( 0x68, 5);
  if( Wire.available() > 0)      // I do not agree with this code line
  {
    Wire.readBytes( buffer, 6);  // use a bug, read 6 when there are only 5 !
  }

  unsigned long t2 = millis();
  
  unsigned long elapsedMillis = t2 - t1;
  Serial.print( "The code with the bug took ");
  Serial.print( (float) elapsedMillis / 1000.0);
  Serial.println( " seconds.");
}

void loop() {}