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NicoHood / HoodLoader2

16u2 Bootloader to reprogram 16u2 + 328/2560 with Arduino IDE
http://www.nicohood.de
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Problem while converting Wire.h library for the board HoodLoader2 16u2 #55

Closed SchillocK closed 6 years ago

SchillocK commented 6 years ago

Hey, and thank you very much for providing such a great software, but now i got a problem:

Im working with an MPU-6050 sensorboard and wanted to run the basic raw data output sketch but I have compiling issues :/

Here's my error output:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_init':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:76:16: error: 'SDA' undeclared (first use in this function)

digitalWrite(SDA, 1);

            ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:76:16: note: each undeclared identifier is reported only once for each function it appears in

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:77:16: error: 'SCL' undeclared (first use in this function)

digitalWrite(SCL, 1);

            ^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:80:7: error: 'TWSR' undeclared (first use in this function)

cbi(TWSR, TWPS0);

   ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:80:3: note: in expansion of macro 'cbi'

cbi(TWSR, TWPS0);

^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:80:13: error: 'TWPS0' undeclared (first use in this function)

cbi(TWSR, TWPS0);

         ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:80:3: note: in expansion of macro 'cbi'

cbi(TWSR, TWPS0);

^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:81:13: error: 'TWPS1' undeclared (first use in this function)

cbi(TWSR, TWPS1);

         ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:81:3: note: in expansion of macro 'cbi'

cbi(TWSR, TWPS1);

^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:82:3: error: 'TWBR' undeclared (first use in this function)

TWBR = ((F_CPU / TWI_FREQ) - 16) / 2;

^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:90:3: error: 'TWCR' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);

^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:90:14: error: 'TWEN' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);

          ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:90:26: error: 'TWIE' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);

                      ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:90:38: error: 'TWEA' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);

                                  ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_disable':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:102:3: error: 'TWCR' undeclared (first use in this function)

TWCR &= ~(_BV(TWEN) | _BV(TWIE) | _BV(TWEA));

^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:102:17: error: 'TWEN' undeclared (first use in this function)

TWCR &= ~(_BV(TWEN) | _BV(TWIE) | _BV(TWEA));

             ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:102:29: error: 'TWIE' undeclared (first use in this function)

TWCR &= ~(_BV(TWEN) | _BV(TWIE) | _BV(TWEA));

                         ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:102:41: error: 'TWEA' undeclared (first use in this function)

TWCR &= ~(_BV(TWEN) | _BV(TWIE) | _BV(TWEA));

                                     ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:105:16: error: 'SDA' undeclared (first use in this function)

digitalWrite(SDA, 0);

            ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:106:16: error: 'SCL' undeclared (first use in this function)

digitalWrite(SCL, 0);

            ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_setAddress':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:118:3: error: 'TWAR' undeclared (first use in this function)

TWAR = address << 1;

^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_setFrequency':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:129:3: error: 'TWBR' undeclared (first use in this function)

TWBR = ((F_CPU / frequency) - 16) / 2;

^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_readFrom':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:187:7: error: 'TWDR' undeclared (first use in this function)

   TWDR = twi_slarw;

   ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:188:13: error: 'TWCR' undeclared (first use in this function)

 } while(TWCR & _BV(TWWC));

         ^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:188:24: error: 'TWWC' undeclared (first use in this function)

 } while(TWCR & _BV(TWWC));

                    ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:189:16: error: 'TWINT' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START

            ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:189:29: error: 'TWEA' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START

                         ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:189:41: error: 'TWEN' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START

                                     ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:189:53: error: 'TWIE' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START

                                                 ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:193:65: error: 'TWSTA' undeclared (first use in this function)

 TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA);

                                                             ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_writeTo':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:269:7: error: 'TWDR' undeclared (first use in this function)

   TWDR = twi_slarw;    

   ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:270:13: error: 'TWCR' undeclared (first use in this function)

 } while(TWCR & _BV(TWWC));

         ^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:270:24: error: 'TWWC' undeclared (first use in this function)

 } while(TWCR & _BV(TWWC));

                    ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:271:16: error: 'TWINT' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START

            ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:271:29: error: 'TWEA' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START

                         ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:271:41: error: 'TWEN' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START

                                     ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:271:53: error: 'TWIE' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START

                                                 ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:275:65: error: 'TWSTA' undeclared (first use in this function)

 TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE) | _BV(TWSTA); // enable INTs

                                                             ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_reply':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:357:5: error: 'TWCR' undeclared (first use in this function)

 TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);

 ^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:357:16: error: 'TWEN' undeclared (first use in this function)

 TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);

            ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:357:28: error: 'TWIE' undeclared (first use in this function)

 TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);

                        ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:357:40: error: 'TWINT' undeclared (first use in this function)

 TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);

                                    ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:357:53: error: 'TWEA' undeclared (first use in this function)

 TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);

                                                 ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_stop':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:372:3: error: 'TWCR' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);

^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:372:14: error: 'TWEN' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);

          ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:372:26: error: 'TWIE' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);

                      ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:372:38: error: 'TWEA' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);

                                  ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:372:50: error: 'TWINT' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);

                                              ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:372:63: error: 'TWSTO' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);

                                                           ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'twi_releaseBus':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:393:3: error: 'TWCR' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);

^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:393:14: error: 'TWEN' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);

          ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:393:26: error: 'TWIE' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);

                      ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:393:38: error: 'TWEA' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);

                                  ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:393:50: error: 'TWINT' undeclared (first use in this function)

TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);

                                              ^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\compat\twi.h:36:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:27:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c: In function 'TWI_vect':

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:401:10: error: 'TWSR' undeclared (first use in this function)

switch(TW_STATUS){

      ^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:401:10: error: 'TWS7' undeclared (first use in this function)

switch(TW_STATUS){

      ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:401:10: error: 'TWS6' undeclared (first use in this function)

switch(TW_STATUS){

      ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:401:10: error: 'TWS5' undeclared (first use in this function)

switch(TW_STATUS){

      ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:401:10: error: 'TWS4' undeclared (first use in this function)

switch(TW_STATUS){

      ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:401:10: error: 'TWS3' undeclared (first use in this function)

switch(TW_STATUS){

      ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:406:7: error: 'TWDR' undeclared (first use in this function)

   TWDR = twi_slarw;

   ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:426:4: error: 'TWCR' undeclared (first use in this function)

TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;

^

In file included from d:\program files (x86)\arduino\hardware\tools\avr\avr\include\avr\io.h:99:0,

             from D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:25:

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:426:15: error: 'TWINT' undeclared (first use in this function)

TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;

           ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:426:28: error: 'TWSTA' undeclared (first use in this function)

TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;

                        ^

D:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c:426:40: error: 'TWEN' undeclared (first use in this function)

TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;

                                    ^

exit status 1 Error compiling for board HoodLoader2 16u2.

And this is the Sketch i wrote, heavily inspired by this one: http://www.mschoeffler.de/2017/10/05/tutorial-how-to-use-the-gy-521-module-mpu-6050-breakout-board-with-the-arduino-uno/

// (c) Michael Moser 2017

include "Wire.h" // Lib for I2C communication

const int mpu_adress = 0x68; // I2C adress of the MPU-6050

int16_t acc_x, acc_y, acc_z; // Variables for accelerometer raw data int16_t gyro_x, gyro_y, gyro_z; // Variables for gyroscope raw data int16_t temp; // Variable for temperature data

char tmp_str[7]; // Temporary variable for converting function

char* convert_int16_to_str(int16_t i) // Converts int16 to string. Here used to get strings with the same length in the debug window. { sprintf(tmp_str, "%6d", i); return tmp_str; }

void setup() { Serial.begin(9600); Wire.begin(); Wire.beginTransmission(mpu_adress); // Begins a transmission to the I2C slave (MPU-6050) Wire.write(0x6B); // PWR_MGMT_1 register Wire.write(0); // set to zero (wakes up the MPU-6050) Wire.endTransmission(true);

}

void loop() { Wire.beginTransmission(mpu_adress); Wire.write(0x3B); // Starting with register 0x3B (ACCEL_XOUT_H) [Register Map and Descriptions Revision 4.2, p.40] Wire.endTransmission(false); // Arduino will send a restart, thus keeping the connection active Wire.requestFrom(mpu_adress, 72, true); // Request all 14 registers (72=14)

// Here, two registers are read and stored in the same variable acc_x = Wire.read() << 8 | Wire.read(); // reading registers: 0x3B (ACCEL_XOUT_H) and 0x3C (ACCEL_XOUT_L) acc_y = Wire.read() << 8 | Wire.read(); // reading registers: 0x3D (ACCEL_YOUT_H) and 0x3E (ACCEL_YOUT_L) acc_z = Wire.read() << 8 | Wire.read(); // reading registers: 0x3F (ACCEL_ZOUT_H) and 0x40 (ACCEL_ZOUT_L) temp = Wire.read() << 8 | Wire.read(); // reading registers: 0x41 (TEMP_OUT_H) and 0x42 (TEMP_OUT_L) gyro_x = Wire.read() << 8 | Wire.read(); // reading registers: 0x43 (GYRO_XOUT_H) and 0x44 (GYRO_XOUT_L) gyro_y = Wire.read() << 8 | Wire.read(); // reading registers: 0x45 (GYRO_YOUT_H) and 0x46 (GYRO_YOUT_L) gyro_z = Wire.read() << 8 | Wire.read(); // reading registers: 0x47 (GYRO_ZOUT_H) and 0x48

//Data is printed to the Debug Window Serial.print(" | aX = "); Serial.print(convert_int16_to_str(acc_x)); Serial.print(" | aY = "); Serial.print(convert_int16_to_str(acc_y)); Serial.print(" | aZ = "); Serial.print(convert_int16_to_str(acc_z)); Serial.print(" | gX = "); Serial.print(convert_int16_to_str(gyro_x)); Serial.print(" | gY = "); Serial.print(convert_int16_to_str(gyro_y)); Serial.print(" | gZ = "); Serial.print(convert_int16_to_str(gyro_z)); Serial.print(" | tmp = "); Serial.print(temp/340.00+36.53); Serial.println();

delay(1000);

}

I really hope you can help me with this and that i don't annoy you with a possibly very simple problem. I just recently started working with the Arduino Uno R3 and have no previous experience but a lot of motivation. ^^

Greetings, Mike.

NicoHood commented 6 years ago

The 16u2 has no I2C interface. Only Serial and SPI as far as I know. You possibly also missunderstood how Hoodloader2 works, so please check the docs again. You are dealing with 2 Microcontrollers now.