Could not connect to MPU9250: 0xFF

kriswiner / MPU9250

Arduino sketches for MPU9250 9DoF with AHRS sensor fusion

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Could not connect to MPU9250: 0xFF #206

Open Sandaruwanims opened 6 years ago

Sandaruwanims commented 6 years ago

Hi, I brought a MPU9250 - https://www.addicore.com/mpu-9250-p/ad280.htm and use your library with arduino mega 2560. I upload https://github.com/kriswiner/MPU9250/blob/master/MPU9250BasicAHRS.ino arduino program but it gave below output : MPU9250 I AM FF I should be 71 Could not connect to MPU9250: 0xFF I also check with I2C scan and it gave below lines : Scanning... I2C device found at address 0x68 ! done

Arduino connection with mpu9250 like below: mpu9250 arduino mega2560 VDD ---------------------- 3.3V SDA ----------------------- SDA SCL ----------------------- SCL GND ---------------------- GND

Could you help me to get this work?

kriswiner commented 6 years ago

Pull NCS HIGH.

On Tue, Nov 14, 2017 at 3:20 AM, Milinda Sandaruwan < notifications@github.com> wrote:

Hi, I brought a MPU9250 - https://www.addicore.com/mpu-9250-p/ad280.htm and use your library with arduino mega 2560. I upload https://github.com/kriswiner/MPU9250/blob/master/MPU9250BasicAHRS.ino arduino program but it gave below output : MPU9250 I AM FF I should be 71 Could not connect to MPU9250: 0xFF I also check with I2C scan and it gave below lines : Scanning... I2C device found at address 0x68 ! done

Arduino connection with mpu9250 like below: mpu9250 arduino mega2560 VDD ---------------------- 3.3V SDA ----------------------- SDA SCL ----------------------- SCL GND ---------------------- GND

Could you help me to get this work?

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Sandaruwanims commented 6 years ago

Hi kriswiner, Thank you for your help. I pulled up NCS, SCL and SDA with 3.3v. Then It gave below output. MPU9250 I AM 73 I should be 71 Could not connect to MPU9250: 0x73

After that I change -> if (c == 0x71) // WHO_AM_I should always be 0x68 in to -> if (c == 0x73) // WHO_AM_I should always be 0x68

Then it works but YPR data are not accurate(means it change YPR even not moving) also data rate is very low like below.

        " rate = 159.21 Hz
          Yaw, Pitch, Roll: 2.42, -0.01, 0.15
          rate = 159.50 Hz
          Yaw, Pitch, Roll: 1.67, -0.22, 0.66
          rate = 159.01 Hz
          Yaw, Pitch, Roll: 2.01, -0.19, 0.64
          rate = 159.46 Hz
          Yaw, Pitch, Roll: 2.67, -0.28, 0.13
          rate = 159.44 Hz
          Yaw, Pitch, Roll: 1.89, -0.16, 0.46
          rate = 158.94 Hz
          Yaw, Pitch, Roll: 2.26, 0.06, -0.30
          rate = 159.62 Hz
          Yaw, Pitch, Roll: 3.43, -0.03, 0.07
          rate = 159.12 Hz
          Yaw, Pitch, Roll: 2.70, 0.01, -0.23"

Could you please help me to solve this. Also I tried to use https://github.com/kriswiner/MPU9250/blob/master/MPU9250_MS5637_AHRS_t3.ino for the sensor calibration. But I couldn't to compile it properly. It gave more errors like

error: 'I2C_MASTER' was not declared in this scope Wire.begin(I2C_MASTER, 0x00, I2C_PINS_16_17, I2C_PULLUP_EXT, I2C_RATE_400);

How I solved this? Thank you very much for your help.

kriswiner commented 6 years ago

What MCU are you using? I suspect you need one of these:

https://www.tindie.com/products/TleraCorp/ladybug-stm32l432-development-board/

The yaw looks fine, I would expect you just need some calibration and a faster MCU.

You will have to rewrite the Wire calls since that sketch uses i2c_t3.h which is specific to the Teensy.

On Tue, Dec 12, 2017 at 11:21 PM, Milinda Sandaruwan < notifications@github.com> wrote:

Hi kriswiner, Thank you for your help. I pulled up NCS, SCL and SDA with 3.3v. Then It gave below output. MPU9250 I AM 73 I should be 71 Could not connect to MPU9250: 0x73

After that I change -> if (c == 0x71) // WHO_AM_I should always be 0x68 in to -> if (c == 0x73) // WHO_AM_I should always be 0x68

Then it works but YPR data are not accurate(means it change YPR even not moving) also data rate is very low like below.
    " rate = 159.21 Hz
      Yaw, Pitch, Roll: 2.42, -0.01, 0.15
      rate = 159.50 Hz
      Yaw, Pitch, Roll: 1.67, -0.22, 0.66
      rate = 159.01 Hz
      Yaw, Pitch, Roll: 2.01, -0.19, 0.64
      rate = 159.46 Hz
      Yaw, Pitch, Roll: 2.67, -0.28, 0.13
      rate = 159.44 Hz
      Yaw, Pitch, Roll: 1.89, -0.16, 0.46
      rate = 158.94 Hz
      Yaw, Pitch, Roll: 2.26, 0.06, -0.30
      rate = 159.62 Hz
      Yaw, Pitch, Roll: 3.43, -0.03, 0.07
      rate = 159.12 Hz
      Yaw, Pitch, Roll: 2.70, 0.01, -0.23"
Could you please help me to solve this. Also I tried to use https://github.com/kriswiner/MPU9250/blob/master/MPU9250_ MS5637_AHRS_t3.ino for the sensor calibration. But I couldn't to compile it properly. It gave more errors like

error: 'I2C_MASTER' was not declared in this scope Wire.begin(I2C_MASTER, 0x00, I2C_PINS_16_17, I2C_PULLUP_EXT, I2C_RATE_400);

How I solved this? Thank you very much for your help.

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Sandaruwanims commented 6 years ago

Thanks for your quick reply. I'm using Arduino nano ATmega328 board.

kriswiner commented 6 years ago

16 MHz AVR will not be able to fuse the data fast enough for any kind of accuracy.

On Wed, Dec 13, 2017 at 7:23 PM, Milinda Sandaruwan < notifications@github.com> wrote:

Thanks for your quick reply. I'm using Arduino nano ATmega328 board.

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Mustafakyuz commented 3 years ago

Hi kriswiner, Thank you for your help. I pulled up NCS, SCL and SDA with 3.3v. Then It gave below output. MPU9250 I AM 73 I should be 71 Could not connect to MPU9250: 0x73

After that I change -> if (c == 0x71) // WHO_AM_I should always be 0x68 in to -> if (c == 0x73) // WHO_AM_I should always be 0x68

Then it works but YPR data are not accurate(means it change YPR even not moving) also data rate is very low like below.
        " rate = 159.21 Hz
          Yaw, Pitch, Roll: 2.42, -0.01, 0.15
          rate = 159.50 Hz
          Yaw, Pitch, Roll: 1.67, -0.22, 0.66
          rate = 159.01 Hz
          Yaw, Pitch, Roll: 2.01, -0.19, 0.64
          rate = 159.46 Hz
          Yaw, Pitch, Roll: 2.67, -0.28, 0.13
          rate = 159.44 Hz
          Yaw, Pitch, Roll: 1.89, -0.16, 0.46
          rate = 158.94 Hz
          Yaw, Pitch, Roll: 2.26, 0.06, -0.30
          rate = 159.62 Hz
          Yaw, Pitch, Roll: 3.43, -0.03, 0.07
          rate = 159.12 Hz
          Yaw, Pitch, Roll: 2.70, 0.01, -0.23"
Could you please help me to solve this. Also I tried to use https://github.com/kriswiner/MPU9250/blob/master/MPU9250_MS5637_AHRS_t3.ino for the sensor calibration. But I couldn't to compile it properly. It gave more errors like

error: 'I2C_MASTER' was not declared in this scope Wire.begin(I2C_MASTER, 0x00, I2C_PINS_16_17, I2C_PULLUP_EXT, I2C_RATE_400);

How I solved this? Thank you very much for your help.

Hi Kris, thanks for your informations. I implemented Sandaruwanims's steps. But my Data is not changing when I move sensor. I dont know why not changing. Please look my data and help me. Thanks for everything. Serial monitor:

AK8963 I AM FF I should be 48 AK8963 initialized for active data mode.... X-Axis sensitivity adjustment value 0.50 Y-Axis sensitivity adjustment value 0.50 Z-Axis sensitivity adjustment value 0.50 ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 0.15 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 534.67 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.31 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.33 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.40 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 532.98 Hz

My schematic of sensor and arduino: https://www.google.com/imgres?imgurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Ffiles%2Fwiring-mpu-9250-arduino-mega.png&imgrefurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Fmpu-9250-and-arduino-9-axis-imu%2F&tbnid=XbDOOtWE_R26EM&vet=12ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ..i&docid=Q56smhwHlIBmgM&w=1024&h=637&q=Schematic%20of%20mpu-9250%20and%20Arduino%20Mega&ved=2ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ

kriswiner commented 3 years ago

Looks like you are not connect with the device via I2C:

AK8963 I AM FF I should be 48

On Tue, Jun 15, 2021 at 5:31 PM Mustafakyuz @.***> wrote:

Hi kriswiner, Thank you for your help. I pulled up NCS, SCL and SDA with 3.3v. Then It gave below output. MPU9250 I AM 73 I should be 71 Could not connect to MPU9250: 0x73

After that I change -> if (c == 0x71) // WHO_AM_I should always be 0x68 in to -> if (c == 0x73) // WHO_AM_I should always be 0x68

Then it works but YPR data are not accurate(means it change YPR even not moving) also data rate is very low like below.
    " rate = 159.21 Hz
      Yaw, Pitch, Roll: 2.42, -0.01, 0.15
      rate = 159.50 Hz
      Yaw, Pitch, Roll: 1.67, -0.22, 0.66
      rate = 159.01 Hz
      Yaw, Pitch, Roll: 2.01, -0.19, 0.64
      rate = 159.46 Hz
      Yaw, Pitch, Roll: 2.67, -0.28, 0.13
      rate = 159.44 Hz
      Yaw, Pitch, Roll: 1.89, -0.16, 0.46
      rate = 158.94 Hz
      Yaw, Pitch, Roll: 2.26, 0.06, -0.30
      rate = 159.62 Hz
      Yaw, Pitch, Roll: 3.43, -0.03, 0.07
      rate = 159.12 Hz
      Yaw, Pitch, Roll: 2.70, 0.01, -0.23"
Could you please help me to solve this. Also I tried to use https://github.com/kriswiner/MPU9250/blob/master/MPU9250_MS5637_AHRS_t3.ino for the sensor calibration. But I couldn't to compile it properly. It gave more errors like

error: 'I2C_MASTER' was not declared in this scope Wire.begin(I2C_MASTER, 0x00, I2C_PINS_16_17, I2C_PULLUP_EXT, I2C_RATE_400);

How I solved this? Thank you very much for your help.

Hi Kris, thanks for your informations. I implemented Sandaruwanims's steps. But my Data is not changing when I move sensor. I dont know why not changing. Please look my data and help me. Thanks for everything. Serial monitor:

AK8963 I AM FF I should be 48 AK8963 initialized for active data mode.... X-Axis sensitivity adjustment value 0.50 Y-Axis sensitivity adjustment value 0.50 Z-Axis sensitivity adjustment value 0.50 ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 0.15 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 534.67 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.31 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.33 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.40 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 532.98 Hz

My schematic of sensor and arduino:

https://www.google.com/imgres?imgurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Ffiles%2Fwiring-mpu-9250-arduino-mega.png&imgrefurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Fmpu-9250-and-arduino-9-axis-imu%2F&tbnid=XbDOOtWE_R26EM&vet=12ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ..i&docid=Q56smhwHlIBmgM&w=1024&h=637&q=Schematic%20of%20mpu-9250%20and%20Arduino%20Mega&ved=2ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ

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Mustafakyuz commented 3 years ago

Looks like you are not connect with the device via I2C: AK8963 I AM FF I should be 48 … On Tue, Jun 15, 2021 at 5:31 PM Mustafakyuz @.***> wrote: Hi kriswiner, Thank you for your help. I pulled up NCS, SCL and SDA with 3.3v. Then It gave below output. MPU9250 I AM 73 I should be 71 Could not connect to MPU9250: 0x73 After that I change -> if (c == 0x71) // WHO_AM_I should always be 0x68 in to -> if (c == 0x73) // WHO_AM_I should always be 0x68 Then it works but YPR data are not accurate(means it change YPR even not moving) also data rate is very low like below. " rate = 159.21 Hz Yaw, Pitch, Roll: 2.42, -0.01, 0.15 rate = 159.50 Hz Yaw, Pitch, Roll: 1.67, -0.22, 0.66 rate = 159.01 Hz Yaw, Pitch, Roll: 2.01, -0.19, 0.64 rate = 159.46 Hz Yaw, Pitch, Roll: 2.67, -0.28, 0.13 rate = 159.44 Hz Yaw, Pitch, Roll: 1.89, -0.16, 0.46 rate = 158.94 Hz Yaw, Pitch, Roll: 2.26, 0.06, -0.30 rate = 159.62 Hz Yaw, Pitch, Roll: 3.43, -0.03, 0.07 rate = 159.12 Hz Yaw, Pitch, Roll: 2.70, 0.01, -0.23" Could you please help me to solve this. Also I tried to use https://github.com/kriswiner/MPU9250/blob/master/MPU9250_MS5637_AHRS_t3.ino for the sensor calibration. But I couldn't to compile it properly. It gave more errors like error: 'I2C_MASTER' was not declared in this scope Wire.begin(I2C_MASTER, 0x00, I2C_PINS_16_17, I2C_PULLUP_EXT, I2C_RATE_400); How I solved this? Thank you very much for your help. Hi Kris, thanks for your informations. I implemented Sandaruwanims's steps. But my Data is not changing when I move sensor. I dont know why not changing. Please look my data and help me. Thanks for everything. Serial monitor: AK8963 I AM FF I should be 48 AK8963 initialized for active data mode.... X-Axis sensitivity adjustment value 0.50 Y-Axis sensitivity adjustment value 0.50 Z-Axis sensitivity adjustment value 0.50 ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 0.15 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 534.67 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.31 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.33 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.40 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 532.98 Hz ------------------------------ My schematic of sensor and arduino: https://www.google.com/imgres?imgurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Ffiles%2Fwiring-mpu-9250-arduino-mega.png&imgrefurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Fmpu-9250-and-arduino-9-axis-imu%2F&tbnid=XbDOOtWE_R26EM&vet=12ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ..i&docid=Q56smhwHlIBmgM&w=1024&h=637&q=Schematic%20of%20mpu-9250%20and%20Arduino%20Mega&ved=2ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#206 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABTDLKWK4KVFQL7ZBGG635TTS7WFJANCNFSM4EDUXOOA .

Thanks for your quick reply. What can I do for connecting with the device via I2C?

kriswiner commented 3 years ago

Connect 3V3 and GND, then SDA and SCL. What devices do you see in an I2C scan?

On Tue, Jun 15, 2021 at 5:43 PM Mustafakyuz @.***> wrote:

Looks like you are not connect with the device via I2C: AK8963 I AM FF I should be 48 … <#m1555925632857049092> On Tue, Jun 15, 2021 at 5:31 PM Mustafakyuz @.***> wrote: Hi kriswiner, Thank you for your help. I pulled up NCS, SCL and SDA with 3.3v. Then It gave below output. MPU9250 I AM 73 I should be 71 Could not connect to MPU9250: 0x73 After that I change -> if (c == 0x71) // WHO_AM_I should always be 0x68 in to -> if (c == 0x73) // WHO_AM_I should always be 0x68 Then it works but YPR data are not accurate(means it change YPR even not moving) also data rate is very low like below. " rate = 159.21 Hz Yaw, Pitch, Roll: 2.42, -0.01, 0.15 rate = 159.50 Hz Yaw, Pitch, Roll: 1.67, -0.22, 0.66 rate = 159.01 Hz Yaw, Pitch, Roll: 2.01, -0.19, 0.64 rate = 159.46 Hz Yaw, Pitch, Roll: 2.67, -0.28, 0.13 rate = 159.44 Hz Yaw, Pitch, Roll: 1.89, -0.16, 0.46 rate = 158.94 Hz Yaw, Pitch, Roll: 2.26, 0.06, -0.30 rate = 159.62 Hz Yaw, Pitch, Roll: 3.43, -0.03, 0.07 rate = 159.12 Hz Yaw, Pitch, Roll: 2.70, 0.01, -0.23" Could you please help me to solve this. Also I tried to use https://github.com/kriswiner/MPU9250/blob/master/MPU9250_MS5637_AHRS_t3.ino for the sensor calibration. But I couldn't to compile it properly. It gave more errors like error: 'I2C_MASTER' was not declared in this scope Wire.begin(I2C_MASTER, 0x00, I2C_PINS_16_17, I2C_PULLUP_EXT, I2C_RATE_400); How I solved this? Thank you very much for your help. Hi Kris, thanks for your informations. I implemented Sandaruwanims's steps. But my Data is not changing when I move sensor. I dont know why not changing. Please look my data and help me. Thanks for everything. Serial monitor: AK8963 I AM FF I should be 48 AK8963 initialized for active data mode.... X-Axis sensitivity adjustment value 0.50 Y-Axis sensitivity adjustment value 0.50 Z-Axis sensitivity adjustment value 0.50 ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 0.15 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 534.67 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.31 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.33 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.40 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 532.98 Hz ------------------------------ My schematic of sensor and arduino: https://www.google.com/imgres?imgurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Ffiles%2Fwiring-mpu-9250-arduino-mega.png&imgrefurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Fmpu-9250-and-arduino-9-axis-imu%2F&tbnid=XbDOOtWE_R26EM&vet=12ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ..i&docid=Q56smhwHlIBmgM&w=1024&h=637&q=Schematic%20of%20mpu-9250%20and%20Arduino%20Mega&ved=2ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#206 (comment) https://github.com/kriswiner/MPU9250/issues/206#issuecomment-861921308>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABTDLKWK4KVFQL7ZBGG635TTS7WFJANCNFSM4EDUXOOA .

Thanks for your quick reply. What can I do for connecting with the device via I2C?

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Mustafakyuz commented 3 years ago

Connect 3V3 and GND, then SDA and SCL. What devices do you see in an I2C scan? On Tue, Jun 15, 2021 at 5:43 PM Mustafakyuz @.> wrote: … Looks like you are not connect with the device via I2C: AK8963 I AM FF I should be 48 … <#m1555925632857049092> On Tue, Jun 15, 2021 at 5:31 PM Mustafakyuz @.> wrote: Hi kriswiner, Thank you for your help. I pulled up NCS, SCL and SDA with 3.3v. Then It gave below output. MPU9250 I AM 73 I should be 71 Could not connect to MPU9250: 0x73 After that I change -> if (c == 0x71) // WHO_AM_I should always be 0x68 in to -> if (c == 0x73) // WHO_AM_I should always be 0x68 Then it works but YPR data are not accurate(means it change YPR even not moving) also data rate is very low like below. " rate = 159.21 Hz Yaw, Pitch, Roll: 2.42, -0.01, 0.15 rate = 159.50 Hz Yaw, Pitch, Roll: 1.67, -0.22, 0.66 rate = 159.01 Hz Yaw, Pitch, Roll: 2.01, -0.19, 0.64 rate = 159.46 Hz Yaw, Pitch, Roll: 2.67, -0.28, 0.13 rate = 159.44 Hz Yaw, Pitch, Roll: 1.89, -0.16, 0.46 rate = 158.94 Hz Yaw, Pitch, Roll: 2.26, 0.06, -0.30 rate = 159.62 Hz Yaw, Pitch, Roll: 3.43, -0.03, 0.07 rate = 159.12 Hz Yaw, Pitch, Roll: 2.70, 0.01, -0.23" Could you please help me to solve this. Also I tried to use https://github.com/kriswiner/MPU9250/blob/master/MPU9250_MS5637_AHRS_t3.ino for the sensor calibration. But I couldn't to compile it properly. It gave more errors like error: 'I2C_MASTER' was not declared in this scope Wire.begin(I2C_MASTER, 0x00, I2C_PINS_16_17, I2C_PULLUP_EXT, I2C_RATE_400); How I solved this? Thank you very much for your help. Hi Kris, thanks for your informations. I implemented Sandaruwanims's steps. But my Data is not changing when I move sensor. I dont know why not changing. Please look my data and help me. Thanks for everything. Serial monitor: AK8963 I AM FF I should be 48 AK8963 initialized for active data mode.... X-Axis sensitivity adjustment value 0.50 Y-Axis sensitivity adjustment value 0.50 Z-Axis sensitivity adjustment value 0.50 ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 0.15 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 534.67 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.31 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.33 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 533.40 Hz ax = 0.00 ay = 0.00 az = 0.00 mg gx = 0.00 gy = 0.00 gz = 0.00 deg/s mx = -470 my = -120 mz = -125 mG q0 = 1.00 qx = 0.00 qy = 0.00 qz = 0.00 Yaw, Pitch, Roll: -13.80, 0.00, 0.00 rate = 532.98 Hz ------------------------------ My schematic of sensor and arduino: https://www.google.com/imgres?imgurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Ffiles%2Fwiring-mpu-9250-arduino-mega.png&imgrefurl=https%3A%2F%2Flucidar.me%2Fen%2Finertial-measurement-unit%2Fmpu-9250-and-arduino-9-axis-imu%2F&tbnid=XbDOOtWE_R26EM&vet=12ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ..i&docid=Q56smhwHlIBmgM&w=1024&h=637&q=Schematic%20of%20mpu-9250%20and%20Arduino%20Mega&ved=2ahUKEwiyv7na8prxAhWHnqQKHQp3BrUQMygAegUIARCrAQ — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#206 (comment) <#206 (comment)>>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABTDLKWK4KVFQL7ZBGG635TTS7WFJANCNFSM4EDUXOOA . Thanks for your quick reply. What can I do for connecting with the device via I2C? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#206 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABTDLKUMYV27PDHPE3DUWTLTS7XSNANCNFSM4EDUXOOA .

I connected 3V3 and GND, then SDA and SCL. I checked with I2C scan and it gave below lines : Scanning... I2C device found at address 0x68 ! done

kriswiner commented 3 years ago

Good. Now enable I2C pass through so you can see the AK8963C also.

On Tue, Jun 15, 2021 at 5:51 PM Mustafakyuz @.***> wrote:

I connected 3V3 and GND, then SDA and SCL. I checked with I2C scan and it gave below lines : Scanning... I2C device found at address 0x68 ! done

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/kriswiner/MPU9250/issues/206#issuecomment-861927568, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABTDLKTM5W2R7Q45SPDCJYLTS7YPJANCNFSM4EDUXOOA .

Mustafakyuz commented 3 years ago

Good. Now enable I2C pass through so you can see the AK8963C also. … On Tue, Jun 15, 2021 at 5:51 PM Mustafakyuz @.***> wrote: I connected 3V3 and GND, then SDA and SCL. I checked with I2C scan and it gave below lines : Scanning... I2C device found at address 0x68 ! done — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#206 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABTDLKTM5W2R7Q45SPDCJYLTS7YPJANCNFSM4EDUXOOA .

How can I enable I2C pass?

kriswiner commented 3 years ago

This is in the init function:

// Configure Interrupts and Bypass Enable // Set interrupt pin active high, push-pull, hold interrupt pin level HIGH until interrupt cleared, // clear on read of INT_STATUS, and enable I2C_BYPASS_EN so additional chips // can join the I2C bus and all can be controlled by the Arduino as master // writeByte(MPU9250_ADDRESS, INT_PIN_CFG, 0x22); writeByte(MPU9250_ADDRESS, INT_PIN_CFG, 0x12); // INT is 50 microsecond pulse and any read to clear writeByte(MPU9250_ADDRESS, INT_ENABLE, 0x01); // Enable data ready (bit 0) interrupt

Check the data sheet.

On Tue, Jun 15, 2021 at 6:01 PM Mustafakyuz @.***> wrote:

Good. Now enable I2C pass through so you can see the AK8963C also. … <#m2045716020306149547> On Tue, Jun 15, 2021 at 5:51 PM Mustafakyuz @.***> wrote: I connected 3V3 and GND, then SDA and SCL. I checked with I2C scan and it gave below lines : Scanning... I2C device found at address 0x68 ! done — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#206 (comment) https://github.com/kriswiner/MPU9250/issues/206#issuecomment-861927568>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABTDLKTM5W2R7Q45SPDCJYLTS7YPJANCNFSM4EDUXOOA .

How can I enable I2C pass?

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kriswiner commented 3 years ago

This should all be done properly if you are using any of my sketches...

On Tue, Jun 15, 2021 at 6:17 PM Tlera Corporation @.***> wrote:

This is in the init function:

// Configure Interrupts and Bypass Enable // Set interrupt pin active high, push-pull, hold interrupt pin level HIGH until interrupt cleared, // clear on read of INT_STATUS, and enable I2C_BYPASS_EN so additional chips // can join the I2C bus and all can be controlled by the Arduino as master // writeByte(MPU9250_ADDRESS, INT_PIN_CFG, 0x22); writeByte(MPU9250_ADDRESS, INT_PIN_CFG, 0x12); // INT is 50 microsecond pulse and any read to clear writeByte(MPU9250_ADDRESS, INT_ENABLE, 0x01); // Enable data ready (bit 0) interrupt

Check the data sheet.

On Tue, Jun 15, 2021 at 6:01 PM Mustafakyuz @.***> wrote:

Good. Now enable I2C pass through so you can see the AK8963C also. … <#m_-5799279658073597153_m2045716020306149547> On Tue, Jun 15, 2021 at 5:51 PM Mustafakyuz @.***> wrote: I connected 3V3 and GND, then SDA and SCL. I checked with I2C scan and it gave below lines : Scanning... I2C device found at address 0x68 ! done — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#206 (comment) https://github.com/kriswiner/MPU9250/issues/206#issuecomment-861927568>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABTDLKTM5W2R7Q45SPDCJYLTS7YPJANCNFSM4EDUXOOA .

How can I enable I2C pass?

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