Iot.Device.Imu.Mpu6050 - System.IO.IOException on .CalibrateGyroscopeAccelerometer()
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Description
I am struggling to calibrate an Mpu 6050 specifcially it is a;
`Adafruit MPU-6050 6-DoF Accel and Gyro Sensor - STEMMA QT Qwiic`
which is connected to a Raspberry Pi 2.
When I try to call the .CalibrateGyroscopeAccelerometer(); method I get the error;
`System.IO.IOException: Can set GyroscopeBandwidth, desired value Bandwidth0184Hz, stored value Bandwidth0250Hz`
```
public HardwareAccelerometerController(
ILogger logger,
int i2cAddress,
int recalibrationIntervalMinutes,
int i2cBusId = 1)
{
_logger = logger;
try
{
var i2cSettings = new I2cConnectionSettings(i2cBusId, i2cAddress);
var i2cDevice = I2cDevice.Create(i2cSettings);
_mpu6050 = new Mpu6050(i2cDevice); // Initialize the MPU6050
_logger.LogInformation($"MPU6050 initialized with I2C address {i2cAddress} on bus {i2cBusId}.");
}
catch (Exception ex)
{
_logger.LogError(ex, $"Failed to initialize MPU6050 with I2C address {i2cAddress} on bus {i2cBusId}. Check connections and configuration.");
throw new InvalidOperationException("MPU6050 initialization failed. Ensure the device is connected and configured correctly.", ex);
}
_recalibrationIntervalMinutes = recalibrationIntervalMinutes;
_lastCalibrationTime = DateTime.Now;
}
///
/// Calibrate the accelerometer and gyroscope.
///
public async Task CalibrateAsync()
{
if (_mpu6050 == null)
{
_logger.LogError("Cannot calibrate MPU6050 because it is not initialized.");
throw new InvalidOperationException("MPU6050 is not initialized.");
}
await Task.Run(() =>
{
_logger.LogInformation("Calibrating MPU6050...");
try
{
_mpu6050.CalibrateGyroscopeAccelerometer();
_logger.LogInformation("Calibration complete.");
}
catch (IOException ex)
{
_logger.LogError(ex, "Failed to set the GyroscopeBandwidth. Proceeding with default bandwidth.");
}
});
}
```
From the logger the device is initilised;
`MPU6050 initialized with I2C address 104 on bus 1.`
From running sudo i2cdetect -y 1 on the pi I get
```
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
```
So the unit is present - i have also tried the a python sript which is returning data from the unit.
I have also tested
```
_logger.LogInformation($"MPU6050: Accelerometer X:{_mpu6050.GetAccelerometer().X}, Y:{_mpu6050.GetAccelerometer().Y}, Z:{_mpu6050.GetAccelerometer().Z}");
_logger.LogInformation($"MPU6050: Gyroscope X:{_mpu6050.GetGyroscopeReading().X}, Y:{_mpu6050.GetAccelerometer().Y}, Z:{_mpu6050.GetAccelerometer().Z}");
```
Prior to calling the `CalibrateGyroscopeAccelerometer()` method which return values. attmepting after the exception leads to 0,0,0 being returned.
I cannot find any detail on this specific error? Can anyone tell me how to debug this and what I may be doing wrong please?
Contributor guide
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Research direction
Start with the Mpu6050 entry point and the CalibrateGyroscopeAccelerometer() call, then reproduce the failure on the Raspberry Pi using the reported I2C address and bus. Compare the GyroscopeBandwidth value requested with the value read back, and verify whether calibration can complete without subsequent zero readings.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp, raspberry-pi
- Domain
- embedded-iot
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100