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About AnthonyGui
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05-13-2019
07-18-2019
AnthonyGui
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07-17-2019
12:08 PM
Dear All, I am currently trying to gather data from the BMI160 shuttleboard after successfully having done so with the other BMIs. However, with this one, when I print the gyroscope values (and magnetometer) they do not change but are fixed. However, the accelerometer ones do change. The pin layout I have is 3.3V to pins 1,2,8,9,15 with a pullup resistor. SCL and SDA to pins 16 and 17 with pullups and Ground to pin 3. I also have set commands to turn on the gyroscope and accelerometer to register 0x7E with values 0x15 and 0x11 respectively. I also wait more than the required time before acquiring data once they are powered up. I also read register 0x03 in order to check whether the gyroscope is powered on and I get 0x14 as a result indicating that the gyroscope is indeed on. However, when reading register 0x1B to check if the gyroscope is data ready, the 6th bit (so the one for the gyro) is equal to 0 indicating that it is not data ready. I was wondering what I was missing in order to refresh the gyroscope data. Thanks in advance, Best Regards, Anthony Guillard
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07-10-2019
12:40 PM
Dear Vincent, Thank you so much for your help. That is what I have just implemented. I am using the BMI088 as of right now before moving on to the other ones. The acceleration is represented by 16 bits. After having implemented your method I have realised something else: the datasheet mentions that the conversion from LSB to mg is done in the following way Acc_mg = Acc_int_Y/f32768*1000*2**(<0x41> + 1)*1.5 Where <0x41> is the content of that said register. I am using the BMI088 in +/-3g mode thus the register output is 0. I was previously using the range setting (so 3 here) instead of the register output. However, both solutions yield odd results. Did I make a mistake in the conversion process? Best, Anthony Guillard
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07-09-2019
11:42 AM
Hello everyone, I am currently gathering data from all the BMIs in shuttleboard versions. I have set the range for the acceleration via the smbus2 proposed by Python. However, my acceleration measures add up to 11,100 mg(even when taking into account biases and noises that is not 9.81 m/s^2 so 1000mg or 1g). Hence, I believe that there may be a problem when setting the acceleration range. Indeed, when using the Python smbus2 I can only write bytes (at minimum one) but the range is set by writing only one bit to the bus. Does anyone know how to solve this problem? Thanks in advance, Best, Anthony Guillard
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05-13-2019
02:47 PM
Hello, I am currently designing a benchmark test to characterize several IMUs at once (working only with Shuttle boards). Hence, I need a data logging platform, I saw that Bosch has one but an application board is needed and since I would need several application boards to complete my tests which would end up being a bit pricey. Hence I was wondering if Bosch has drivers for Labview to use Labview as my data logger. Thanks in advance! Anthony
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