SmartMotion® MEMS Motion Sensors

Hello,



Reading out the GYRO_XOUT_H and GYRO_ZOUT_H registers from my mpu6500 works fine, but reading out the GYRO_YOUT_H register gives a noisy output.

does anybody have an idea about what I'm doing wrong? Is there a chance that the Y Gyro is mechanically broken?

kind regards,


Fré

I'm porting the eMD6 Project to my STM32F429zi based Discovery. The first problem I faced was that the GPIO PA1 used in the original Project (for STM32F409) was not working for me. I could read the signals from the INT pin of the breakout board while not connected to the PA1 on Discovery. Once connected - the output sunk. I changed it to PA0 and now the external interrupts from do arrive to the MPU.

Hi,

Hi ,

i'm using array of 2 MPU9150 and i'm able to read both accelerometer and gyroscope data but i cant figure out how to read the magnetometer date from each of the MPU's ?
for the accelerometer and gyro i have the AD0 to set different address for each MPU.

thanks!

I'm using the 6500 with DMP enabled, using the interrupt with WOM enabled to give me an interrupt on the Broadcom BCM-20736 device. I then read the interrupt status register to see if the interrupt was a DMP interrupt. Then I read the FIFO after getting the FIFO length. Typically I read 200 decimal bytes, which seems like a lot. Ultimately i want to send the appropriate set of this data up to a PC app which is already running the Teapot demo. What data do I send to the PC teapot demo? What format is the data in when received by the Teapot demo?

Thanks!

Hi all,

I am starting a new project where i simply need a MCU capable of handling the Embedded MotionDriver 6.1 (with fusion and calibration) and simply transferring the data to a master I2C device. It wont be doing anything else fancy, perhaps take button input and blink an LED.

Which MCU would be recommended for this use-case? Basically there are tons of Cortex MCU's out there.

Thanks for all advice.

Hi guys
I have been able to calculate Pitch and Roll from Accelerator. Now I am looking for calculation Yaw from the 9 inputs:
Accelerator_x, Accelerator_y, Accelerator_z ; Magnetometer_x, Magnetometer_y, Magnetometer_z ; Gyroscope_x, Gyroscope_y, Gyroscope_z

Thanks
PS: I tried using "Magnetometer data, pitch and roll" to calculate Yaw, but the result is bad. I trust Gyroscope data is required to smooth Yaw. I do not know the algorithm which utilizes all the 9 inputs including Gyro. Anyone can shed a light ?

Thanks a lot
Bob

Hi guys
As we know about Yaw, Pitch, Roll. I have been able to calculate Pitch and Roll from Accelerator.

Now I am looking for calculation Yaw from the 9 inputs:
Accelerator_x, Accelerator_y, Accelerator_z ; Magnetometer_x, Magnetometer_y, Magnetometer_z ; Gyroscope_x, Gyroscope_y, Gyroscope_z

Thanks
PS: I tried using Magnetometer data, pitch and roll to calculate Yaw, but the result is bad. I do not know the algorithm which utilizes all the 9 inputs.

Thanks a lot
Bob

using arduino nano spi interface can not write register correctly if there is no delay after cs pin is set to low ,when i add delayMicroseconds(250) ,it can write register correctly,Tsu.cs is 8 ns .why???

Hello,
I tried to get the altitude of my sensor by double integrating the Z acceleration.
The noise of the raw values lets the double integral drift very strong.
Is there a solution, which eliminates this drift? Would Kalman filtering help?