Gyro, Accel, and Mag Connections

digitaldanny / AudioEffectsGlove

A hand tracking glove that controls parameters of various audio effects.

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Gyro, Accel, and Mag Connections #39

Closed digitaldanny closed 3 years ago

digitaldanny commented 3 years ago

Describe the solution you'd like

Connections between microcontroller and MPU-9250 over SPI.
Develop basic SW drivers to read X,Y,Z data from each of the sensors on this IC.

Additional context

Research for this issue was completed in #5.
Sensor fusion implementation will be completed in a different issue in the future.

digitaldanny commented 3 years ago

This Arduino library has some cpp code for reading from the sensors and also configuring the DMP (Digital Motion Processor). If I end up using the glove as an HID controller, this could offload the CPU calculations from the MSP432.

digitaldanny commented 3 years ago

Both MPU-9250 breakout boards delivered. Picking up Sunday (02/07).

digitaldanny commented 3 years ago

MPU-6500 breakout board schematics here.

digitaldanny commented 3 years ago

Working on porting the MPU6500 drivers used in this repo.

digitaldanny commented 3 years ago

Probably would be a good idea to see how much / how quickly the gyro drifts for this IC before implementing the sensor fusion algorithm.
Design simplified to only capturing 2 axes since inductors on buck/boost converter will distort the magnetometer readings + components ordered were mislabeled as MPU9250 when they are actually MPU6500, which do not contain magnetometer sensors.

digitaldanny commented 3 years ago

Will be using the MPU6500 breakout board instead of soldering the component onto the glove PCB. This is because the IMU is the only component that needs to be mounted to the hand, so the rest of the components will be mounted to the forearm to support the bulky PCB (using mainly thru-hole components).