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m5stack / M5StickC-Plus

M5StickCPlus Arduino Library
MIT License
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Wrong IMU pins #55

Closed sylque closed 4 months ago

sylque commented 10 months ago

Describe the bug

The sketch M5StickC-Plus/examples/Basics/IMU/IMU.ino doesn't work because the line imu6886.Init(32, 33) is wrong. With my device, it should be imu6886.Init(GPIO_NUM_21, GPIO_NUM_22).

To reproduce

  1. Compile and run M5StickC-Plus/examples/Basics/IMU/IMU.ino => IMU readings are random

Expected behavior

IMU readings are correct

Screenshots

No response

Environment

Additional context

No response

Issue checklist

sylque commented 10 months ago

Oops, it seems I'm using the wrong version of IMU.ino... Please let me investigate and clarify this.

sylque commented 10 months ago

Ok, this is puzzling. There are two sketches for testing the IMU in this repo:

  1. https://github.com/m5stack/M5StickC-Plus/tree/master/examples/Basics/IMU
  2. https://github.com/m5stack/M5StickC-Plus/tree/master/examples/Unit/IMU_MPU6886

Only the second one has the issue described in this thread, the first one seems ok.

Tinyu-Zhao commented 4 months ago

You are right, Unit IMU_MPU6886 is an external device, using external I2C.