Serial Sensors

A simple utility program to fetch data off my microcontrollers over a serial connection. Its primary goal is to provide a host-side implementation of a semi-standardized protocol for reading sensor data, such as IMU data (accelerometer, magnetometer, gyroscope), temperature, etc.

I'm currently using it for these projects:

• stm32f3disco-rust via serial-sensors-proto.

At the moment it doesn't do much: it simply dumps out the information as it comes.

Logging data streams to disk

By using the dump subcommand and the --dir /path/to/log arguments, data streams can be logged as CSV. The command creates one file per sensor and information type. The CSV will contain both the device-side and host-side timestamps to allow for better inference of sensor data rates later on.

By using the optional --raw /path/to/file.bin argument, the raw data stream can be logged.

cargo run -- dump --port /dev/ttyACM0 --raw stream.raw --dir dump/

Analyzing data dumps

To analyze data dumps, use the analyze-dump command. To run it with the test data, use e.g.

cargo run --no-default-features --features=analyze -- analyze-dump \
  --dir test/2024-07-06/stm32f3discovery \
  --output test/2024-07-06/stm32f3discovery/output/ \
  --from 10 --to 25

Here is an example output for accelerometer measurements:

Sensor cross-correlation suffers a bit from display issues, but it's a starting point: