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Hardware interface examples

These scripts demonstrate optional external hardware. Run commands from the repository root.

RHX connection

Start the TCP server in Intan RHX software, then inspect the available options:

python examples/interface/rhx_connect_to_device.py --help
python examples/interface/rhx_connect_to_device.py --channels 32 --verbose

The default RHX command and waveform ports are 5000 and 5001.

Combined RHX and Pico IMU logging

rhx_emg_and_imu.py imports pico_imu_client.py from the same directory and writes the most recent IMU sample beside each EMG sample:

python examples/interface/rhx_emg_and_imu.py --help
python examples/interface/rhx_emg_and_imu.py --channels 32 --outfile emg_imu.csv

This needs both an RHX TCP stream and compatible Pico firmware. If Pico discovery fails, the script continues with NaN IMU columns.

Pico client and firmware

python examples/interface/pico_imu_client.py --help

The host client uses UDP discovery. Firmware source is in examples/interface/pico/code.py and must be deployed with its CircuitPython dependencies. It is not desktop Python and is not imported by the package.

Limitations

  • No hardware integration test can run without the corresponding device and firmware.
  • Firewalls may block UDP discovery or the RHX TCP ports.
  • Stop acquisition with Ctrl+C so streams and output files close cleanly.