demonstration-interface's Introduction

Demonstration Interface

Basic Setup

Configuration can be found in src/config.py

Data Collection

Record a session using record_session.py:

$ python scripts/record_session.py

This will save the recordings in the following format:

data/
└─ session_YYYYMMDD_HHMMSS/
   └─ episode_YYYYMMDD_HHMMSS.h5

Development

Install the package in "editable" mode. This creates a symbolic link from the site-package directory to your development directory, allowing for direct changes.

$ pip install -e .

When working in ARM-based architectures (Jetson etc.) install HDF5 manually because h5py will try to build from source. Because there's no pre-built package for ARM computers yet.

$ sudo apt-get install libhdf5-dev
$ pip install h5py

Install Libcanberra for cv2 visualization

RealSense SDK on Jetson

Convenience script from JetsonHacks

Camera Web Viewer

Running the server and making it publicly available on your network:

$ export FLASK_APP=web_viewer/app.py
$ flask run --host=0.0.0.0

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demonstration-interface's Issues

Serial connection does not work properly

Sometimes the byte sequence from the serial port can't be decoded:

Traceback (most recent call last):
  File "scripts/test_trigger.py", line 20, in <module>
    main()
  File "scripts/test_trigger.py", line 8, in main
    trigger.calibrate()
  File "/home/jannik/Repos/demonstration-interface/src/components/trigger.py", line 43, in calibrate
    value = self.get_adc_value()
  File "/home/jannik/Repos/demonstration-interface/src/components/trigger.py", line 53, in get_adc_value
    line = self.read_serial()
  File "/home/jannik/Repos/demonstration-interface/src/components/trigger.py", line 87, in read_serial
    line = self.ser.readline().decode().rstrip()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf8 in position 8: invalid start byte