C0de-Hart

C0de-Hart is a theater production. Nerdlab is co-creating an interactive installation for kids accessible to the public (21-25 March 2025, Ghent).

I made 2 props for the installation:

• Two push button in an enclosure with animated leds when pressed.
• A breathing simulation by inflating/deflating a large plastic bag with 2 PC fans. Speed control is done using PWM. The bag is mounted in a life size figure embodying a Meta Human that can become 'alive' during the installation scenario.

C0de Hart Arduino documentation

Introduction

Documentation for the ESP32 modules used in the C0de Hart Nerdlab project.

There are 2 modules implemented:

• C0de-hart-buttons
• C0de-hart-Meta-Human-breathing

Both modules use the OSC protocol to communicate with a Touch Designer server.

Network

This setup is identical for both ESP32 modules.

• SSID: "Nerdlab"
• Password: <PASSWORD>
• IP Touch Designer server: "192.168.188.202"
• Remote Port ESP32: 4401, port to send OSC messages
• Local Port ESP32: 4400, port to receive OSC messages
• Local IP address is allocated via a static IP address configured in the router DHCP setup.
  • C0de-hart-buttons: "192.168.188.???"
  • C0de-hart-Meta-Human-breathing: "192.168.188.???"

C0de-hart-buttons

How it looks ...

The OpenScad design

A red and a green push button are used to communicate with the Touch Designer server to indicate if a person in the Meta Human scenario agrees to be uploaded (Green button) or not (Red button).

Receive:

• “/keep_alive”, <integer 0..9999>:

  • No effect, except logging. Optional for Touch Designer server.

• “/command”, <ASCII character>:

  • No effect, except logging.

Send:

• "/keep_alive", <integer 0..9999>:

  • Every 15 seconds
  • Integer is increased by 1 modulo 10000.

• “/button”, “red”|”green”:

  • Indicate which button is pressed
  • Every 15 seconds
  • Integer is increased by 1 modulo 10000.

• “/button”, “red”|”green”: * Indicate which button is pressed

C0de-hart-Meta-Human-breathing

The Meta Human will start to breath once a person is uploaded after pressing the green button. Please note the code and hardware used is a reuse/spin-off of the Biomorphic Breath #1 installation created in 2024. More info:

• https://stevevanhoyweghen.github.io/biomorphicbreath1.html
• https://www.instagram.com/p/DCZhbawMvf0/
• https://www.instagram.com/p/DCkP_LMtBDt/
• https://www.instagram.com/p/DCkOsG-MU8e/
• https://www.instagram.com/p/DCcFKGxoJZG/

Only the breathing simulation will be used and will be initiated by Touch Designer by sending “/command”, '1'. To stop send “/command”, '2'.

Receive:

• “/keep_alive”, <integer 0..9999>:

  • No effect, except logging. Optional for Touch Designer server.

• “/command”, <ASCII character>:

  • '0': "Stop all sequence snippets"
  • '1': "Start breathing"
  • '2': "Stop breathing"
  • '3': "Arm left"
  • '4': "Arm right"
  • '5': "Stop arms"
  • '6': "Head"
  • '9': "All together now!"
  • 'a': "Deflate all sequence"
  • 'b': "Inflate all sequence"
  • 'c': "Do nothing, all fans minimal"
  • 'd': "All bags maximum deflation"
  • 'e': "All bags maximum inflation"
  • 'f': "Test sequence"
  • … all others will give a LOG_WARNING, "Unhandled command"

Send:

• "/keep_alive", <integer 0..9999>:
  • Every 15 seconds
  • Integer is increased by 1 modulo 10000.
• “/command”, <copy received command>