LED Drawing Prototype

This is a prototype of an LED drawing wall which renders an animated "trail" from movements on a touch screen. Documentation of the full project is here.

Running the UI

$ cd led-drawing-app/
$ npm run start

If connecting to a server not on the same host (for local UI development), you'll need to pass the REACT_APP_WEBSOCKET_HOST env variable to npm run start:

$ REACT_APP_WEBSOCKET_HOST=owabb.local npm run start

Running a development server

$ cd led-drawing-app/
$ npm run dev_start_server

Provisioning a BeagleBone

Add the host to ansible/hosts, easiest if you can SSH directly as root.

Create host_vars for the machine. Check the host_vars/owabb.local for an example.

Running Ansible:

$ ansible-galaxy install -r ./ansible_roles.yml
$ ansible-playbook ansible/site.yml

This will install all dependencies, configuration, and deploy the app on the BeagleBone.

To just deploy:

$ ansible-playbook ansible/site_deploy.yml

Desired TODOs

• Clear button so you don't have to wait for animations to fade away
• Color picker?
• connection icon for debugging