Drinkbot: A Raspberry Pi-powered Robotic Bartender

This is the nodejs code for the Rasperry Pi-based robotic bartender (which I call drinkbot) described at:

http://upperbound.com/projects/drinkbot/

There are a few other dependencies:

• MongoDB (for data storage)
• pico2wave (for text-to-speech synthesis)
• mpg123 (for playing MP3 audio files)

To start the application

Change to the folder where you downloaded the files.

Start the backend:

$ sudo node backend.js &

Start the web front-end:

$ cd frontend
$ node server.js &

If you want to start it at boot, you can do the following:

1. Install forever:

$ sudo npm install -g forever

2. Add this to your crontab (your paths may be different):

Run:

$ crontab -e

and then add:

@reboot export NODE_PATH=/usr/lib/nodejs:/usr/lib/node_modules:/usr/share/javascript && sudo -E /usr/bin/forever start -o /home/pi/projects/nodeapps/drinkbot/backend.log -e /home/pi/projects/nodeapps/drinkbot/backend.err /home/pi/projects/nodeapps/drinkbot/backend.js
@reboot export NODE_PATH=/usr/lib/nodejs:/usr/lib/node_modules:/usr/share/javascript &&  /usr/bin/forever start -o /home/pi/projects/nodeapps/drinkbot/frontend/server.log -e /home/pi/projects/nodeapps/drinkbot/frontend/server.err /home/pi/projects/nodeapps/drinkbot/frontend/server.js

To do:

• Make some hardcoded values config options
• Move config options to a separate .json file