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coffeefy

Description

Coffeefy let you control a coffee maker via the Internet using a RESTful API provided by an express.js-server. However, this system isn't reliable yet and should run under supervision.

System architecture

Systemarchitektur

Used hardware

  • Raspberry Pi 3
  • Senseo 7810 Coffee Machine
  • HC-SR04 Ultrasonic Sensor
  • 3 Relays
  • 2 Resistors(680Ohm/1kOhm)
  • minor small parts (optional breadboard, wires etc.)

Installation

  • clone repository
  • navigate to ./node
  • run npm install to install the dependencies
  • To start the webserver, run: nodemon app or node ./bin/www
  • open http://localhost:3000 in your browser

You can run Coffeefy as a daemon service using "forever". (see below) After Installation you can start the node.js server by running forever start ./bin/www. To see what's going on, determine the logfile path by running forever list and run tail -f <logfilepath>

(Instructions for running ultrasonic.py in background)

Required Python libraries

  • RPi.GPIO via sudo apt-get install rpi.gpio
  • paho-mqtt via pip install paho-mqtt

Useful node.js modules and other ressources

Troubleshooting

  • Installing paho-mqtt causes an error. Missing "Python.h"? → Install the python developer package via apt-get install python2.7-dev.
  • node app.js results in a crash. → I dunno Y, just install nodemon via npm.node ./bin/www

Authors

Vanakh Chea, Alexander Thürling, René Honnen, Christian Krenn

License

GNU