Kassomat

Kassomat
Gestartet:	XX.10.2012
Involvierte:	User:anlumo User:m68k User:ripper User:phaer User:hetti
Status:	in progress
Beschreibung:	box which changes banknotes into coins
Shutdownprozedur:
Zuletzt aktualisiert:	2016-11-11

Kassomat

payoutd controls the hardware and feeds events into redis queues where other tools may pick them up. Changeomatic listens to events in those redis queues and allows users to change banknotes into coins. The protocol is documented in the payoutd repository. People who are interested in implementing a more advanced POS system are very welcome to do so! :) There is now an umbrella organization on github which contains all the sub-projects listed below.

Kassomat/VM

Instead of installing a lot of packages and requirements you could opt to use VirtualBox and Vagrant. The kassomat-vm repository contains all the necessary files to get a fully provisioned virtual machine (it is even possible to plug the actual hardware into your host and use it from inside the vm).

Components

• Changeomatic
  • Source
  • Written in Java, can be built (and run) with Maven
    • build: mvn install
    • run: mvn exec:java -Dexec.mainClass="at.metalab.changeomatic.ChangeomaticMain"
  • UI: Graphical Swing Frontend
  • libs
    • Redisson (Redis client)
    • Jackson (JSON library)

• Maintenance Mode Application
  • Source
  • Written in Python
    • set the coin levels: ./kassomat-set-coin-levels.py
    • count the coins (n.b. this will dump all coins through the bottom opening!): ./kassomat-count-coins.py
  • UI: Console interface
  • libs
    • redis

• Payout
  • Source
  • Written in C, can be built with make
  • Linux daemon
  • JSON API (accessible via Redis)
  • UI: none
  • libs
    • hiredis (Redis client)
    • libevent2 (Event Dispatching)
    • libjansson (JSON library)
    • libuuid
    • ITL example code (aka "vendor hardware library")

• Payout Simulator for development without the real hardware
  • Source
  • Written in Java, can be built (and run) with Maven
    • build: mvn install
    • run: mvn exec:java -Dexec.mainClass="at.metalab.payoutsim.PayoutSimMain"
  • UI: Graphical Swing Frontend
  • libs
    • Redisson (Redis client)
    • Jackson (JSON library)

• Redis
  • message broker between the different components (Changeomatic, Payout and the Maintenance Mode Application)
  • not used as a datastore!

Overview of the various components

{{#ev:youtube|V_DINDvbJZY|360|left|Kassomat mit Change-o-matic in Action}}