The main hardware for dispense consists of a [[CokeMachine]] and a [[SnackMachine]]. Both of these machines are connected over serial to a Debian box which runs the software ([[Merlo]]). Please see their individual pages for further info.

[[Merlo]] runs two deamons; one written in python for the [[SnackMachine]] (the vendserver component of dispense2), and one written in c which does all the banking and controls the [[CokeMachine]] ([[OpenDispense2]]). 

[[Merlo]] also controls the UCC door. The door solenoid (ie the lock) is connected to the on-hook relay of a modem, which is mounted on the wall in the machine room. This modem is connected via serial to [[Merlo]].