greenbacks/Readme at master · pkropf/greenbacks · GitHub

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Greenbacks
==========

Greenbacks shows an intersection between a bill acceptor and an
Arduino micro-controller.


Background
----------

A bill acceptor is a small module that processes US paper currency
($1, $5, $10, etc.) and ensures that it's valid. You'll typically find
these in vending machines. Whenever you feed the vending machine a $1
for a bag of chips, the bill acceptor ensures that you're giving it
real currency and then tells the rest of the machine how much credit
you now have to make a purchase.


Hardware
--------

For this project, the hardware is a Pyramid Technologies
APEX-5400-SN1-USA bill acceptor and an Arduino Uno.


Cleaning & Configuration
------------------------

Via Jon from Pyramid - 480-641-9733

Use a sharpie to mark the ovals. Go over 3 lines on top, 2 on bottom,
lines along with the lines along the side. Sometimes the shine from
the paper / ink interferes with the sensors reading the card.

Follow the cleaning instructions in the maintenance manual.


Communications
--------------

The APEX-5000 series bill acceptors have a number of different ways of
communicating the type of bill accepted. In this case, the bill
acceptor is configured to send 10 50 millisecond pulses per dollar. A
$1 bill will cause 10 pulses to be sent while a $5 bill will cause 50
to be sent.


Adepto
------

The Adepto sketch is designed as an donation machine to accept money
and allow people to trigger a series of fire effects. Its being used
by the Crucible as a fundraising tool.


References
----------

Apex 5000 - http://www.pyramidacceptors.com/apex5000.html
Apex 5000 Docs - http://www.pyramidacceptors.com/support.html
Arduino Uno - http://arduino.cc/en/Main/ArduinoBoardUno