72 lines
1.6 KiB
Markdown
72 lines
1.6 KiB
Markdown
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# Matemat
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The Matemat is a vending machine for carbonated soft drinks.
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It is based on an old vending machine with all its
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electronics replaced by new custom-build circuit boards.
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All hardware and software was designed by members of
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(CCC Basel)[http://www.ccc-basel.ch] and released in the
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form of circuit diagrams, printed circuit board layouts
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and source code for anyone to use and modify. Refer to
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the LICENSE file for details.
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The name "Matemat" is a portmanteau of "mate" (as in mate
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tea) and "automat" (the German word for vending machine).
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The device is mainly intended to dispense mate tea based
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soft drinks, but may be used for other types of beverages
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too.
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## Structure
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The heart of the vending machine is a Raspberry Pi
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model 3 or later, witch a custom CAN interface board
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on its GPIO header.
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See (CAN Hat)[https://github.com/onitake/canhat] for
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more information.
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## Modules
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The Matemat components are highly modular. Individual
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circuits are connected by CAN bus, and can be extended
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as needed.
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### drive
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Single-motor driver.
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Attached directly to each bottle release mechanism.
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Requires only power supply wires for the motor and the
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CAN bus line.
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### power
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Motor driver board and power supply.
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Alternative to the drive board. Uses the existing machine
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wiring instead of power + CAN.
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### control
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Old central control board. Obsolete.
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### feedback
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End switch feedback interface.
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Senses the status of the end switches and sends CAN bus
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messages on changes.
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### poweriface
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Interface between CAN bus and power board.
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### sensor
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Environment sensor interface.
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### wiring
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Wring schema of the old vending machine.
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