====== Vending Machine ======
{{:tool:dsc_1967.jpg?400|}}

Supplying VHS members with everything they need, close at hand.

^ Status             | Operational as of Nov 20, 2013                               |
^ Training           | No                                                           |
^ Usage Restrictions | Everyone                                                     |
^ Owner              | Marginally Clever (aka Dan Royer)                            |
^ Loan Status        | Actively maintained by owner                                 |
^ Arrival Date       | June 2013                                                    |
^ Location           | Workshop                                                     |
^ Champion           | See [[tool:compendium-of-champions#tools|Compendium of Champions]]|

===== Overview ====

TODO: Add model number, parts information, wiring schematic, IP/web address, pay-by-phone information.

===== Safety =====

Don't tip the vending machine, it weighs 300kg. Each year vending machines topple over and crush about 10-13 people.

===== Specifications =====

  * accepts bills $2, $5, $10, $20, $50
  * accepts coins $0.05, $0.10, $0.25, $1.00, $2.00

===== MDB =====

Internally the components of modern vending machines use the MDB/ICP protocol.  Several hackspaces have piggy-backed on this protocol to offer vend-by-RFID.  Our goal is to offer vend-by-phone via Raspberry Pi-run website and Paypal.

[[http://en.wikipedia.org/wiki/Multidrop_bus|Wikipedia link to MDB protocol]]

[[http://www.vending.org/images/pdfs/technology/mdb_version_4-2.pdf|NAMA link to MDB specification]]

[[tool:decyphering_mdb]]

===== Tutorial =====

Press the letter for your selection to see the price of the item.
Insert change and press the same letter+number code to purchase your selection.
If something is out of stock, please notify the owner.  Email is on the top of the machine.

===== Inventory =====

As of Jan 31st, 2014
^ # ^ 1 ^ 2 ^ 3 ^ 4 ^ 5 ^ 6 ^ 7 ^ 8 ^
| A | Blue EL Wire $25 | | Red EL Wire $25   | |                        | | Ramen $2           | |
| B | Pink EL Wire $25 | | Green EL Wire $25 | | TV B Gone Kit v1.2 $15 | | Orange EL Wire $25 | |
| C | AAA Batteries x2 $2 | | AA Batteries x2 $2 | | A->micro B USB $8 | | Reese $1.25 | |
| D | | Continuous Servo $6 | | Blueberry Fig Bar $1.25 | Coffee Crisp $1.25 | Oh Henry $1.25 | Raspberry Fig Bar $1.25 | Fig Bar $1.25 |
| E | Arduino Uno $30 | VHS LED Kit $4 | VHS LED Kit $4 | 9V Battery \w Connector | Sesame Snaps $1 | Blueberry Yogurt Grec Bar $1.25 | Granola Bar Chocolate Chip $1.25 | Greek Yogurt Granola Bar $1.25 |
| F | Raspberry Pi B \w 8GB SDCard $50 | | Kit-Kat $1.50 | | Ginger Ale $1.50 | | Coca-Cola $1.50 | |

* Inventory prices and availability subject to change without notice

===== Maintenance Log ====

^ Note               ^ Date         ^ Who       ^
| Wiki entry created            | Nov 20, 2013 | Thomas L. |
| Added owner, tutorial, safety.| Nov 21, 2013 | Dan R.    |
| Added inventory & coin notes  | Jan 31, 2014 | Thomas L. |
| Upgraded vending machine      | Apr 14, 2014 | Dan R.    |