Soda Machine/Hacking

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Button Used to Menus

The bottons are as follows

  • 1st-Home
  • 2nd-Up
  • 3rd-Down
  • 4th-Enter

Free Vend

This will set the machine to free vend and will continue to track usage.

  1. Push red button on inside board
  2. Go to "PASS"
  3. Pres "Ent+4+2+3+1+Ent"
  4. Go to "Prlc"
  5. Go to "ALL"
  6. Adjust price to "0.00"
  7. Hit ENT
  8. Close Door

DEX (Data Exchange (UCS)Uniform Code Standard)

  • What is DEX
  • Schematics for connector link
  • Information Available via DEX (source
    • Machine out of order
    • Product dispensing failure
    • Product alarm level (insufficient inventory)
    • Payment system errors:
    • Jam in coin mechanism
    • Jam in billvalidator
    • Error in cashless reader
    • Refrigeration breakdown
    • Door open log
    • MDB errors
      • Vandalism (unauthorized entry)


  • What is MDB (DEX vs. MDB)
    • requires an account to read, but a good article --Omegix 15:37, 4 November 2010 (CDT)
  • Protocol Specifications for the MDB (Multi Drop Bus) pdf
    • See Chapter 7 of above PDF for designing a cashless interface
  • To bed well designed, MDB devices should have a Y-connector built into them so that devices can piggy back onto the bus. See pictures in this document for example:

Information from the Mfr.

Service bulletins, Package info, etc from Royal Vendors (possibly the manufacturer). Our machine is a GIII