Dixie Narco Soda Machine

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Dixie Narco Soda Machine
Name	Dixie Narco Soda Machine
Zone	Snack Zone
Owner	i3Detroit
Make Model	Dixie-Narco
Part Number	DN2145 / ECC2100
Date Acquired	2017-03
Date Departed	2022
Storage Location	Next to the white fridge
Authorization Required	No
Status	Departed
Value	$300
IP Address	10.13.107.49, 10.13.107.125
MAC Address	5C:CF:7F:BD:5E:15, 2C:3A:E8:26:57:B4
Hostname	commons-snapple-vending-light, snapple-vending-compressor
Documentation	Mars 6010XV coin changer (modified to fit our internal connector) https://github.com/i3detroit/dixie-narco
Other References	Sonoff Basic for the light, Sonoff POW for the compressor https://github.com/arendst/Sonoff-Tasmota/wiki

Intro

This is a glass front drop-style drinks vending machine

Rules

Pay into the cup in the white fridge until the new controller is up and running

Instructions

Open the glass door and carefully remove the one you want from the front of the column, then close door and pay into the white fridge. No new fridge cards

MQTT Topic: cmnd/i3/inside/commons/snapple-vending-light/POWER

Maintenance Info

It is suggested the air filter be changed once or twice a year. The filter is 10" x 20" x 1".

After programming (the compressor), this command need to be run to setup switch mode stuff, which cannot be put in the eeprom.

Either in the web ui, go to configuration -> module, set gpio3 to DS18x20, or

mosquitto_pub -t "cmnd/i3/inside/commons/snapple-vending-compress/GPIO3" -m "4"

FAQ

Pictures of the inside as modified:

The pinout of the color to pins of the TRRS cable

The pinout of the internal serial port to the ribbon cable

pinout of ribbon cable to TRRS jack board

pinout of onewire sensor with pullup

ToDo

• clean coin mech, and re-calibrate
• fix cooling system (fixed?)

Replacement Controller

Since the machine's controller is braindead, Amelia Meyer has started work on a replacement, DIY, open-source, organic, chemical-free, holistic controller.

Pinouts

Rows

There are six rows, with nine columns each. All rows use the same pinout, on a 10-position Molex 2695KK connector.

Pin	Color	Purpose
1	Black	Return
2	White	Column 9
3	Grey	Column 8
4	Violet	Column 7
5	Blue	Column 6
6	Green	Column 5
7	Yellow	Column 4
8	Orange	Column 3
9	Red	Column 2
10	Brown	Column 1

Keypad

This is a simple 6 x 3 membrane matrix, on a 10-position Molex 2695KK connector. Pin 7 is unconnected.

	8	9	10
1	CLR	*	F
2	0	9	E
3	8	7	D
4	6	5	C
5	4	3	B
6	2	1	A

Display

Display is run by an OKI (MS)C1937-01 14/16-segment 16-digit LED driver, driving (8) 14-segment digits with decimal points. This unit uses a 3M C-GRID 2x13 connector.

Pin	Purpose
1	5VDC
2	5VDC
3	GND
4	GND
9	SCLK
10	DATA
17	Power-On Reset
20	GND
26	Button

Vend-Confirm Sensor

This appears to be an off-the-shelf industrial-style retroreflective beam-break sensor. It uses a 12-position Molex 2695KK connector. Pins 2-4, 6-8, and 10-12 are unpopulated.

Pin	Color	Purpose
1	Blue	GND
5	Brown	5VDC
9	Black	Beam Broken

Old Temperature Sensor

Labeled CR0023212-0.2-163400024, this is supposedly a SPI-connected temperature probe. However, no response could be elicited from it, and it will be replaced with an AM2302. It uses a 6-position Molex 2695KK connector, with pin 6 unpopulated.

Pin	Color	Purpose
1	Blue	TEMPRST
2	White	DATA
3	Green	SCLK
4	Black	GND
5	Red	5VDC

New Temperature Sensor

New temperature/humidity sensor is a AM2302, serial number 15120F902. It uses a 3-position JST-XHP connector.

Pin	Color	Purpose
1	Black	GND
2	Red	5VDC
3	Yellow	DATA

Door-Open Sensor

This is a simple plunger-style switch, on a 3-position Molex 2695KK connector. Pin 1 is unpopulated. The switch is open when the door is.

Pin	Color	Purpose
2	Black	Switch A
3	White	Switch B