Cocktailmate by Creamslayer

Cocktailmate V1.0

Ideal for parties, birthdays or LAN parties, who doesn't know it... as the level rises, the mixes slowly change... not with this!

With 8 liquid (non-carbonated) ingredients (up to 9 with an additional pump & relay), you can have a nice evening in a group or take it with you on a handcart and use it

With 4 powerful 500ml (juices & syrups) and up to 5 120ml (alcohol) peristaltic pumps, creativity knows no bounds

Of course, long drinks or shots can also be dispensed with this. A Tequila Sunrise is ready to drink in 22 seconds (350ml + 150ml ice) (2 types of Tequila, Grenadine, Orange Juice, Lime Juice)

The functions are limited to the essentials. In the near future, there will be an update with Esp32 to easily adjust recipes on your phone, as memory will no longer be an issue. Currently, 6 recipes can be hardcoded (thanks to Arduino Nano memory...), but this is clear and simple

Discord: 

https://discord.gg/sPRCxW3mCp

Table of Contents

• 1. Bill of Materials: 

• 2. Code Instructions 

• 2.1. Adjust Ingredients (Pumps)

• 2.2. Create New Recipes or Modify Existing Ones

• 2.3. Important Notes on Recipes

• 2.4. After the Changes

• 3. Circuit Diagram

1. Bill of Materials: 

1. 2x Power Distributor 12v: https://amzn.to/4imVW8p 
2. 2x 4 Channel Relay 5v with Optocoupler: https://amzn.to/422py62
3. Optional for a 9th pump, an additional 5v 1 channel relay: https://amzn.to/4jdYuX8
4. Up to 4x Peristaltic Pump G928 12v 500ml: https://amzn.to/4jgHv77  , https://amzn.to/3EaILZV  , https://amzn.to/4ciZZ3U , https://amzn.to/3Gbnyzy … (Prices vary depending on the provider)

5. 4x Peristaltic Pump G528 12v 150ml, if you want to install 9 pumps 5x or as a replacement for the G928:

   https://amzn.to/42xaFbT , https://amzn.to/42wC2ml , https://amzn.to/4li12VN , https://amzn.to/3RGwPlG …..

    (Prices vary depending on the provider)

6. Hose Clamps 6mm: https://amzn.to/3YhVTDi
7. Hose Clamps 9mm: https://amzn.to/3XNw8Lb (alternatively small cable ties)
8. 2x Pneumatic 90 Degree Angle Connectors 6mm (24 pieces total), 4 more pieces needed for 9 pumps: https://amzn.to/3FVsE2R
9. 1x 8mm to 6mm Pneumatic Connector Reducer: https://amzn.to/4cpdoYn
10. 2x 10 Meter 6mm Pneumatic Hose (also available in transparent but was not deliverable, 6mm outer 4mm inner): https://amzn.to/3G8iZGg
11. 1x 10 Meter 8mm Pneumatic Hose: https://amzn.to/43Bx5K9
12. 1x Silicone Hose 6x8mm 1 Meter: https://amzn.to/4lfNsm5
13. 1x 12mm Key Switch (2 are needed): https://amzn.to/4cpaXoP
14. 3x Pneumatic Push-in Connectors 6mm with Screw Fitting (9 pieces): https://amzn.to/42A35x6
15. Alternative to 13. 1x 6mm OD 1/8 inch Thread Pneumatic Push-in Screw Fitting (8-9 pieces): https://amzn.to/4jk2W6y
16. Alternative to 13. 9x 6mm IQS Shott Push-in Connectors with Cylindrical Internal Thread G 1/8: https://amzn.to/42kgrfG
17. 1x Push Button 7mm 12v 3A SPST 2 (3 pieces): https://amzn.to/3RE6mVW
18. 1x DC Socket 12v 5.5x2.1mm: https://amzn.to/42pZKQb
19. 12v Power Supply 120w: https://amzn.to/4jlQ14i
20. Alternatively for battery operation (For the battery type you have at home): https://amzn.to/4iYZFtT 
21. Step Down 36v to 5v 2A with Display: https://amzn.to/42a5Qnq
22. Signal Cable for Display, Push Buttons and Signals: https://amzn.to/4jgOBZj
23. 1mm² Cable for Motors and General Power Supply e.g.: https://amzn.to/3GGqCE4 
24. Glass Straw 7mm for Suction: https://amzn.to/41ZeSVF

25. Arduino Nano Kit with Display Board etc: https://amzn.to/3Ynyn83

    Or alternatively 22.-23.

26. Arduino Nano with Expansion Board (only one is needed) (USB-C ): https://amzn.to/4i4oJhF
27. ELEG00 0.96 inch OLED Self-Luminous (only one is needed): https://amzn.to/43IcbZR
28. 24x Screws: M3x 8mm for PCBs and g928 to g528 Adapter
29. Chipboard Screws: 2x Countersunk Head 6mm x 50mm, approx 25x Countersunk Head 4mm x 25mm, approx 25x Countersunk Head 4mm x 16mm
30. 4x Fan Screws (Usually included with PC fans): https://amzn.to/3YiQLyQ
31. Automotive Connectors for the Push Buttons on the Lid: https://amzn.to/44ddW1d
32. Server Fan 40x40:  https://amzn.to/4lyGFnI

You will end up at approx. 600€ (on Amazon)

with the filament at approx. 650€ 

Tools nice 2 have: 

1. JOKARI 20050 Wire Stripper Super 4 plus: https://amzn.to/3DY3S1H
2. Crimping Pliers Kit with Sleeves: https://amzn.to/3EaHhz2
3. Cordless Soldering Iron: https://amzn.to/4jjudpR

2. Code Instructions

Instructions for Adjusting Recipes and Ingredients for the CocktailMate

Coude.ai will gladly explain how to adjust the recipes and ingredients in your cocktail machine. This guide is intended for beginners and will walk you through the process step by step.

2.1. Adjust Ingredients (Pumps)

The ingredients are defined in the config.h file. For each pump, there are three important settings:

• PUMP[X]_INGREDIENT: The name of the ingredient (e.g., "Vodka")
• PUMP[X]_PIN: The Arduino pin to which the pump is connected
• PUMP[X]_RATE: The flow rate of the pump (how many ml per unit of time) (For normal viscosities G928 =110 G528 = 325)

To change an ingredient:

1. Open the config.h file
2. Search for the corresponding pump block (e.g., PUMP0_INGREDIENT)
3. Change the name in quotation marks (e.g., from "TequilaSilver" to "Rum")

Example for changing Pump 0:

c

// From: 

#define PUMP0_INGREDIENT "TequilaSilver" 

#define PUMP0_PIN 2 

#define PUMP0_RATE 325  

// To: 

#define PUMP0_INGREDIENT "Rum" 

#define PUMP0_PIN 2 

#define PUMP0_RATE 325

2.2. Create New Recipes or Modify Existing Ones

Recipes are defined in the Recipes.cpp file. You can change an existing recipe or add a new one.

Change an existing recipe:

1. Open the Recipes.cpp file
2. Search for the desired recipe (e.g., "Tequila Sunrise")
3. Adjust the ingredients or quantities

Example for changing the Tequila Sunrise:

c

// From: 

const char *const sunrise_name = "Tequila Sunrise";

const char *const sunrise_p1_ingredients[MAX_INGREDIENTS] = {"TequilaSilver", "OSaft", "TequilaGold", "Zitronensaft", nullptr, nullptr, nullptr, nullptr}; 

const long sunrise_p1_amounts[MAX_INGREDIENTS] = {40, 210, 20, 20, 0, 0, 0, 0};  

// To:

const char *const sunrise_name = "Rum Sunrise";

const char *const sunrise_p1_ingredients[MAX_INGREDIENTS] = {"Rum", "OSaft", "TequilaGold", "Zitronensaft", nullptr, nullptr, nullptr, nullptr}; 

const long sunrise_p1_amounts[MAX_INGREDIENTS] = {60, 190, 20, 20, 0, 0, 0, 0};

Add a new recipe:

IMPORTANT: Do not exceed the maximum number of 6 recipes! The Arduino Nano has limited memory, and more than 6 recipes can lead to crashes and malfunctions.

If you want to add a new recipe:

1. It's best to replace an existing recipe instead of increasing the total number
2. If you still want to add a seventh recipe, you must remove another one

Example for replacing an existing recipe:

c

// For example, change "Blue Riviera" to "My Cocktail" 

const char *const blueriviera_name = "My Cocktail"; 

const char *const blueriviera_p1_ingredients[MAX_INGREDIENTS] = {"Rum", "Ananassaft", nullptr, nullptr, nullptr, nullptr, nullptr, nullptr}; const long blueriviera_p1_amounts[MAX_INGREDIENTS] = {50, 150, 0, 0, 0, 0, 0, 0}; 

const char *const blueriviera_p2_ingredients[MAX_INGREDIENTS] = {"Grenadine", nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr}; const long blueriviera_p2_amounts[MAX_INGREDIENTS] = {20, 0, 0, 0, 0, 0, 0, 0};

2.3. Important Notes on Recipes

• Each recipe has two phases (phase1 and phase2) that are executed sequentially
• The quantity of an ingredient is specified in milliliters (ml)
• Unused ingredients must be marked with nullptr
• The corresponding quantities at unused positions must be set to 0
• The ingredient names must exactly match the names defined in config.h
• Keep the number of recipes at a maximum of 6 to avoid memory issues

2.4. After the Changes

After changing the files, you must:

1. Recompile the code
2. Upload to the Arduino

3. Circuit Diagram

*All links are affiliate links but do not lead to a valid account (link shorter)

The machine has been tested and works perfectly :)

26.04.2025: Circuit diagram and code added, as well as drip tray 500ml!

If someone wants to make a better circuit diagram, I would be happy. I hope it is reasonably understandable.

You can upload the code to the Arduino Nano via VS Code, for example.

Have fun

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