Build your own
Here you find a list of hardware that you might what to use to build your machine. Not all components are required. The hardware that you have to pick depends on your planned setup. You can find three blueprints at the bottom of the page that you can use as a reference. Pay special attention to power supplies. Make sure that the pumps and power supply that you select are compatible. Use voltage converters if needed. Please not that you setup strictly needs to use a RaspberryPi. Other platforms like NanoPi or BananaPi are not supported!
After you’ve finished your hardware setup or if you just want to try out the software on your own RaspberryPi, you can continue with the installation of CocktailPi:
Blueprints
The following blueprints show some example setups. Please note that hardware and blueprints are provided without warranty!
Basic setup
This is a minimal setup that doesn’t allow to run the pump the reversed direction.
Basic setup with reverse pumping
This is a similar setup to the Basic setup above, but this one contains two relays that can be used to reverse the direction of the voltage to which the pumps are connected. This allows the software to make the pumps run in the opposite direction. This is useful if you want to pump leftover ingredients from the hoses of your machine back into their container.
Complex setup
This setup is an example of what can be connected to your machine. It includes a GPIO expander from which up to 8 units could be connected. It also uses DC motors and stepper motors in combination.
Hardware list
Here you find a list of hardware components, that you might want to use for your setup. Please note that hardware and blueprints are provided without warranty! All amazon links are affiliate links.
Basic hardware
- 1x RaspberryPi: https://amzn.to/3Z3Ppaz
- 1x Relay-Board: https://amzn.to/3EM6ooB
- 8x Dosing pumps: https://amzn.to/3LdHUYV
- 8x Diodes (reverse current diodes)
- 1x 9V Power supply: https://bit.ly/2ZJPIcP
- If the link doesn’t work, here is an adjustable 0-24V power supply: https://amzn.to/47VhgNI
- Or use a larger voltage and convert it down. For example with: https://amzn.to/3RFo789 Note that this power buck can only supply 3A. You may need more that one depending on the number of pumps, that you want to use.
- Silicone hose: https://amzn.to/3Z3Ptaj
- Cables
- Make sure to pick cables that are strong enough for your application. (Cable cross section)
Fancy stuff
Faster pumps:
- 12V/24V Dosing pump: https://amzn.to/3Z2NYsZ
Stepper pumps:
- Stepper motor pump: https://amzn.to/3PdfVts or https://amzn.to/3HnyEiF
- The stepper motors should work with 12V, but I would recommend to power them with 24V.
- Stepper motor driver: https://amzn.to/44QTeB5 (1 per motor)
- Stepper motor driver board: https://amzn.to/45SLvDO (1 per driver, optional)
Power supplies:
- 5V step down power supply: https://amzn.to/3PraKY2 (for the raspberry)
- 12V power supply: https://amzn.to/3P5Nmya (Can be used with 12V pumps)
- 12V power stabilizer: https://amzn.to/3sJiQ5C (Can be used to power the machine by battery)
- 24V power supply: https://amzn.to/3EClooX
- 0-24V adjustable power supply: https://amzn.to/47VhgNI
- Voltage converter / Power buck: https://amzn.to/3RFo789
Other:
- Touchscreen 7 inch: https://amzn.to/3qYUC6X
- 16-Pin I2C GPIO expander: https://amzn.to/3ZgIpqW
- 16-Channel Relay-Board: https://amzn.to/3EFJwH8
- The raspberry Pi only has 3.3V GPIO-Pins, but the relay board needs 5V on its pins to trigger the relays. This can help: https://amzn.to/3sVQrcJ
- 2-Channel Relay-Board: https://amzn.to/3sEdkkF (Voltage director relays for reverse pumping)
- Rectifier diode: https://amzn.to/3PraRCW (If you use the power supply and the power stabilizer)
- LAN-Cable box: https://amzn.to/485wRLa (For the case)