arduino_cocktail.md 2.4KB
title: Arduino-Cocktail description: CO₂ driven experimental cocktail machine parent: drinkrobotics position: 500 comments: true github: https://github.com/drinkrobotics/Arduino-Cocktail date: 2017-07-22
update: 2021-03-25
Also in 2017, as part of some experiments regarding dispensing drinks in a cocktail machine using carbon dioxide, I’ve built my own small Cubalibre machine.
It is built inside a 12x1l Coke box and powered by a 3S quadcopter LiPo battery. The liquids are propelled using pressurized CO₂ from a Sodastream cartridge with a proper pressure reducer (check eBay). The dispension is controlled by four solenoid valves, operated using relais. Custom built 3D printed bottle cap adapters are used to pressurize coke bottles and take out the liquid. Everything is controlled by an Arduino, with a small OLED display and three buttons as the user interface.
The Arduino firmware can be found on Github.
This machine has also been presented next to Ubabot at Makerfaires in Friedrichshafen and Hannover. It was used properly, to actually dispense drinks, at a birthday party. Unfortunately I don’t have any photos or videos of the machine being in use. Also the Sodastream bottle and pressure reducer were only borrowed from a friend and I no longer have them.