This holiday season if you would prefer not to be standing at the bar making your friends cocktails, but enjoying more of the party, you may be interested in this DIY robot cocktail maker which has been created using a little Arduino hardware and programming. Featured robot cocktail mixing machine allows you to blend three different spirits or liquids together to create a wide variety of different drinks depending on your preferences. The demonstration video below uses vodka, cranberry juice, and grapefruit juice to make a Sea Breeze.
In this project I will show you how I combined an Arduino Nano, an LCD, a rotary encoder, three peristaltic pumps with motor drivers, a load cell and a couple pieces of wood to create a crude, but functional Cocktail Machine. Along the way I will demonstrate how peristaltic pumps work and in which way they can work with the other components in order to pump a precise amount of liquid.
An Arduino Nano provides the brains for this operation, and each component is poured using a series of three peristaltic pumps. Meanwhile, a load cell underneath the glass holder ensures that the correct amount of liquid is dispensed. The same setup could be used to make different three-ingredient drinks with a little programming work, or it could be expanded into a multi-drink unit with the addition of a few more pumps. You can see it in action below!
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