Planet Arduino

Combining an Android app with some fluid pumps, an infinity mirror, and a whole lot of booze — let us introduce BarT — the Automated Bartender.

It’s the work of [dosko27] for his senior design project in Electrical Engineering. It’s an automated and wireless drink mixology system. Since it’s for school, the demonstration video doesn’t have any “hard drinks” but the ingredients (up to sixteen) are completely up to you.

He started off with the case. It’s your standard infinity mirror build, a mirror, a 1-way mirror, and some programmable RGB LEDs. We covered a great build tutorial on how to make your own a few years ago. Unlike most automated bar units, [dosko27] opted for a simple, yet elegant design hiding all the electronics. One small LCD to name your drink, and one small spot to stick your cup.

He designed a custom PCB bank of solenoid drivers to control the valves on each ingredient. The trickiest (and most expensive) part with most of these builds is a pump for every ingredient — so instead, he’s using a CO2 supply to pressurize the bottles. This cuts the cost of the build, although you will have to supply CO2 now.

For more great barbot builds, check out the Roboxotica festival in Vienna for some inspiration for your next robotic bartender build!