Hector9000

The idea was to build a barbot which is able to dispense 12 different liquids. We did not want to use peristaltic pumps, because it should be possible to dispense carbonated drinks. So we decided to pump the liquds with pressured air. The mass of the dispensed liquids are measured by a load cell. By using pressured air there is some loss of carbondioxide, but the Cocktails are still fizzy.
Beside the dispensing function we included some eyecandys like some (needless) moving parts and blinky LEDs.
To control the barbot we choose a Raspberry Pi. You can choose the desired Cocktail on a 7" touchsreen. After mixing the drink Hector gives an acoustic signal.