- Input: user parameters measurement/acquisition
- body temperature
- beverage temperature
- in other words - lots of temp sensors on the outside and a few on the inside
- pulse, pressure (squeezing)
- skin resistance
- motion/acceleration
- possibly: right hand/left hand detection
- a microphone (optional) - limited by processing power on board which is limited by the amount of electrical power available
- Communication - short range low power low bandwidth (100kbits/sec) IR
- Capable of detecting direction and distance (low accuracy)
Output
- vibration (low amplitude - not nearly as strong as cell phone vibrators)
- stronger, direction-controlled motion - requires more power than can be extracted from coffee
- Lip I/O
- Power source
- beverage heat
- Other requirements
- easy to clean
- not too fragile
- Size/form factor issues
- Handle / no handle
- Overall size
- Making a sufficient variety of these - see below.