BarBot/Meetings/Thu 2014-04-24

BarBot Meeting 2014-04-24

Attendees: Mouse, Ian D, Daniel S, Michael E, Banjoface

Regrets: Seb P

Agenda: Project status & progress, design talk, hacking things

Summary

• Daniel showed his prototype for a weight measuring device. Kitchen scale 0-5kg from ebay. Analog output 2-5 volts. Still need to do calibration work and test linearity.
• Banjoface got a big syringe thing delivered. Possible delivery of non-fizzy stuffs. Grenadine would looks good - red like blood.
• Michael brought in a screen in a picture frame. We talked about having a status display which would show something like what drink is currently being made
• Mouse went over the software architecture:
  • Pi running web interface on open WiFi
  • Customer chooses drink, gets PIN, takes number to operator who approves drink
  • Drink recipe executed by pi, sending commands to arduino over serial
  • Config held in database. Arduino has no knowledge of which drink in which slot
• Soft drink dispensing w/ CO2 (Michael's research):
  • £20 for 20 oz canister of CO2
  • High pressure regulator 150 Psi -> 12 Psi (BSP Fittings), w/ manifold £6
  • PET caps w/ 2 tubes on thingiverse (insert for cap)
  • Status: in progress

Action Items

1. Mouse: meeting write-up, finish contact with EMF organisers re: drinkahol
2. Mouse: to get a driver for the stepper to play with the carousel.
3. Michael E, Daniel, Ian: to continue carbonated delivery system research & prototype
4. Ian: have a think about the syringe for grenadine delivery
5. Seb P: produce design for optic delivery device
6. Seb P: continue with carousel!
7. Banjoface: continue work on vaporiser accompaniment to BarBot (which is looking amazing!)

Outstanding Tasks

1. Cocktail Research: Make a list of candidate (doable) cocktails to aim for
2. Prototype squirters
3. Improved carbonated drink dispensers
4. Power System
5. Software & database

Next Steps

• Next meeting: next Thursday (2014-05-01)