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Overview of the KegNet Client

The KegNet client consists of a small, cheap, internet connected computer attached to a liquid flow meter and a temperature sensor. This allows it to constantly track beer consumption and refrigerator temperature, which is then transmitted to the central KegNet servers for processing and display.

Hardware

• Raspberry Pi Model B - $35 from Newark Element 14
• [KegNet Raspberry Pi Adapter Daughter Board] - (Custom designed)
• SF 800 Low Pressure Flow Meter - $60 + $20 S&H from Swissflow
• Waterproof Digital Temperature Sensor $10 from Adafruit
• Minimum 4G class 10 SD Card - $8 - $10 from Amazon
• USB Wall Charger and Micro USB Cable - $5 - $10

Optional Hardware

• Miniature USB Wifi Adapter - $12

Operating System

• ArchLinux ARM - Download from raspberrypi.org/downloads

Custom Software Components (This repository)

• flowd - The flow daemon, captures beer pours using the flow sensor
• kegnet-client - The KegNet client daemon - transmits temperature and pours to the KegNet servers

Client software should be simple, efficient, minimalistic, and rely on operating system provided facilities as much as possible.