Garden Computer

Functions

The garden computer automatically maintains the garden in an intelligent way and streams data to a server where it can be viewed in real time or plotted historically. An informational video and possibly live data should also be available on a screen at the instillation.

Weather Monitoring

• Sunlight
• Temperature
• Humidity
• Wind speed and direction
• Barometric pressure
• Precipitation
• Ambient noise level?

Soil monitoring

• Moisture
• Ph?

Control

• Watering
• Ph?
• Fertilizer?

100% solar powered

Live data and historical data

Live pictures and time laps videos

Electronics Architecture

BeagleBone embedded computer running Ubuntu Linux

• Weather Cape
• VGA, LCD or other display cape, or just put a big QR code on the display for people to scan with their smart phones and watch the video (and live data) there.
• USB wifi adapter
• GPIO to valves etc.

Pan Tilt Wifi camera for live streaming and time-laps

Sparkfun weather station

Soil moisture sensors

Soil PH sensors?

Electrically actuated valves

Solar power panel and SLA battery

Software Architecture

Gardenbot – open source project is a good place to start for the garden control software

Data Streaming

Sensor data periodically sent to server as HTTP GET / POST

Web access (server functions)

• Real time data
  • webpage
  • JSON stream API
• Historical data
  • Plots – selectable time window and channels
  • Download – selectable time window and sub-sampling
    • JSON
    • CSV
    • XML