For a recent hackathon, a group of strangers (now friends!) created Crop Squares — a system designed to optimize crop yield by better tracking weather and soil conditions.
The event was hosted in Madrid called Future Hacks Internet of Things Edition, with the goal to build disruptive IoT solutions to help change the world. In 54 hours.
The concept behind crop squares is to make a graphical user interface using Dizmo that clearly shows the status of your crops in a grid system. For the prototype they used an Arduino Pro Mini with moisture sensors in potted plants to detect moisture levels, while a Raspberry Pi also collected weather data for the area being watched. The Arduino used an ESP8266 WiFi module to transmit the data remotely. To demonstrate how the system could be used in an automated sense, they hooked up another Arduino (this time a Leonardo), to pour water once the moisture levels dropped below a certain threshold.
Crop Squares won the Best Pitch Award as well as the Best Integration of Dizmo — good job guys!
Speaking of moisture sensors — did you know you can build your own using some plaster of paris and nails?