Arduino Shield (expansion board) for Precision Agriculture (PA). This shield allows to connect multiple commercial sensors, used in the context of the PA, to the Arduino.

This Shield supports the connection of sensors with the following outputs:

• SDI-12
• I²C
• 4-20 mA output
• Voltage output
• Frequency output

The following libraries are required for the operation of the Agro-Shield:

• FreqPeriod (Frequency Measurement Library)
• RTClib (Real Time Clock Library)
• Wire (Wire Library)
• SDI-12 (SDI-12 Library)

Simulated* (Top)	Simulated* (Bottom)
(click on the image to see in full size)	(click on the image to see in full size)

Real PCB
(click on the image to see in full size)

^{*Simulation obtained using POV-Ray software: povray.org}