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. Author manuscript; available in PMC: 2019 Feb 13.
Published in final edited form as: HardwareX. 2017 Oct 31;3:135–145. doi: 10.1016/j.ohx.2017.10.002

Fig. 2.

Fig. 2

Photograph of the top (A) and bottom (B) side of an assembled KATARA shield. The top side of the KATARA shield has stackable headers, a power supply jack, and terminal blocks to attach solenoid valves. The bottom side has amplifying circuitry and the stackable header pins that plug into an Arduino Mega.