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. 2019 Aug 12;7(8):e11280. doi: 10.1002/aps3.11280

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© 2019 Grindstaff et al. Applications in Plant Sciences is published by Wiley Periodicals, Inc. on behalf of the Botanical Society of America

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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A diagram showing the connections between the Raspberry Pi and the attached peripheries and the Raspberry Pi GPIO pinout. Illustrated are the connections for the light intensity sensor (TSL2591) to the GPIO pins: pin 3 for SDA (serial data), pin 5 for SCL (serial clock), pin 9 for ground, and pin 17 for 3.3‐V power. The diagram also illustrates the connection of the temperature and humidity sensor (DHT22) to the GPIO pins: pin 1 supplying 3.3‐V power, pin 6 for ground, and pin 11 for data. In addition, the figure shows where the resistor should be soldered between the power and data wire for the temperature and humidity sensor (DHT22). Finally, it shows where the ribbon cable from the camera board is connected to the Raspberry Pi.