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PCB from the top. Left: Board rendering showing 3-pin JST location for SDI-12 sensor (SW_D11, red box), 4-pin JST locations for i2c sensors (J1, J3, black boxes), and header (orange boxes). Right: PCB populated with JSTs and male headers. Note orientation of notches for each connector for proper wire color agreement. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
