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General tips

Boot and reset buttons

When looking at the PLT-1B in the below orientation, the reset button is on the left and the boot button is on the right by the USB-C port.

PLT-1B diagram labeling the reset button on the left and the boot button and USB-C port on the right

LTR390 UV

For the most accurate UV and LUX readings, be sure to expose the sensor circled in the image below to light.

PLT-1B diagram with the LTR390 UV sensor circled in the top left corner