The piezo connects to FLORA GND and FLORA TX (digital pin 1). It does not matter which leg goes to which pin (not polar).

The UV index sensor connects as follows:

FLORA 3.3v -> sensor 3V
FLORA SDA -> sensor SDA
FLORA SCL -> sensor SCL
FLORA GND -> sensor gnd

You can use any battery pack 3-9V, though we recommend a 500mAh rechargeable lipoly battery for a good balance of long battery life and portability.

This guide was first published on Jul 23, 2014. It was last updated on Jul 23, 2014.

This page (Circuit Diagram) was last updated on Jul 23, 2014.

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