The Flora pixels are all connected to common ground bus, as well as a common power bus connected to VBATT. The Flora pixel data bus is connected to D6. The microphone amplifier is connected to 3.3V, GND, and D9.This guide was first published on Feb 27, 2013. It was last updated on Oct 15, 2018. This page (Circuit Diagram) was last updated on May 04, 2015.