Here is the module broken up into sections by color (and numerically for the
color-vision impared).
1. Power
Powering the RN-52 is very simple. There are three pins necessary to
power the board, 3.3V, GND, and power enable (PWR_EN). The supply
voltage should be in the 3.0 ~ 3.6V range.
2. GPIO Pins
The RN-52 has eleven general purpose input/output pins (GPIO). Many of
these pins are reserved for special functions when the module is booted up
and when the module is running. These pins also act as input pins for
specific functions during audio playback. These can be configured to
control media programs such as iTunes or Windows Media Player (eg.
Play, Pause, Next Song, etc.).
Page 4 of 14
