• Serial Terminal Basics
• What is Arduino?
• Serial Communications
• How to Use a Breadboard
The RN-52 Module
Before we get in to the breakout board, let’s discuss the module and its
features.
As with any product, it is wise to read the datasheet before embedding this
device into a project.
Bluetooth Version
The RN-52 is a Bluetooth v3.0 module. It is compatible with all Bluetooth
v3.0 devices and also backwards compatible with all Bluetooth v2.1 + EDR,
1.2, and 1.1 devices.
Bluetooth Profiles
Here is a list of all the profiles that the RN-52 supports.
•
SPP
- Serial Port Profile allows you to configure the device over a
UART serial connection. This can also be used to send commands to
the module from a microcontroller.
•
HFP/HSP
- Support of both Hands-Free Profile and Headset Profile
mean the module can act as a headset device. This allows the it to
send audio back and forth, just like a Bluetooth headset. You can
send audio input through a microphone and receive audio output
through a speaker or headphones.
•
A2DP
- Advanced Audio Distribution Profile sends audio in one
direction, but the quality of that audio is better than the quality of HFP
and HSP.
•
AVRCP
- A/V Remote Control Profile allows you to control certain
features of your audio through the module. Tasks such as
Play/Pause, Volume Up, and Volume Down can be controlled by
inputs on the module.
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