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If you are getting tired of all those cables you need just to listen to your favorite song over speakers, what you need is BT Audio click with Microchip’s RN52 Bluetooth audio module. With onboard 3.5mm jacks for both a microphone and a speaker, this is a complete solution for streaming audio from a smartphone or PC over a wireless connection.
RN52 Bluetooth audio module
Audio decoders: SBC, AAC, aptX
Digital signal processor
Embedded Bluetooth profiles: A2DP, AVRCP, HFP/HSP and SPP
Integrated Amplifier for Driving 16Ω Speakers
Green LED indicates power is on
Operational range of 10m in open space
RF TX power 4dBm
Maximum Data Rate 3 Mbps
Frequency Band 2.4 ~ 2.48 GHz
3.5 mm Audio jacks for speaker and microphone
3.3V power supply
Bluetooth class 2 radio and DSP processor combined
Microchip’s RN52 Bluetooth audio module delivers high quality audio in small form factor (26.0 mm x 13.5 mm x 2.7 mm). The module combines a class 2 Bluetooth radio and an embedded DSP processor, controlled and configured by simple ASCII commands.
BT Audio Click can stream audio files
DSP, or digital signal processor, is what makes this module special, because it can actually stream audio – it converts and compresses the radio waves sent from your phone or computer into digital data, and then sends it to your speakers or headphones.
As a use case example, we built a multimedia station project. Read about it in this tutorial.
Quality of sound over Bluetooth
The module supports aptX, audio codec for high quality stereo audio streaming over a Bluetooth connection. So the quality of the sound is not something you will have to compromise on, as aptX encodes a CD-quality (16-bit / 44.1kHz) audio stream.
The RN52 module supports HSP/HFP, A2DP, AVRCP and SPP, as well as digital I/O, stereo speaker output, stereo microphone input. The module also supports iAP profile discovery for connecting the BT Audio click to Apple devices like, iPods, iPhones or MAC computers.
HSP/HFP stands for Hands-Free Profile and Headset Profile for an audio connection between Bluetooth on your phone and the headset.
BT Audio click has a 10m range in open space. The range is smaller indoors, but still enough to cover a few rooms.
BT Audio click communicates with the target board MCU through the mikroBUS™ UART interfaces, with few additional pins. The board uses a 3.3V power supply only.
See more details on the documentation page.
Wireless audio docking stations, wireless speakers and headphones, smart medical devices, VoIP handsets, intercom push-to-talk audio connection, etc.