HC-05 Bluetooth Chip Core Module

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Product Description
HC-05 Bluetooth stereo receiver module design based on CSR Blue Core5. With high integration, small size and other features, just with a few external components to achieve its powerful. With the A2DP, AVRCP transmission and remote control protocol any Bluetooth source device (such as: Bluetooth-enabled mobile phones, Bluetooth stereo audio transmitter modules, Bluetooth adapter, etc.) to establish a connection to the wireless receiver to achieve high-quality stereo audio stream and audio player with remote control. ED05 stereo Bluetooth module to provide users with a remote control button interface, work status indication interface, stereo audio output jack, microphone input interface.

Feature
  • Class2, power level.
  • Built-in lithium battery charging circuit.
  • Powerful noise elimination circuit.
  • The effective transmission distance of up to 20 meters.
  • Very small surface mount packages: 15x21mm.
  • Follow the Bluetooth V2.1 + EDR Bluetooth specification
  • With SBC, MP3, AAC audio decoder function.
  • With the A2DP and AVRCP are high quality stereo audio transmission protocol with the remote control.
  • Embedded powerful Kalimba DSP data processor to complete a variety of digital speech processing.

Applications
  • Various types of high-quality Bluetooth stereo headphones.
  • Various types of high-quality Bluetooth stereo speakers, stereo.
  • All kinds of high-quality wireless Bluetooth stereo audio receiver equipment.


Documentation
Schematic
Module Map
Pin Definiton
Pin NumberDefinitionInput/OutputDescription
1GNDInput/OutputPower Supply GND
2PIO_14Input/OutputProgrammable I/O
3PIO_5OutputProgrammable I/O
4RSTInputexternal reset
5SPI_MOSICMOS InputSPI data input
6SPI_CLKCMOS InputSPI clock
7SPI_CSBCMOS InputCPI chip select
8SPI_MISOCMOS OutputSPI data output
9RLEDOutputstatus LED 1, normally connect to red
10BLEDOutputstatus LED 2, normally connect to blue
11VREGInputON/OFF, pairing, answering phone
121V8Output1.8V power output
13VBATInputlithium battery power supply input terminal end
14CHGInputlithium battery power charging input terminal end
15GNDInput/OutputPower Supply GND
16MIC_BIASOutputmicrophone power supply
17MIC_RPInputPositive terminal of the the microphone right channel differential input
18MIC_RNInputNegative terminal of the the microphone right channel differential input
19MIC_LPInputPositive terminal of the the microphone left channel differential input
20MIC_LNInputNegtive terminal of the the microphone left channel differential input
21GNDInput/OutputAudio GND
22SPK_RNOutputStereo right channel differential output negative terminal
23SPK_RPOutputStereo right channel differential output positive terminal
24SPK_LNOutputStereo left channel differential output negative terminal
25SPK_LPOutputStereo lfet channel differential output positive terminal
26PIO_13Input/OutputProgrammable I/O
27PIO_11Input/OutputProgrammable I/O
28PIO_12Input/OutputProgrammable I/O
29PIO_9Input/OutputProgrammable I/O
30GNDInput/OutputPower Supply GND

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