Bluetooth Wifi Module Carkit Hands-free Module

QC-2A1 module is one of our company's industry modules, specially aiming at Carkit Hands-free system R&D, design and production.
Bluetooth Carkit Hands-free Module is developed for organization, company and individual who is specialized in developing Carkit hands-free system. It realizes the combination of Bluetooth Headset profile and Bluetooth Hands-free profile as the core of Carkit Hands-free system, which is developed as the Bluetooth criterion 1.1, It supports any phones with Bluetooth criterion 1.0 or 1.1 and 1.2. To different Bluetooth mobile phones, the Bluetooth module can switch to different Profiles. JINOU Bluetooth Carkit Hands-free provides PCM/Audio interface and UART interface. The main external controller can realize application of Carkit Hands-free by UART interface, including dial-up by hand, dial-up by voice, incoming display, receive a call, refuse a call, switch freely between Hands-free and mobile phone, acoustics keep silence automatically when talking, talk volume adjustment(15 steps), LED indication etc. It memorizes multi Bluetooth phones' pairing information, and multi phones can use this module in turn without repairing.

Features
Without antenna: (external 50| , 2.4GHz antenna)size: (this product has two
kinds: with antenna or not, their size exist a little difference)With antenna
Class 2 standard
Accord with Bluetooth Hands-free Profile V0.96
Work temperature range: -20 -75 ;
Storage temperature range: -40 -85 ;
Embedded antenna or external antenna
Effective distance is 10M
Standard UART interface(default setting: baud rate 9600bit/s, 1 start bit, 8
data bit, 1 stop bit, without parity check bit)
Support many kinds of baud rate(such as 9.6k, 19.2k, 38.4k, 57.6k, 115.2k etc), the
maximum is 1.384Mbps
PCM simulate frequency interface
Energy saving automatically mode
Support low power working mode/ high speed working mode
Safe authentication data encryption
Realize agreement: LM, LC, L2cap, SDP, RFCOMM realize Headset and Hands-free
Profile(Bluetooth Headset Profile And Bluetooth Hands-free Profile)
Dial-up( start mobile's voice control dial-up function)
Talk can be switched between mobile phone and hands-free( need mobile end's
support)
The Carkit hands-free can match 3-7 mobiles meanwhile, the rule is to enter
before going
Acoustics keep silence automatically when talking
Talk volume adjustment function( volume is divided into 15 steps)
LED indicator function
Support all the phones which are accord with Bluetooth criterion 1.0, 1.1 and 1.2external main controller can realize the application of Hands-free by UART interface(UART_TX, UART_RX, UART_RTS, UART_CTS), involve AT instruction supported by Bluetooth hands-free criterion V0.96.