The Bluetooth module designed exclusively for Bluetooth speaker products, enabling seamless reception of Bluetooth audio streams and amplification to connected speakers. This versatile module not only facilitates audio playback but also allows you to control your mobile phone or PC through integrated full-duplex hands-free functionality, making it an ideal choice for creating sophisticated Bluetooth audio products.

 

Features:

• Bluetooth 2.1 + EDR compliant for reliable and efficient wireless communication.
• Supports A2DP v1.2, AVRCP v1.0, and HFP v1.5 profiles, ensuring compatibility with various Bluetooth devices.
• Integrated stereo ADC and stereo DAC for high-quality audio processing.
• Five bands hardware equalizer for fine-tuning audio output.
• Digital equalizer for stereo line-in, expanding connectivity options.
• Full-duplex hands-free speakerphone functionality embedded within the module.
• Built-in lithium battery charging circuit with a charge current of 250mA.
• Applications include Bluetooth stereo speakers, Bluetooth stereo headsets, Bluetooth control, and multimedia hybrid devices.

 

Specifications:

• Bluetooth Specification: Bluetooth V2.1
• Supply Voltage: DC 3.3-4.2V, Automatic shutdown ≤ 2.9V, Call the police ≤ 3.1V
• Bluetooth Protocol Support: HFPV1.5, A2DPV1.2, AVRCPV1.4, HSP1.2, GAVDP1.2, IOP
• Working Current: ≤ 60mA
• Standby Current: < 500uA
• Temperature Range: -40°C to +85°C
• Wireless Transmission Range: ≤ 10 Meters
• Transmit Power: Class2 4dbm
• Sensitivity: -80dBm, <0.1% BER
• Frequency Range: 2.4GHz ~ 2.480GHz
• External Interface: Serial (TTL Level, 3.3V)
• Audio Performance: SBC decoding
• Module Size: 25x13.5x1.8mm
• Size of Adapter Plate: 21x29mm

 

Pinout:

PIN	NAME	Description
1	GND	Ground for antenna
2	ANT	Antenna, default off, internal is used
3	GND	Ground for antenna
4	VOL + (TMS)	Volume up, JTAG
5	VOL - (TCK)	Volume down, JTAG
6	NEXT (TDO)	Next track, JTAG
7	PREV (TDI)	Previous track, JTAG
8	#RST	Reset, active LOW
9	MBISTEN	Unused
10	TX(GPIO0)	3.3V UART TX
11	RX(GPIO1)	3.3V UART RX
12	PP/CALL (GPIO2)	Play / Pause / phone / releases / re-pair
13	LED0 (GPIO3)	Status Indicator
14	LED1 (GPIO4)	Status Indicator
15	MUTE (GPIO5)	Mute Control (mute output low), control terminal of the power amplifier
16	GND	Power ground
17	AGND	AUX ground
18	#AUX_DET (GPIO11)	AUX Insertion detection (active low)
19	AUX_R	AUX Right channel input
20	AUX_L	AUX Left channel input
21	MIC_N	Microphone negative terminal
22	MIC_P	Microphone positive terminal
23	VMIC	Microphone bias voltage
24	LN	Audio left differential output negative end
25	LP	Audio left positive differential output terminal
26	RP	Audio right differential output positive terminal
27	RN	Audio right differential output negative end
28	VBUS	Unused
29	VBAT	Power input (3.3 ~ 4.2V)
30	3V0	3.3V

 

 

Project for Bluetooth Stereo Audio Module Transmission BK8000L Available on this link: https://github.com/tomaskovacik/kicad-library/tree/master/library/datasheet/F-6188_BK8000L

 

Package includes:
1 x Audio Bluetooth Receiver with Command Transmission and Stereo Amplifier Module BK8000L