Built-in Bluetooth 5.0 protocol providing a stable range up to 10–15 meters.
: A2DP (Advanced Audio Distribution Profile) and AVRCP (Audio/Video Remote Control Profile). Operating Voltage : 3.7V to 5V DC.
If you are working with this specific PCB version, here are the common ways it is used in the hobbyist community:
The is a compact, high-performance Bluetooth 5.0 audio receiver board engineered for wireless audio streaming, custom speaker builds, and legacy audio retrofitting. This printed circuit board (PCB) serves as an all-in-one wireless audio solution, bridging the gap between digital Bluetooth transmitters (like smartphones) and traditional analog amplifiers or speakers. Technical Specifications & Architecture
Bluetooth Class2 operation (up to 10 meters range). Radio includes integrated balun 5-band fully configurable EQ. FCC Report
Features a built-in RF antenna for stable wireless communication within standard Bluetooth ranges.
Features a 5V USB charging port for battery charging (limited current)
Using a module based on "Bk-m33-bt-v2.pcb" in your embedded project involves hardware and software steps.
: Audio ground, isolated from the digital ground plane to minimize high-frequency buzz or digital switching hiss.
