Solid Blue: The module is successfully paired and connected to a device. Operational Guide
VHM-314 Bluetooth Audio Receiver Module: Complete Datasheet and Application Guide vhm 314 datasheet free
Standard AUX output. Directly plug in headphones, AUX cables, or computer speakers. Solid Blue: The module is successfully paired and
Avoid mounting the module inside an enclosed metal box, as metal will block the wireless signal. Avoid mounting the module inside an enclosed metal
(For precise numeric values — Bop, Brp, output current, propagation delay, and absolute maximum ratings — refer to the manufacturer datasheet.)
While official datasheets from various generic manufacturers can be difficult to source in a single document, the verified electrical and operating parameters of the VHM-314 are detailed below. Specification Value Note / Condition Via Micro-USB port Power Supply (Pads) 3.7V to 5V DC Via BAT/VCC solder pads Lithium Battery Support Yes (3.7V Lipos) No built-in charging circuit Bluetooth Version Bluetooth 5.0 / 4.1 / 4.0 Core decoding IC varies by batch Supported Protocols A2DP, AVCTP, AVDTP, AVRCP, HFP Audio transmission profiles Signal-to-Noise Ratio (SNR) Low-noise floor output Total Harmonic Distortion (THD+N) Clear audio reproduction Crosstalk Excellent stereo separation Transmission Distance up to 15 meters Open air, unobstructed Audio Output 3.5mm Stereo / Solder Pads Line-level output 3. Pinout and Interface Description