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Audio is actively streaming or playing through the module. Bluetooth Pairing Process Supply power to the board via USB or the BAT pads. vhm 314 datasheet free
Users should not use the Micro-USB and battery inputs simultaneously to avoid damaging the charging circuit or battery.
Positive terminal for 3.7V Lithium battery supply (3.7V - 4.2V). GND Pad: Ground terminal for the power supply. Audio Outputs Do you need assistance mapping out a for your specific build
The module has several iterations with slight hardware differences: Bluetooth audio - Raspberry Pi Official Magazine
*LOS: Line of Sight, range will be shorter indoors and through walls. Bluetooth Pairing Process Supply power to the board
Power Isolation: If you experience "ground loop noise" (humming) when using the module in a car, use an isolated DC-DC power converter.Antenna Clearance: Avoid placing the module behind thick metal plates, as this will significantly reduce the Bluetooth range.No Charging Circuit: If using a battery, you must use an external TP4056 or similar charging module to recharge the battery safely.
First, it is crucial to understand exactly what the VHM-314 is. It is a standardized component from a single global source. The VHM-314 is a generic, mass-produced Bluetooth audio receiver and decoder module sold by various companies and online retailers. Consequently, its hardware specifications can vary between batches and vendors.
5.0 (backwards compatible with 4.x and lower). Operating Voltage: 3.7V to 5V DC. Signal-to-Noise Ratio (SNR): ≥90is greater than or equal to 90 Total Harmonic Distortion (THD+N): -70negative 70 Transmission Distance: Up to 15 meters (unobstructed). Supported Formats: MP3, WAV, FLAC, APE. Decoding Latency: Low latency ( 2. Hardware & Interface The module is highly compact ( ) and features multiple power and output options: Power Inputs: Micro-USB/Type-C: 5V universal power supply.