is a highly popular, low-cost solution for wireless audio modification projects. This ultra-compact decoder board allows maker enthusiasts to instantly upgrade legacy wired speakers, old car stereos, and vintage amplifiers into modern Bluetooth-enabled devices.
This comprehensive technical guide serves as a complete datasheet and implementation resource, covering technical specifications, wiring configurations, and hardware troubleshooting for DIY audio designs. Core Technical Specifications
Micro-USB Port: Power the module using any standard 5V USB charger or power bank.BAT Pads (+ and -): Connect a 3.7V Lithium-ion battery for portable use.3.5mm Stereo Jack: Connect directly to headphones or an amplifier input.Audio Output Pads (L, G, R): Direct soldering points for Left channel, Ground, and Right channel for permanent installations.LED Indicator: Blue light flashes during pairing and stays solid when connected. How to Use the VHM-314
The VHM 314 boasts an impressive set of features that make it an ideal choice for various applications. Some of its key features include: vhm 314 datasheet free
Most VHM 314 variants operate between . The datasheet will specify if it is a 5V-only device or if it supports 12V industrial rails. Look for the "Supply Voltage Rejection Ratio" – how well the device ignores noise on the power line.
The VHM-314 is a versatile, low-cost Bluetooth 5.0 audio receiver module featuring a 3.5mm stereo output and supporting lossless audio formats, with operating voltages between 3.7V and 5V. Available in multiple iterations, the board is commonly used for DIY audio projects and features an onboard LED to indicate pairing status. Access the technical specifications and documentation in this datasheet .
: Features a standard 3.5mm stereo jack for direct connection to headphones or external amplifiers. is a highly popular, low-cost solution for wireless
Turn on Bluetooth on your source device (Phone, Tablet, PC). Search for nearby devices and select .
is a popular, low-cost Bluetooth 5.0 audio receiver module frequently used in DIY audio projects. While a formal multi-page "datasheet" from a single manufacturer can be hard to find, the technical specifications and interface details are well-documented across several supplier resources. 📋 Key Technical Specifications Bluetooth Version: 5.0 (backward compatible with 4.0, 4.1, and 4.2) Operating Voltage: 3.7V to 5V DC Power Options:
: Supports high-fidelity formats like FLAC and WAV for pristine sound quality. The datasheet will specify if it is a
Go directly to vacuumschmelze.com . Navigate to their “Products” > “Magnetic Sensors” or “Current Sensors” section. Use their search bar for “VHM 314”. Once found, the download button delivers a clean, watermarked-free PDF.
Positive terminal for 3.7V Lithium battery supply (3.7V - 4.2V). GND Pad: Ground terminal for the power supply. Audio Outputs
is a highly popular, low-cost solution for converting wired sound systems into wireless setups. Built around the , this ultra-compact decoder board supports lossless audio formats while consuming very little power.
Micro USB (5V) or external solder pads for a 3.7V Lithium battery Audio SNR: Total Harmonic Distortion (THD+N): Crosstalk: Transmission Distance: Up to 15 meters in open space Supported Decodes: MP3, WAV, FLAC, APE Dimensions: ElectroPeak 🔌 Interface and Controls