3.7V to 5V DC (supports LiPo batteries via pads or USB power). Bluetooth Version: 5.0 (supports 4.0/4.1/4.2). Audio Output: 3.5mm Stereo Jack + solder pads (L/G/R). Decoding Formats: WAV, APE, FLAC, MP3 (lossless decoding). Performance: SNR (Signal-to-Noise Ratio): -70dB (approx. 0.1%). Transmission Distance: Up to 15 meters in open space. Raspberry Pi Official Magazine Version Variations
| Parameter | Estimated Value | Notes | | :--- | :--- | :--- | | | Unipolar Hall Effect Switch | Digital Output | | Operating Voltage | 3.8V – 30V DC | Typically 5V or 12V logic compatible. | | Supply Current | ~5mA – 10mA | Typical internal current draw. | | Output Type | Open Collector ( sinking ) | Requires a pull-up resistor to function. | | Magnetic Trip Point (Bop) | 30 – 80 Gauss (approx.) | Sensitivity varies by grade (A, B, C). | | Release Point (Brp) | 10 – 50 Gauss (approx.) | Hysteresis ensures clean switching. | | Temperature Range | -40°C to +85°C (Industrial) | Some VHM series extend to 125°C (Automotive). | | Package | SOT-23 or TO-92 | 3-pin configuration. |
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
Provides the audio output to connect directly to headphones, active speakers, or an amplifier. vhm 314 datasheet free
The following table summarizes the key technical data found in the VHM-314 technical documentation: Specification VHM-314 V2.0 Bluetooth Version Bluetooth 5.0 (Compatible with 4.x) Operating Voltage 3.7V - 5V DC (Li-ion/Micro USB) SNR (Signal-to-Noise Ratio) THD+N (Distortion) -70 dB or ≤ 0.1% DNR (Dynamic Range) Audio Output 3.5mm Stereo Jack + 3-pin L/G/R output Supported Formats WAV, APE, FLAC, MP3 Transmission Distance Up to 15 meters (open space) Bluetooth Profiles A2DP, AVCTP, AVDTP, AVRCP, HFP VHM-314 Pinout and Interface Details
Note: The basic VHM-314 does not include a battery charging circuit. If you use a rechargeable Lithium battery, you must use an external charging module (like a TP4056) to recharge the battery safely. 5. How to Pair and Operate
Audio is actively streaming or playing through the module. Bluetooth Pairing Process Supply power to the board via USB or the BAT pads. Decoding Formats: WAV, APE, FLAC, MP3 (lossless decoding)
Powering the Module: Supply 5V via the Micro-USB port or solder a 3.7V battery to the BAT terminals. Note: Do not supply 5V to the battery pads as it lacks a charging circuit.
Creating a Bluetooth receiver for a home theater setup. Where to Find VHM-314 Datasheet Free
The VHM-314 is favored for its simplicity and decent performance. While different versions of the module exist, the following are the most consistently reported technical specifications: Transmission Distance: Up to 15 meters in open space
The is a versatile and compact Bluetooth 5.0 audio receiver module widely used by hobbyists to add wireless audio to car stereos, old speakers, and DIY headphone builds. You can find various technical documentation and a VHM-314 v2.0 datasheet for free through authorized electronics retailers like ABC-RC and ElectroPeak . Key Technical Specifications
Comprehensive Guide to the VHM-314 Bluetooth Audio Receiver Module: Datasheet, Pinout, and Specifications
The VHM 314 is a popular voltage-controlled oscillator (VCO) module designed by Make Noise, a renowned brand in the Eurorack synthesizer community. Unfortunately, I couldn't find a publicly available, free datasheet for the VHM 314.