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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
Standard 5V power input. Can be powered by a phone charger, power bank, or computer USB port. vhm 314 datasheet free
| 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. |
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: user wants a long article optimized for the
Bluetooth 5.0 core compatibility for stable, long-range connection. 2. Technical Specifications
Providing audio feedback or voice synthesis for robots. search results show that VHM-314 is a Bluetooth
Open the Bluetooth settings on your smartphone, tablet, or computer. Scan for new devices. The module will appear in your list under the name . Select it to pair. No password or PIN code is required. Step 3: Playing Audio
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.