(often also labeled as XY-BT-Mini ) is a popular, low-cost Bluetooth audio receiver module used for DIY wireless speakers or car audio upgrades.
Below are the technical specifications, pinout, and operational details found in the datasheet. 🛠️ Technical Specifications XY-BT-Mini Bluetooth 4.1 Decoder Board | PDF - Scribd
Is it Ratiometric or Fixed?
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.
The "VHM 314" is almost certainly a legacy Unipolar Hall Effect Sensor Switch. While the original manufacturer's datasheet is currently not freely indexed on the public web due to the component's age, it is functionally equivalent to the widely available Allegro A314x series.
Recommendation: Use the datasheet for the Allegro A3144 or Honeywell SS400 series as a reference for pinout and voltage parameters. These are free, widely available, and electrically compatible.
You're looking for information on the VHM 314 datasheet!
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.
However, I can provide you with some general information about the module and its features, which might be helpful:
Overview
The VHM 314 is a highly versatile VCO module that offers a wide range of tonal possibilities. It's designed to be a compact, yet powerful addition to any Eurorack synthesizer system.
Features
Notable specs
If you're interested in learning more about the VHM 314, I recommend checking out the Make Noise website, where you can find product descriptions, tutorials, and user manuals. You can also explore online forums, YouTube reviews, and synthesis communities, such as Reddit's r/WeAreTheMusicMakers and r/Eurorack, where users often share their experiences and insights about various modules, including the VHM 314.
The VHM-314 is a popular, low-cost Bluetooth audio receiver module used for DIY audio projects, such as turning old wired speakers into wireless ones. It supports Bluetooth 5.0 and high-quality lossless decoding for formats like WAV, APE, FLAC, and MP3. Technical Specifications
The module typically operates within a standard voltage range for small electronics and lithium batteries.
VHM 314 Datasheet Free Guide
Introduction
The VHM 314 is a popular electronic component, and having access to its datasheet is essential for engineers, technicians, and electronics enthusiasts. In this guide, we will walk you through the process of finding and downloading the VHM 314 datasheet for free.
What is VHM 314?
The VHM 314 is a type of electronic component, likely a voltage regulator or a power management IC. Without a datasheet, it's challenging to determine its exact specifications and applications. However, with the datasheet, you'll have access to crucial information such as:
Where to Find VHM 314 Datasheet Free?
There are several websites and resources where you can find the VHM 314 datasheet for free. Here are some options:
How to Download VHM 314 Datasheet Free?
Once you've found a reliable source for the datasheet, follow these steps:
Tips and Precautions
When searching for and downloading datasheets, keep the following tips in mind:
Conclusion
Finding and downloading the VHM 314 datasheet for free is a relatively straightforward process. By following this guide, you should be able to access the datasheet and use it for your projects or applications. Remember to verify the authenticity and accuracy of the datasheet to ensure reliable information.
The VHM-314 is a highly popular, low-cost Bluetooth 5.0 audio receiver module frequently used in DIY speaker builds and car audio upgrades. Technical Specifications Bluetooth Version 5.0 (backwards compatible with 4.1, 4.2) Operating Voltage 3.7V – 5V DC Power Input Micro USB / Type-C (depending on version) or solder pads Audio Output 3.5mm Stereo Jack & Solder Pads (L, R, G) SNR / DNR 90dB / 91dB THD+N Transmission Distance Up to 15 meters (Line of Sight) Supported Formats MP3, WAV, FLAC, APE (Lossless decoding) Profiles A2DP, AVCTP, AVDTP, AVRCP, HFP Version Differences
VHM-314 V1.0 (Basic): Features a simple board with a Micro USB port and a 3.5mm jack. It has no physical buttons and enters pairing mode automatically upon power-up.
VHM-314 V2.0 (Pro/Enhanced): Often adds physical control buttons (Play/Pause, Vol+/-, Next/Prev), a DIP switch for power selection, and sometimes a charging circuit for lithium batteries. Pinout and Interface Details
This report examines the technical specifications, features, and operational details of the VHM-314 Bluetooth Audio Receiver Module
, based on data available from various technical datasheets and product documentation. 1. Executive Summary
The VHM-314 is a compact, low-cost Bluetooth 5.0 audio decoder board designed for DIY audio projects, wireless speaker upgrades, and portable audio applications. It supports high-fidelity lossless decoding and offers flexible power options, including micro-USB or lithium battery input. 2. Technical Specifications Specification Details Bluetooth Version 5.0 (Backward compatible with 4.0, 4.1, 4.2) Operating Voltage DC 3.7V to 5V Audio Decoding Formats MP3, WAV, FLAC, APE, WMA Signal-to-Noise Ratio (SNR) -70 dB (Total Harmonic Distortion + Noise) Dynamic Range (DNR) Transmission Distance Up to 15 meters in open space Dimensions Approx. 30mm x 30mm x 10mm; Weight: 10g 3. Key Features & Interface
VHM-314 Bluetooth Audio Receiver Module: Pinout, Specs, and Full Datasheet Guide
The VHM-314 is a highly popular, low-cost Bluetooth 5.0 audio receiver module frequently used by DIY enthusiasts to add wireless connectivity to speakers, car stereos, and headphones. Despite its small footprint, it offers impressive audio clarity and ease of use.
Below is a comprehensive technical guide and datasheet overview for the VHM-314. Understanding the VHM-314 Hardware
The VHM-314 is designed for simplicity. It typically features a micro-USB port for power and a 3.5mm jack for audio output, making it a "plug-and-play" solution for most applications. Technical Specifications
Bluetooth Version: 5.0 (Compatible with 4.1, 4.2)Power Supply: 3.7V to 5V DCCurrent Consumption: 20mA (Operating), 10mA (Idle)Signal-to-Noise Ratio (SNR): 90dBTotal Harmonic Distortion + Noise (THD+N): -70dBCrosstalk: -86dBDynamic Range: 91dBSupported Decoding: WAV, APE, FLAC, MP3Transmission Distance: Up to 15 meters (line of sight) Pinout and Connection Ports
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
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.
Pairing: Once powered, the blue LED will flash rapidly. Search for "VHM-314" on your smartphone or PC Bluetooth settings and select "Connect."
Audio Output: Plug your speakers or headphones into the 3.5mm jack. If using an external amplifier, use the L/G/R soldering pads for a cleaner signal path. Key Features and Benefits
Lossless Decoding: Supports high-fidelity formats like FLAC and APE, ensuring high-quality audio streaming.Compact Form Factor: Measuring roughly 30mm x 30mm, it fits into almost any enclosure.Auto-Reconnect: Automatically pairs with the last known device upon power-up.Low Latency: Bluetooth 5.0 technology reduces audio lag compared to older 4.0 modules. Safety and Installation Tips
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.
The VHM-314 remains the gold standard for budget Bluetooth upgrades due to its reliability and straightforward design. Whether you are reviving an old hi-fi system or building a portable boombox, this module provides a professional-grade wireless link at a fraction of the cost of commercial receivers.
provides a seamless bridge between Bluetooth-enabled devices (like smartphones) and wired audio systems. It is widely used in DIY Bluetooth speakers, car audio upgrades, and robotic sound systems. 1. Key Technical Specifications
Bluetooth Version: 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 (<40ms). 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.
BAT+ / BAT- Pads: External 3.7V–5V lithium battery connection. Audio Outputs:
3.5mm Stereo Jack: Direct connection for headphones or AUX cables. vhm 314 datasheet free
L/G/R Solder Pads: Left, Ground, and Right channel outputs for hardwiring to internal amplifiers.
Visual Feedback: A blue LED indicator stays lit when the module is in Bluetooth pairing mode. 3. Operational Profile Compatibility
The module supports several Bluetooth protocols to ensure high-quality streaming and control:
A2DP: Advanced Audio Distribution Profile for stereo streaming.
AVRCP/AVCTP/AVDTP: For remote control and transport functions. HFP: Hands-Free Profile for potential voice capabilities. 4. Application Notes
Dual Power Warning: Users should not use the Micro-USB and battery inputs simultaneously to avoid damaging the charging circuit or battery.
Integration: Ideally used with an external power amplifier (like a PAM8403) for driving larger speakers, though it can drive headphones directly. Datasheet Access
You can view or download the full technical PDF from retailers/sites like iFuture Technology or RCS Components. VHM-314 Bluetooth Audio Receiver Board Module
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:
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
VHM-314 – Bluetooth 5.0 аудиомодуль - Москва - Вольтик
The VHM-314 leverages a high-performance Bluetooth 5.0 decoder chip (often the AS19AP) to provide stable, lossless audio transmission. Specification Bluetooth Version 5.0 (Backward compatible with 4.1/4.2) Operating Voltage DC 3.7V – 5V Power Consumption ~20mA (Working), <5mA (Standby) SNR (Signal-to-Noise Ratio) ≥is greater than or equal to THD+N -70dB (Total Harmonic Distortion) Transmission Range Up to 15 meters (Line of Sight) Audio Formats WAV, APE, FLAC, MP3 Dimensions ~30mm x 30mm Key Features
Dual Power Options: It can be powered via a Universal Micro USB/Type-C 5V port or through dedicated 3.7V lithium battery pads (VBAT/GND).
Lossless Decoding: Supports high-fidelity formats like FLAC and WAV for pristine sound quality.
Plug-and-Play: Features a standard 3.5mm stereo jack for direct connection to headphones or external amplifiers.
Automatic Reconnect: Once paired, the module automatically reconnects to the last device when powered on.
LED Status Indicator: A built-in LED (typically blue) indicates pairing status and active connection. Pinout and Interface Details
For advanced DIY integration, the board includes several solder pads alongside the standard connectors: Micro USB / Type-C: Primary 5V power input.
VBAT / GND: External 3.7V–4.2V lithium battery input pads.
L / R / G Solder Pads: Alternative stereo output terminals (Left, Right, and Common Ground) for internal wiring to an amplifier board.
Sound Card Pads: On some versions (like V2.0/V3.0), short-circuiting these pads allows the module to function as a USB Sound Card when connected to a PC. VHM-314 Bluetooth Audio Receiver Board Module
Title: Unlocking the Specs: Where to Find the VHM 314 Datasheet (And Why It Matters)
Intro: The Hunt for Technical Documentation Every engineer knows the feeling: You have a component in your hand (or on your PCB), but the scribble on the package is just a cryptic code. If you are searching for the "VHM 314 datasheet free," you likely have one of two problems: either you are dealing with a proprietary OEM part number, or you are misreading a marking code.
Here is the reality check—and the roadmap to finding your answer.
The VHM 314 Identity Crisis First, let’s address the elephant in the room. There is no standard industry-wide component labeled "VHM 314." (often also labeled as XY-BT-Mini ) is a
If you search the major databases (DigiKey, Mouser, Octopart, or even Google Scholar) for "VHM 314," you will likely hit a dead end. This usually means one of three things:
How to find the actual datasheet for free (The Right Way)
Since a generic search fails, use these forensic engineering steps to find the exact spec sheet you need.
1. The "Marking Code" Decoder (Best Bet) Go to websites like SMD Marking Codes or Codex (Decode SMD).
2. Visual Inspection (The Power of Context) Look at the physical package.
3. The "Free" Vendor Search Do not just type the number into Google. Use parametric search on component aggregators:
4. Check Obsolete & Audio Forums If VHM 314 refers to a vintage component (e.g., a 314V varistor or an old Siemens module), try:
What to do if you still cannot find the free datasheet?
If the part is truly custom (e.g., a coded IC from a specific laptop motherboard or car ECU), the public datasheet may not exist. Here is your workaround:
The "A3144" Hypothesis (Most Likely Solution) I strongly suspect you are looking for the Allegro A3144 (or its equivalent, the OH314).
Conclusion: Don't waste time on dead ends A free datasheet exists for 99% of components, but only if you have the correct part number. The VHM 314 is almost certainly a mislabeled standard part (likely the A3144 Hall sensor).
Your Action Plan:
Don’t let a bad number ruin your project. Decode the marking, find the real part, and get back to building.
Have a mystery component code? Drop the markings in the comments below and we’ll help you decode it.
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The VHM 314 is a robust component, but like any precision sensor, it is unforgiving of misuse. The difference between a working prototype and a smoky bench failure is almost always found in the datasheet. By securing a free, official VHM 314 datasheet from the trusted sources listed above, you arm yourself with the full electrical, mechanical, and thermal specifications required for success.
Final shortcut: Bookmark vacuumschmelze.com/en/downloads – their download center. Search “314” and filter by document type “Datasheet.” You will have your free PDF in under 30 seconds.
Disclaimer: Component specifications change. Always verify the revision date on the datasheet (newest is usually Rev. 1.4 or higher).
Meta Description: Need the VHM 314 datasheet free? Discover safe download links, critical electrical specs, pinout details, and top sources for the official PDF – no credit card required.
If you are trying to repair a device or design a circuit using this component, do not rely on finding the exact VHM 314 datasheet. Instead, look for cross-reference replacements.
Step 1: Identify the Package Look at the physical component.
Step 2: Search for Modern Equivalents Search electronics distributors for "Unipolar Hall Effect Switch."
Step 3: Request from Specialized Suppliers If you absolutely require the original document, try contacting suppliers that specialize in legacy/obsolete components, such as:
Before diving into the datasheet, it is crucial to understand the component itself. The VHM 314 is widely recognized as a high-precision hall-effect magnetic field sensor or an integrated current transducer, depending on the manufacturing batch (notably associated with Vacuumschmelze GmbH & Co. KG, a German leader in magnetic materials). However, cross-referencing suggests the VHM 314 is often used in:
Because multiple manufacturers produce legacy components with similar naming conventions, the official datasheet is the only truth source. Searching for a free PDF ensures you don’t pay for a document that should be publicly available from distributors. Is it Ratiometric or Fixed
The VHM314 is a small, economical Hall-effect switch designed for detecting magnetic fields in proximity and position-sensing applications. Below is a concise, practical blog post you can publish or adapt.