No domain name. Just an IP address: 185.34.77.19.
This comprehensive guide serves as an extended datasheet and technical manual for the VHM-314 module, compiled to give you all the necessary specifications, pin configurations, and wiring diagrams for free. 1. Product Overview
To make a portable wireless headphone amplifier, connect a single-cell 3.7V Lithium-ion (18650 or Li-Po) battery directly to the solder pads.
The module is powered on and actively searching for a Bluetooth master device (pairing mode). vhm 314 datasheet free
Positive terminal for 3.7V Lithium battery supply (3.7V - 4.2V). GND Pad: Ground terminal for the power supply. Audio Outputs
| Category | Specification | Typical Value / Details | | :--- | :--- | :--- | | | Model | VHM-314 | | | Main Chipset | JL AC6925A or AC1847AP1P803 | | | Board Dimensions | 30mm x 30mm square, ~5 grams weight | | Connectivity | Bluetooth Version | 5.0 (Most common) / 4.1 / 4.0 variants exist | | | Supported Profiles | A2DP, AVCTP, AVDTP, AVRCP, HFP | | | Range (LOS*) | Typically 10–15 meters (some claim up to 30m) | | Power Supply | Operating Voltage | 3.7V to 5V DC (via Micro USB or Vbat pads) | | | Power Interface | Micro USB or Type-C (on newer versions) | | | Battery Support | Direct connection for 3.7V Lithium battery (Li-Ion/Li-Po) | | Audio | Audio Outputs | 3.5mm Stereo Jack & 3-pin solder pad (L, R, GND) | | | Speaker Output | 2 x 3W (into 4Ω load at 5V) | | | Signal/Noise Ratio (SNR) | ≥90dB (some sources state ≥80dB) | | | THD + N | -70dB | | | Crosstalk | -86dB | | | Supported Formats | MP3, WAV, APE, FLAC | | Environment | Operating Temp. | -10°C to +85°C |
The module's compact size and capabilities make it a popular choice for a wide range of projects: No domain name
MY MEMORY OF THE ERROR. she typed. THE ONE THAT BROKE THE MACHINE IN THE FIRST PLACE.
While an official, unified datasheet is hard to find, you can assemble all the necessary information from several reliable sources. Here’s the most effective approach:
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. Positive terminal for 3
is a compact, high-performance solution for wireless audio streaming in DIY projects, car audio modifications, and home stereo upgrades. This versatile board typically utilizes Bluetooth 5.0 technology to deliver stable, high-fidelity stereo output with a transmission range of up to 15 meters in open spaces. Technical Specifications
The VHM 314 boasts an impressive set of features that make it an ideal choice for various applications. Some of its key features include:
) and high-quality audio capabilities, the VHM-314 is highly popular for: Upgrading old wired speakers to Bluetooth 5.0. DIY portable Bluetooth speakers. Car audio auxiliary input modifications. Bluetooth audio receiver DIY projects. Conclusion