For full circuit diagrams (if available) and the most precise technical details, you can look up specific vendors, but the information provided in the search results covers all necessary operating parameters for most projects. Sharvi Electronics VHM-314 Product Page
In firmware, configure the GPIO as input and trigger on rising/falling edge depending on magnet polarity and wiring. vhm 314 datasheet free
The VHM-314 is a highly popular, compact, and versatile Bluetooth 5.0 MP3 audio receiver decoder board. It is widely used in DIY audio projects, modifying old speakers, and building custom Bluetooth sound systems. This article provides a comprehensive overview, including the technical specs, pinout, and a "free datasheet" summary for the VHM-314 module. What is the VHM-314 Module? For full circuit diagrams (if available) and the
Standard 5V DC input. Ideal for quick testing using a standard phone charger or power bank. It is widely used in DIY audio projects,
Look at the physical component.
: A built-in LED (typically blue) indicates pairing status and active connection. Pinout and Interface Details