At 2.5A output, the ISENSE pin reads 1.25V. If the solenoid shorts, DIAG goes low within 5µs.
is a high-performance Bluetooth 5.0 audio receiver and MP3 decoder board designed for DIY audio projects, car stereo upgrades, and portable speaker systems. It enables wireless, lossless stereo audio streaming with a compact form factor. Technical Specifications Specification Bluetooth Version 5.0 (supports A2DP, AVCTP, AVDTP, AVRCP, HFP) Operating Voltage 3.7V to 5V DC (Micro USB or 3.7V Lithium Battery) SNR (Signal-to-Noise Ratio) is greater than or equal to is less than or equal to Dynamic Range (DNR) Frequency Response 20 Hz – 20 kHz Transmission Distance Up to 15 meters (open space) Decoding Formats MP3, WAV, FLAC, APE Interface and Connectivity Power Input : Can be powered via a Micro USB port direct solder pads for 3.7V-5V lithium batteries. Audio Output : Features a standard 3.5mm stereo jack for headphones or amplifiers. It also includes L/R/G pads on the PCB for custom hardwired integrations. Visual Feedback Vhm 314 Datasheet
A standard Vhm 314 comes in a or TO-220-7 derivative package. Understanding the pinout is essential for PCB layout: It enables wireless, lossless stereo audio streaming with
The is a popular, low-cost Bluetooth audio receiver module used widely in DIY speaker projects, car audio upgrades, and headphone wireless conversions. It utilizes the AS19AP (specifically AS19AP28150) decoder chip to provide high-fidelity stereo sound. Technical Specifications It also includes L/R/G pads on the PCB
| Pin # | Name | Function | | :--- | :--- | :--- | | 1 | Vcc | Main power supply (8-36V). Bypass with 100µF + 0.1µF ceramic. | | 2 | OUT | Load output (connect to solenoid, LED, or resistive load). | | 3 | GND | Power ground. Must be isolated from signal ground. | | 4 | IN+ (Analog) | Non-inverting analog setpoint (0–5V = 0–3.14A). | | 5 | IN- (PWM) | Digital PWM input (20kHz recommended for silent operation). | | 6 | DIAG | Open-drain fault indicator (active low for overtemp/short circuit). | | 7 | REF | Internal 2.5V reference output (max 1mA). | | 8 | ISENSE | Current monitor output (0.5V per Ampere). | | 9-15 | NC | No connect (used for thermal conduction to PCB). |