LM3914 LM3915 10 LED VU Meter Sound Level indicator Board

LM3914 / LM3915 10 LED VU Meter Sound Level Indicator BoardThe LM3914 / LM3915 VU meter board is designed for visual audio level indication using a 10-LED bar display, suitable for amplifier monitoring and DIY audio projects.Configuration: VU meter driver board using LM3914 / LM3915 IC 10 LED bar display indicatorElectrical Characteristics: Supply voltage range: 9 V to 18 V DC Recommended supply voltage: 12 V Compatible with 9 V or 12 V battery operationPackage: PCB size: 38 mm x 72 mm (1.5 inch x 2.8 inch) PCB thickness: 1.6 mmConstruction: Compact PCB design for easy integration Supports 10 LEDs (3 mm or 5 mm) Onboard preset (RV1) for sensitivity adjustmentConfiguration Notes: Signal input from speaker output (connected in parallel to Sig. IN) Bar mode enabled (Pin 9 connected to positive supply) Adjustable sensitivity using onboard variable resistor Low-cost solution for audio level indicationIntended Use: Audio amplifier level monitoring VU meter display for sound systems DIY audio projects Signal level visualization applications