HW-508 Passive Buzzer Module

From the shop's description

HW-508 Passive Buzzer Module The Passive Buzzer Module HW-508 is a small PCB-mounted piezoelectric buzzer module used for generating sound in electronic projects. The buzzer produces tones only when driven by an external square-wave signal. By toggling the input on and off at different rates, it can generate audible tones roughly in the 1.5–2.5 kHz range​. Because of its simple interface and compact size, it’s widely used to provide alert beeps or sound feedback in devices and projects such as computers, printers, alarms, toys, timers, and car electronics​. Features: Control buzzer sounds. Compatible and mini design. Made of PCB material. High-quality machine welding process. Specifications: Model: HW-508 Operating Voltage: 1.5 – 15 VDC Current: < 25 mA Interface: 3-pin male header Board Dimensions: 18.5 mm × 15 mm Pin Configuration: Pin 1 (S): Signal input. Connect to a digital output . Driving this pin HIGH/LOW creates the sound. Pin 2: No connection. The board has this hole/pin but it is not used. Pin 3 (–): Ground. Connect to the circuit ground (GND). Applications: Generating sound effects or simple musical notes in Arduino-based projects. Providing audible alerts in electronic devices. Educational projects for learning about sound generation and microcontroller programming. Integration into smart home devices for notification sounds. Package Includes: 1 × HW-508 Passive Buzzer Module.