Jopto 5PCS DC 3.3-5V Active Low Level Trigger Buzzer Alarm Sound Module 3 Pin Control Compatible with Arduino

• The active buzzer has an internal oscillation source, so it will beep as soon as it is powered on.
• The program control is convenient. The single-chip microcomputer can make a sound with a high and low level, but the passive buzzer can't.
• Operating voltage: 3.3V~5V
• The module is driven by a 9012 transistor.
• Fixed bolt holes for easy installation. Uses 3 pin control port.

Features of active buzzer: 1. The active buzzer has an internal oscillation source, so it will beep as soon as it is powered on. 2. The program control is convenient. The single-chip microcomputer can make a sound with a high and low level, but the passive buzzer can't. Specification: Type: Active The module is driven by a 9012 transistor. Working voltage: 3.3V-5V. Equipped with fixing bolt holes for easy installation. 3 Pin control. Module size: 39 × 13 × 12 mm Weight: 3.5 g Module interface description (3-wire): VCC External Connect 3.3V-5V Voltage (can be directly connected with 5v single-chip microcomputer and 3.3v single-chip microcomputer) GND External Connect GND I/O External Connect MCU IO port Package Content: 5 x Active Buzzer Module