Enhance your electronic projects with this high-performance Active Buzzer Module, designed with an internal oscillation source to provide immediate sound output once energized. Unlike passive buzzers, this active buzzer offers convenient program control, allowing a single-chip microcontroller to activate the sound through high or low-level signals, delivering more precise and reliable audio alerts. Key Features: · Built-in Oscillation Source: Ensures the buzzer sounds automatically when powered, eliminating the need for an external driving circuit. · Easy Program Control: Compatible with microcontrollers operating at 3.3V to 5V, enabling flexible sound activation via simple high or low-level signals. · Efficient 9012 Transistor Driver: Provides stable and efficient driving performance for consistent sound output. · User-Friendly Installation: Equipped with mounting holes for secure fixing with bolts, making installation quick and convenient. · Wide Compatibility: Supports direct connection to 3.3V and 5V microcontroller IO ports, suitable for various DIY electronics and embedded systems. · Compact and Lightweight: Measuring 3.8 x 1.3 cm and weighing approximately 4g, this buzzer module is ideal for space-saving applications. Specifications: · Module Interface: 3-wire system · Size: 3.8 x 1.3 cm (1.5 x 0.5 in) · Quantity: 5 pieces per package · Weight: Approx. 4g each Package Includes: · 5 x Active Buzzer Modules This Active Buzzer Module is a reliable and versatile audio alert solution for your microcontroller projects, offering easy integration, stable performance, and compact design to meet the needs of hobbyists and professionals alike.