This is 5V passive buzzer module, and it is a piezoelectric speaker. The user can set the PWM output frequency and duration to produce different tones, beats according to the song numbered musical notation. Users can DIY birthday card, etc.
Features:
- Compatibility: Compatible with Arduino UNO R3, Arduino Mega2560, STM32
- Operating voltage: 3.3 - 5.2VDC
- Operating Current: 25mA (max)