Piezo Buzzer Module with Transistor

This buzzer is connected to a PWM output of an Arduino, and the signal determines the frequency. On the module the buzzer is switched via a transistor, so the microcontroller output is not loaded with the buzzer current. The module can also be driven by an ESP8266.

Recommended Accessories:

• Dupont Jumper Cable Set 30cm M/F 40 pcs.

Features:

• Driven by a signal, the frequency comes from the microcontroller, on the Arduino for example with tone()
• Marking low level trigger: the I/O input switches at LOW
• 3-pin header, 1 mounting hole

Application Examples:

• Tones and melodies in Arduino projects
• Signal and alarm in microcontroller projects

Documentation:

• Guide: Active and Passive Buzzers on the Arduino (Circuit Basics)

Technical Data:

• Marking: MH-FMD, Buzzer module, Low level trigger
• Connections: GND, I/O, VCC
• Operating voltage: 3.3 to 5 V
• Logic voltage for control: 3.3 to 5 V (PWM signal)
• Dimensions: 32 × 13.5 × 12 mm
• Weight: 4 g

Scope of Delivery:

• 1× Piezo Buzzer Module with Transistor