Manual

Active buzzer module
Working voltage: 3.3V~5V
Output type: Digital output
Interface mode: pH2.0~3P
Module size: 35*26.3mm
Module weight: 47g
Pin denifition:
IN Digital input
+ GND
- VCC
11
Module description: Buzzer is a kind of audio signal device. As an integrated electronic buzzer,
it is powered by DC voltage and widely used in computers, printers, copiers, alarms,electronic
toys, automotive electronic equipment, telephones, timers and other electronic product voice
equipment. According to its driving mode, buzzer can be divided into activebuzzer and passive
The difference between the active buzzer and the passive buzzer: the source here does not
refer to the power supply, but refers to the vibration source. That is to say, there is a vibration
source inside the active buzzer, so as long as the power is on, it will ring, and there is no vibration
source inside the passive buzzer, so it is impossible to make it ring with DC signal.
The buzzer described here is an active buzzer. As long as there is power. We output alternating
high and low levels to make the buzzer sound.
buzzer.
Micro:bit
Example 1
code