When you connect the - pins to GND, digitla I/O output to S pin. When output is in the high level the buzzer is on and when output is in the low level,the buzzer is off.

Electronic Brick - Buzzer

Model: IM120710008

Regular Price: $1.50

Special Price $0.90

Availability: In stock

Quick Overview

Electronic brick of buzzer can be connected to the digital I / O port, when the output is low, buzzer will give a long sound. If it is connected to an analog pulse width modulation (PWM) output , the buzzer can produce a variety of tones, which can be made into the speaker of electronic organ.