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  • A module using 9012 transistor drive.
  • small plates PCB size: 3.3cm * 1.3cm.
  • 1 VCC external 3.3V-5V voltage (5v microcontroller and can be directly connected to 3.3v MCU) External GND 2 GND.
  • Package Include: 6 x Active Buzzer Alarm Module Sensor Beep For Arduino Smart Car.
  • If You Are Not Satisfied with Your Purchase for Any Reason, Please Feel Free To Contact Us at the Buyer Center or Support Email, 24/7 Quick Reply..
There are many people active and passive buzzer buzzer concept is not very clear, here to do a brief introduction, we want to be helpful for future use. Note that the "source" does not mean power. But rather refers to the shock source. Passive buzzer is characterized by: A passive internal sources without shocks, so if the DC signal can not make it with a tweet. Must 2K ~ 5K square wave to drive it 2 sound frequency controllable, you can make a "more than a meter hair Suola Xi" effect. 3 In some special cases, you can reuse a control and LED mouth Active buzzer is characterized by: An active internal buzzer with shock source, so long as a power will be called 2 program easy to control, SCM can allow a high and low sounds, while passive buzzer can not. One module description A module using 9012 transistor drive 2 Operating voltage 3.3V-5V 6 with fixed bolt hole for easy installation 7 small plates PCB size: 3.3cm * 1.3cm Two module interface specification (3-wire) 1 VCC external 3.3V-5V voltage (5v microcontroller and can be directly connected to 3.3v MCU) External GND 2 GND 3 I / O external microcontroller IO port Package Include: 6 x Active Buzzer Alarm Module Sensor Beep For Arduino Smart Car

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6Pcs Active Buzzer Alarm Module Sensor Beep for arduino Smart car

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