Active buzzer module Passive acoustic sensors Flat trigger buzzer control panel
Active/passive
Buzzer generation module
3.3-5V voltage high and low level trigger
Passive buzzer features:
1. There is no shock source inside the passive source, so if you use DC signal, you can't make it chirp.
2 The sound frequency is controllable, and the effect of "Dolomifa solasi" can be made. You have to use 2K to 5K square waves to drive it
In some special cases, it is possible to reuse a control port with the LED
Active buzzers are characterized by:
Active buzzer with internal shock source. So as soon as the electricity comes on, it will scream
2 program control is convenient, MCU a high and low level can make it sound, and passive buzzer can not do.
- A GREEN
- SHENZHEN
- IN STOCK
- 100000
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