A cím elején, valamint az első képen szereplő szín/minta/méret/típus kerül kiszállításra!
A passzív/aktív hangjelző modul alacsony szinten aktiválja a hangjelző vezérlőkártyát
The passive/active buzzer module triggers the buzzer control board at a low level
Now there are a lot of people on the concept of active buzzer and passive buzzer is not very clear, here to do a simple introduction, I hope to help you use in the future.
 
 
 
Note that the term "source" does not refer to the power source. It's the source of the oscillation.
 
The characteristics of passive buzzers are:
1 Passive internal without oscillation source, so if the DC signal can not make it sing. It must be driven by a square wave of 2K to 5K
2 sound frequency control, can make the "multi meters of solarxi" effect.
In some special cases, it is possible to reuse a control port with LED
 
The features of active buzzers are:
1 Active buzzer internal shock source, so as long as the electricity will be called
2 program control is convenient, the single chip microcomputer a high and low level can make it sound, and the passive buzzer can not do.
Each set weighs about 6g
 
Module Description
The module is driven by 9012 triode
 
2 Working voltage 3.3V-5V
6 With fixed bolt hole, convenient installation
PCB size: 3.3cm * 1.3cm
 
Module Interface Description (3-wire)
1 VCC external 3.3V-5V voltage (can be directly connected to 5V microcontroller and 3.3V microcontroller)
2 GND External GND
3 I/O External I/O port of the single chip microcomputer
 
Iii. Delivery List
 
1 Passive/active buzzer module (passed the test)
 
2. Provide information download address (schematic diagram instruction test program)
1005003302259090/1 - supersel