1.module driven by S8550 triode
2.working voltage of 3.3 V to 5 V
3.sets of fixed bolt hole, convenient installation
4.small board PCB size: 3.3 cm X 1.3 cm
Module interface specification (3 wire system)
3.I/O external microcontroller IO port
Note that in this case, the "source" is not the power supply.It is the volatile source.
The characteristics of a passive buzzer is:
1 passive internal without shock source, so if use dc signal can't make it.Must use 2 k ~ 5 k square wave to drive it
For more than 2 sound frequency control, can make "m hair sola west" effect.
3. in some particular case, can reuse and LED a control
The characteristics of an active buzzer is:
1 Active buzzer inside with shock source, so as long as the electricity will call
2 Program control convenient, single chip microcomputer a high and low level can make the sound, and the passive buzzer is can't do.
1 X Buzzer Driver Module
Note: all the descriptions and prices are subject to change without prior notice.
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