Active Passive Speaker Buzzer Sound Module 5v Low Level Trigger
وصف
Warning Buzzer & Chime
VCC: Power supply is positive
I/O: level trigger
GND: ground
Instructions for use:
After the active buzzer module is powered normally, the low-level buzzer sounds on the I/O pin, and the high level does not ring.
After the passive buzzer module is powered normally, input a square wave buzzer with a frequency of 2-5k at the I/O pin, otherwise it will not ring.