Vender [lucai] 5pcs/Set Passive Buzzer Module For Arduino Passive Buzzer Low Level Modules . al mejor precio

Passive Buzzer Module car liquidificador ultrasonic Analog sensor acs712 load cell cx 31 vw Hc-sr501 Now there are a lot of people to the concept of passive and active buzzer buzzer is not very clear, do a simple introduction here, hope to help everyone to use in the future. Note that in this case, the "source" is not the power supply. It is the volatile source. The characteristics of the 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 the 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. Description: 1 module uses 9012 triode drive 2 working voltage 3.3V-5V 3 Fixed bolt holes for easy installation 4 small board PCB size: 3.3cm * 1.3cm 5 VCC external 3.3V-5V voltage (can be directly connected to 5v microcontroller and 3.3v microcontroller) 6 GND external GND 7 I/O external MCU IO port Package includes: 1 Set = 5pcs Note: 1.Under the influence of light and the display, the color difference may decrease slightly. 2.Due to manual measurement, please allow size differences about 1-3cm. Thank you for your understanding.