Warning Buzzer & Chime
1pcs Passive Buzzer Module liquidificador ultrasonic Analog sensor acs712 load cell cx 31 vw
Passive Buzzer Module for Description: No oscillation ,need square wave(frequency 2K-5K ) to drive Audino 9012 drive; Work Voltage:3.3-5V Set bolt hole, easy to assemble PCB Dimension:3.3cm*1.3cm Pin Definition : Pin definition Vcc : 3.3-5v GND : The Ground I/O : I/O Interface of SCM