PCB Dimension:18.5mm x 15mm(L x W)
No oscillation source, need square wave (frequency 2K-5K ) to drive.
Sound frequency control, you can make a inchdo re mi fa sol la siinch effect.
5 x Standard Passive Buzzer Module
reference source programme
int buzzer=8;// Set the control the buzzer digital IO pin
After downloading the program, the buzzer experiments are finish.
5Pcs 3.5-5.5V Standard Passive Buzzer Module
Shipping:Standard Shipping about 10-25 business days