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Passive Low Level Buzzer Alarm Module for Arduino
Quantity: 1- Color: Blue- Material: PCB- Passive buzzer£¬ need input oscillation frequency in the I / O ports£¬ and the buzzer will sound- Module description:- Module using S8550 transistor drive- Operating voltage: 3.3V~5V- Fixed bolt holes for easy installation- Small PCB size: 3.2cm x 1.3cm- Module interface description (3-wire)- VCC external 3.3V-5V voltage (can be directly connected to the 5V microcontroller and 3.3V microcontroller)- GND external GND- I / O external microcontroller IO port- Packing list:- 1 x Buzzer alarm module