Turta Buzzer Button Module carries a large button and a piezo sounder. It's ideal for Internet button applications.
Button Input: INT, Active Low.
Piezo Input: PWM.
POWER: +3.3V and GND.
Module's technical specifications are as follows:
Button operating force: 4N.
Button travel: 0.9mm.
Button diameter: 4.3mm.
Piezo sounder recommended frequency range: 2 to 10kHz.
Piezo sounder sound pressure range: 65 to 85dB.
Piezo sounder peak dB frequency: 7.5kHz.
Buzzer Button Module is an add-in board for Turta Modular System. You'll need a compatible host device for your module. The following devices support Buzzer Button Module:
Turta IoT Node - ESP32
Turta Modular HAT for Raspberry Pi