PicoMite: driving a passive buzzer

Author	Message
Mixtel90 Guru Joined: 05/10/2019 Location: United Kingdom Posts: 7301	Posted: 05:08pm 28 Nov 2022       If it's an active buzzer it's got a fixed frequency. It's either on or off. Have a close look and see if there's a + mark on it. Stick it on 3V and see if it makes a buzz.