PicoMite: driving a passive buzzer

Author	Message
matherp Guru Joined: 11/12/2012 Location: United Kingdom Posts: 9940	Posted: 02:15pm 28 Nov 2022         Quote   Note that the manual (at least the version I have) says the duty for the PWM command is optional, though not the comma before it ... this does not seem to be true, you get a syntax error if no duty is supplied. The manual is sort-of correct except that we don't have the syntax for the real situation which is that one of dutyA or dutyB is manadatory but it doesn't have to be dutyA like in other MMBasic versions. I think this is explained in the text of the latest version. To drive the buzzer you really want to use an H bridge so that it sees +/- 5V