Button control buzzer someone, you could teach me

CodePudding user response:

What type of single chip microcomputer? Or direct hardware connection without the controller?

CodePudding user response:

reference 1st floor qq_39570191 response:

what type microcontroller? Or direct hardware connection without the controller?

Is 51 single chip microcomputer, introduction to ask just how self-study is better

CodePudding user response:

Buzzer points of active and passive, and also to describe clearly, the active power can be frequency is fixed, the passive is cycle power, frequency adjustable,

CodePudding user response:

Buy a development board, then the seller will give you a bunch of data