There are two modules, but the working voltage of two modules, a 3.3 V, a 5 V, how the two meet in the same microcontroller work together?

CodePudding user response:

On STC microcontroller in the manual about mixing voltage, entitled "mix voltage 3 v/5 v power supply system device I/O ports connected; In the stc15 series of manual page 420, reference,

CodePudding user response:

With triode conversion, online have figure, or with specialized level conversion module

CodePudding user response:

Should be no problem,,