mcp145010 piezzo

[bellad]

Hello,
on mcp145010 ( controler fire ) , I'd like to cut the piezzo and manage it with opto
do you think figure A or figure B, or neither?
thank you

 

[FvM]

Connection A or B don't seem to make sense. What do you want to achieve?

To drive external output, you'll use pin 7.

 

[bellad]

i want confirm by temperature before start piezzo , I'm going to use pin 7 for this
if pin 7 and temprature > 50°c then on piezzo