Quote Originally Posted by gadelhas View Post
Hi,

I only can see one button connected to External Interrupt RB0. PIC16F628, only haves 1 External Interrupt, that is the RB0 Pin. The other butons that you add to the circuit, will not work as interruopt.
Hi, Folks

I think something has to be cleared ...

You also can get " interrupt on change " interrupt with Port B.4 to B.7 ... or ' comparator interrupts" from the Comparator inputs ...

so, the 3 buttons can generate their own interrupt ...

Obviously the scheme has to be modified to place the buttons on the right pins ....

Alain