Quote Originally Posted by Techbuilder View Post
Here's the final bread board

Maybe I am missing something I don't know
maybe you can point it out.

I used a 16F627A
Looks good.
I didn’t check the PIC pin-out, expect you did that.
Looks like a 4.7k (4k7) resistor to +, on a pin probability MCLR = good.
Should work.
But:
You should have a ceramic or low inductance capacitor, right close to the PIC, between power pins. About ~ 0.1 microfarads.

I always put an electrolytic capacitor on the +/- “rail” (power) where it comes onto the solder-less bread board. About ~ 100 microfarads.
It would not hurt to put another electrolytic capacitor on the same power pins as the previous ceramic. About ~ 10 to 100 microfarads. Yes all the capacitors are in parallel which seems strange to beginners. You will get the idea as you start to learn about faster circuit dynamics…

Also, I like to hang an LED with a current limit resistor on the power rail. This helps us avoid “dumb time”, when the power is off and the green trigger LED will not come on no matter how many things we try.
Disclaimer: This is something I have heard about. I have NEVER had this happen to me.
-Adam-