I recently built a frequency counter kit from a company, that I won't name, and it didn't work. Tried to get help from the supplier, poor customer service. So I figured I tried to build my own from scratch. I came across the Weeder counter I found here
I have the circuit working up to pin 1 of U2. I get a siganl at pin 1 but nothing on pin 3 because pin 2 is being held low. I assumed it was low because the PIC was holding it low. First off, I know nothing about PIC programming. Actually I picked up a programmer from a friend and have just begin learning. But in the meantime I started looking for help to fix the problem. I came across this post from this forum but it is aged.