Quote Originally Posted by andybarrett1 View Post
Hi Steve.

Has to see full 10 digits.... the X on the last one is my checksum.... just to see what happens if Number not in eprom

Four doors

Four different keys

one key for each door !!
But this line

IF (char = buf(idx)) THEN loc1

unlocks loc1 when char = buff(idx)

if you scan any card the first character is 1
the first data character is 1 at buff(0)
therefore they match and loc1 opens
which it should not do obviously.