Perl controls the turnouts OK
Start with Turnout2 as copy of Turnout1
Testing edge detect.  Works in python but not perl
test file to check push
Second level push test
Try a different GPIO library
Created Timer.pl to calculate 74121 circuit values
Minor word change
Initial round of changes
use active_low
add mode_name decoder
change die to croak
add button pull_up
Testing GPIO modules using Blink1.pl
Small debug changes
Working with HiPi 0.30, needs termination fixes
sigs.pl to test signal handling
Successful test with 74121 and real switch OK.  But responds to long button push incorrectly, it toggles endlessly.
Restore active_low, use 40ms pulse