Layout update 5 4 20

[@MultiMusicianman]

Well done, amid the frustration of it all

[@donh8833]

The sensors use LEDs which are polarity sensitive. You likely wired them backwards.

[@sparky107107]

so your saying I am in for a world of hurt when I go to set up mine? Like you, mine has been sitting on the shelf for about 5 years. with extension

[@conrailSD40guy]

Hopefully not, but now you know what to do.

[@donh8833]

If it's more than 1 pit long, yes you are in for a world of hurt.

[@kensbackshop6399]

All i can say is awesome