The DCC++ and DCC++ EX command station both send multiple (3 I think) identical packets for accessory commands, and loops continuously sending...
Glad it was of help to you. I only have Arduino based controllers so can't comment on the output circuits of others, but I suspect you're right...
UPDATE: BAT41 was a bad choice as it contains silicon diodes to give it higher reverse voltage breakdown. Improvements to the 6N137 Optocoupler...
There is a problem with the Optocoupler circuits caused by the 1N4148 diode. Replace it with a schottky diode Bat41. See https://wp.me/pcDzMI-B...
I know that this is an old thread, but I also had problems with the Arduino DCC optocoupler interface from Dave Falkenburg, using RudyB's...
I've seen Dave Falkenburg's circuit suffer from a phenomenon called Diode Reverse Recovery, where the 1N4148 D1, when reverse biased, conducts for...