Hi rtr12
Here is a thread where Stan2004 and Gunrunnerjohn help me with IR build.
https://ogrforum.ogaugerr.com/t...76#48171004101674276
This design or if modification will be incorporated into the Super O permanent layout for use in gates and signals. Here is the thread with an mp3 player and similar setup. Page 6 of the thread has the MP3 hook up instructions.
https://ogrforum.ogaugerr.com/t...tical-sensors?page=6