Hi Jim,
Thank you again for all your help. I’ve received the photo transistors, but I’m waiting on a resistor kit I ordered to arrive. Once I have that I can go about setting up the prototype… and your diagram will be a HUGE help to me.
The project you’re planning for your grandchildren sounds like it will be a lot of fun for them to play with. I hope they appreciate the work you put into it.
Regards,
Matt.
