Help a Novice with an LED design or system PLEASE

Welcome.
Although we won’t design your system we will help you when you have problems.

Arduino links of interest.

How to use this forum:
https://forum.arduino.cc/index.php?topic=149014.0

Listing of downloadable 'Arduino PDFs' :
Either Google >>>- - - - > arduino filetype: pdf
Or
https://www.google.ca/search?q=arduino+filetype%3A+pdf&rlz=1C9BKJA_enCA739CA739&oq=arduino+filetype%3A+pdf&aqs=chrome..69i57j69i65.1385j0j7&hl=en-US&sourceid=chrome-mobile&ie=UTF-8

Listing of downloadable 'C++ PDFs' :
Either Google >>>- - - - > C++ filetype: pdf
Or
https://www.google.ca/search?q=c%2B%2B+filetype%3A+pdf&rlz=1C9BKJA_enCA739CA739&oq=c%2B%2B+filetype%3A+pdf&aqs=chrome..69i57.22790j0j7&hl=en-US&sourceid=chrome-mobile&ie=UTF-8

Arduino cheat sheet:

Troubleshooting common errors:

Watch these:
Arduino programming syntax:

Arduino arithmetic operators:

Arduino control flow:

Arduino data types:

Some things to read

https://learn.adafruit.com/category/learn-arduino

https://learn.sparkfun.com/tutorials/how-to-read-a-schematic

Language Reference:

Foundations:

How and Why to avoid delay():
http://playground.arduino.cc/Code/AvoidDelay

Demonstration code for several things at the same time.
http://forum.arduino.cc/index.php?topic=223286.0

Useful links:
https://forum.arduino.cc/index.php?topic=384198.0

Arduino programming traps, tips and style guide:

Jeremy Blume:

Arduino products:

Motors/MOSFETs

Switches:

Share tips you have come across, 500+ posts:
https://forum.arduino.cc/index.php?topic=445951.0

Images from above:
https://www.google.com/search?q=“Share+tips+you+have”+larryD+site:https://forum.arduino.cc&prmd=nmvi&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiJw-zu68ncAhXPGTQIHWCDCNwQ_AUIFCgE&biw=1024&bih=653

Debug discussion:
https://forum.arduino.cc/index.php?topic=215334.msg1575801#msg1575801

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