Why do I get an error in the “stop light” program on the Arduino?

Monica October 6, 2014

I am using Arduino for the first time and I followed the directions to make the stop light. When I run the program, I get an error message which says “changeLights’ was not declared in this scope”. Please help.
Thank you.

  1. ha14
    October 7, 2014 at 12:08 pm

    3 way traffic lights, programming trouble