@soundanalogous,

I did several check and there was no FirmataStepper library install. I have check again and again. I will try and use Breakoutjs with the Standard Firmata Library to see if I could just start from that one. I google the error and it seems more people are having same issues.

I will like to use the Advance firmata if possible

Thank you so much for your support

God blesses!!!

Best regards,
Sanyaade