tag:blogger.com,1999:blog-2322291048042453151.post7107749102499074743..comments2022-03-30T19:26:28.939-07:00Comments on Hands On - Arduino: Project 16 - Using an L293D Motor Driver ICJames Floyd Kelly (Jim)http://www.blogger.com/profile/13876934942928389738noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2322291048042453151.post-37121376327958255882011-09-17T15:16:12.746-07:002011-09-17T15:16:12.746-07:00The 10k resistor is so the pin is not left floatin...The 10k resistor is so the pin is not left floating when the switch is off. I had the same question and found a book that gave it at least that much explanation.Charleshttp://www.revantine.netnoreply@blogger.com