Hi I'm new to electronics and this is a very basic question hope you guys can help me with.
In the attached circuit, how do you calculate the current flowing into the micro pin? What value do you generally use for R3?
Thanks!
In the attached circuit, how do you calculate the current flowing into the micro pin? What value do you generally use for R3?
Thanks!
Attachments
-
5.8 KB Views: 22