On Mon, Mar 9, 2015 at 1:24 PM, Jim Larson <[email protected]> wrote: > Following is a description of a problem I'm having in a motor control system > I'm working on down here in Sunny San Diego. Any thoughts or insights would > be most appreciated. > > I have 8, 10K linear pots. The wiper of each pot is tied to an analog input > of an Arduino Mega (Analog pins 0 to 7).
Hmm, I think I'm looking at the correct motor shield schematic here: https://learn.adafruit.com/assets/9536 If so, it seems that has 5 of the analog pins tied up... even if they aren't being used on the motor shield in your setup (I can't tell on cursory glance) maybe they aren't turned off (if they can even be disabled). If I'm right and that is the correct schematic... you could either destructively cut the traces coming from the analog pins, or get some headers between the Mega and the motor shield stack, and for the analog pins instead of upright headers, use 90-degree angle headers so the analog are completely diverted from the motor shields. _______________________________________________ dorkbotpdx-blabber mailing list [email protected] http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
