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HB25 on a Prop-1 (BS1) — Parallax Forums

HB25 on a Prop-1 (BS1)

wandererrobwandererrob Posts: 10
edited 2011-09-30 22:19 in BASIC Stamp
OK, next dumb noob question.

I tried running the Parallax motor test to no avail. The code used: HB-25 Motor Test.bs1

I've got the whole rig currently set up a la Scary Terry, using a small DC motor instead of the eventual wiper motor: http://www.scary-terry.com/wipmtr/hb25demo.jpg

When I move up to a wiper motor, I'll be driving the HB25/motor with a separate power supply, but for this little test motor, I'm powering it off the screw terminals of the Prop-1 (12V).

Anyway, I uploaded the code and... no motor movement. Everything powers up, all connections checked. What did I miss?

Thank you for your forthcoming wisdom as I take my first steps with this foolishness :D

Comments

  • wandererrobwandererrob Posts: 10
    edited 2011-09-30 22:19
    Oops, nevermind. Figured it out!

    Turns out I needed to disconnect the ULN pins for Pin0. Motor now ramps up and down as it should.
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