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Controlling an ESC — Parallax Forums

Controlling an ESC

kkaustin812kkaustin812 Posts: 3
edited 2011-01-18 13:46 in Robotics
Hi Guys,

So Im working on building a UAV using the Basic Stamp px2 and Propellor. I am having a problem that is so simple yet it's driving me nuts. I cant seem to control the ESC of my airplane with my microcontroller. I have an actual RC airplane transmitter and reciever which I looked at the throttle output with an oscilliscope and it is indeed PWM just like servos, 45-50hz of 1-2ms non-inverted pulses. I emulated said signal with my microcontrollers (it looks almost identical on a scope to the RC reciever) but nothing happens. Anyone have any ideas?

Thanks,
-Austin

Comments

  • RonPRonP Posts: 384
    edited 2011-01-18 11:15
    Austin

    I think but I am not sure that when the ESC is powered up and it doesn't receive a signal within a given time It will not arm. Try if you haven't already sending the signal to the ESC before powering it up.

    Edit: Make sure your prop is off.

    Ron
  • FranklinFranklin Posts: 4,747
    edited 2011-01-18 13:46
    Stamp turned on first, grounds tied together. Could be many other things but from your description I can't tell.
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