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wiki:v2:pantilt_demo_pane [2018/04/09 21:52] (current)
jfrench - Imported by DokuWiki Advanced Plugin
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 +====== Pan/tilt Demo Tab ======
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 +This tab contains parameters to adjust parameters associated with the pan/tilt demo, such as the PID gains for each axis. To bring up the Pan/tilt Demo Tab, first bring up the Configure Dialog (click on the gear icon or select **File➜Configure**). Now select the **Pan/Tilt Demo** tab under **Pixy Parameters**.
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 +{{wiki:​img:​1f89d18619eede16216cbcd4c81400649ecc2ed7.jpg}}
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 +  * **Pan P gain:** This parameter adjusts the proportional gain for the pan axis (servo 0).
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 +  * **Pan D gain:** This parameter adjusts the derivative gain for the pan axis (servo 0).
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 +  * **Tilt P gain:** This parameter adjusts the proportional gain for the pan axis (servo 1).
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 +  * **Tilt D gain:** This parameter adjusts the derivative gain for the pan axis (servo 1).
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 +Some useful notes:
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 +  * The default values work well with the Pixy pan/tilt mechanism, but you are welcome to tweak to get more performance or use a homemade pan/tilt mechanism, which will surely mean you'll need to play around and find good gain values.
 +  * The **proportional gain** will control the speed of the servos. If your servos aren't moving fast enough, try increasing the proportional gain.
 +  * The **derivative gain** will help ensure that you don't overshoot or oscillate. If your servos are oscillating,​ try increasing the derivative gain. If increasing the derivative gain doesn'​t reduce oscillations,​ try reducing the proportional gain and reset the derivative gain to 0, then try increasing the derivative gain again.
 +  * The gain parameters can be set to negative values, which may be necessary if your servos need to move in the opposite direction (assuming you're using your own pan/tilt mechanism).
 +  * The RC-servo port pinouts, as well as which port is which can be found [[wiki:​v2:​Port_Pinouts|here]].
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wiki/v2/pantilt_demo_pane.txt · Last modified: 2018/04/09 21:52 by jfrench