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Unread 04-12-2013, 00:13
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Propeller controlling Victors

I was wondering if it were possible to wire up a Victor PWM to a propeller chip. Would the Victor send any 12V feedback that could damage the chips?
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Unread 04-12-2013, 00:29
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Re: Propeller controlling Victors

On the product page here. Under 'Inputs' it talks about the PWM connection.

Edit: The user manual has more detailed information too.
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Unread 04-12-2013, 02:50
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Re: Propeller controlling Victors

The FRC legal speed controllers use an optoisolator on the PWM input. That means the only thing connected to the PWM circuit is an LED so it can't back feed any voltage.
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Unread 04-12-2013, 07:57
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Re: Propeller controlling Victors

Thanks, everyone. That's all I need!
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Unread 04-12-2013, 09:14
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Re: Propeller controlling Victors

Works fine, but when I did it I used a level shifter to get the output of the Propeller board to 5V (I never tried it with the outputs themselves I had no reason to do that but it should work). Talons also work. Jaguars on PWM and with the Microchip CAN transceivers also work. Just get the signal correct or you'll get strange behavior.

I used the level shifters for several reasons not the least of which was to prevent a user wiring error from impacting the Propeller itself. An error like connecting the 6VDC power supply for a hobby servo to the PWM output for example is easy to make with loose wires. The worst case someone fries the level shifter.

If in doubt a simple 2N7000 MOSFET is fine level shifter and quite cheap:
https://www.sparkfun.com/products/8745

How it works:
http://husstechlabs.com/support/tuto...level-shifter/

Last edited by techhelpbb : 04-12-2013 at 09:26.
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Unread 30-12-2013, 22:46
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Re: Propeller controlling Victors

reported
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Unread 01-01-2014, 23:55
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Re: Propeller controlling Victors

??That isn't spam??
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