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Unread 16-01-2016, 21:19
Breadbocks Breadbocks is offline
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Re: How to put two motors on one spike

The Spike can be used to control certain motors if you don't need throttle, just on/off, although per table 4-4 in the rules, you can only legally control 1 motor with 1 spike, in which case you wire M+ to the motor's positive and M- to the motor's negative.

WITH THAT SAID
Outside of the competition, you can in fact control two motors separately with a Spike. Wire one to the M+ and another ground somewhere, and the other to M- and some other ground.

SEE: http://content.vexrobotics.com/docs/...uide-sep05.pdf

EDIT: @cpapplefamily: A regular motor controller can support 2x of the motors that a Spike can support 1x of. You can never have 2x motors on a Spike. Additionally, a CIM is not one of the motors listed as being able to run 2x of on a proper motor controller. Furthermore, you would never want to, because that one motor controller is still limited to the same 40A breaker, which 2 CIMs could pop in a heartbeat.

What CAN be done, which I believe your mentor may have confused with what you wrote, is that you can have 2 motor controllers on one PWM signal, using a Y cable and 1 PWM port on the RoboRIO.

Last edited by Breadbocks : 16-01-2016 at 21:22.
 


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