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At what voltage does the board brown out? Having a 12v input spec is a little scary since most FRC robot routinely run on 10.5v or less. It it designed to run off the 24v output from the PD?
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The Sasquatch operates down to approximately 4.5v.
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Does it have anything similar to the analog accumulator on the cRIO for gyros and the like?
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It does not. Just the standard Arduino style analog input circuits.
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Does it have a diagnostic light output for something similar to the FRC signal light?
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It does not have an output for a signal light. It does have a very bright tri-color LED that is used to send the "enable", "disable" and error signals.
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How do you handle 24v solenoids? Do you have to run the whole board off of 24v for that to work?
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The solenoid circuits run at the input voltage. If you want to use 24v solenoids then you must power the board at 24v.
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Can it be wirelessly programmed?
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It cannot. The Sasquatch uses the standard Arduino development environment. Our included library does include a way to define variables as parameters. You can modify these parameters from the driver station wirelessly.
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My question is would it be possible to do something like 341 did this year where the video was streamed to the driver station, processed there, and then the commands given; or is it not possible?
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This is the intended architecture. The Sasquatch still uses a wireless router to communicate with the driver station app. Video can be sent through this same router and displayed inside the driver station app. You could then use the driver station computer for vision processing. Alternately you could use any other board for processing locally.
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Also, I was thinking about the number of input/output connectors on the controller, is there a way to expand them if you run out of connections?
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There is no way to expand ports. There are however more ports on the Sasquatch than the current cRIO based system and most of the other systems on the market.
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I agree with this but so much of that community is slowly moving to ARM processors.
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We stuck with the Atmega2560 because of the timing for the FRC proposal and our familiarity with these chips. We are aware of the ARM based solutions and plan to expand this product line in the future should they prove to be popular.