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Unread 14-01-2016, 23:54
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FRC #1718 (The Fighting Pi)
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Re: Robot Radio 12V, Increased Brownout Risk?

Quote:
Originally Posted by seg9585 View Post
Not sure if this has been discussed on CD already, if so I apologize.
This year our new compact robot radio has a DC voltage rating of 12-18 V. Also, so far in my experience it takes up to twice as long to initialize as the former routers.

I analyzed the voltage levels from our 2015 matches and did notice several instances where we dropped below 10.5 volts during a match even with good batteries.
Has anyone experimented with the radio yet to see at what voltage the router would shut down/reboot, or if there are any symptoms of a reduced voltage during a match (reduced range, or maybe the router goes into a safe mode that reduces capability temporarily?).

I'm getting increasingly nervous that a powerful drive system we are designing will kill our radio during a match.
Power to the radio should be taken from the Cross the Road Electronics Voltage Regulator 12 V 2 A rail, Per R43, which will maintain voltage below what the RoboRio browns out at.
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