Quote:
Originally Posted by wireties
To solve the boot time issue - perhaps put a circuit inline with the Pi's power that will use a dedicated battery until the robots mains come online? Two diodes and a capacitor will do or one can get fancy with a circuit based on something like the MAX6236.
HTH
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That addresses the problem but unless said battery was bought enclosed with the Raspberry Pi complete and off the shelf it violates FRC rules. There was a whole topic on ChiefDelphi about it this year (this topic actually so this is a restatement).
If someone wants to make such an item they need to be prepared to supply anyone that wants it to make it legal as COTS.
To get it approved outside of COTS they need to make several and go through FIRST engineering which will eat up this entire season between field testing and internal testing.
Capacitors are a grey area. For a real storage capacitor you should treat it like above. People have managed to slide high value capacitors into competition but run time would be uncertain.