Squirrels have fuzzy tails.
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First question - any reason I can't just use two 6V battery packs? (rather than the 4.8V and 9V mentioned in the tutorial).
Second question - I thought the big cap was to smooth the low frequency noise on the servo bus. This is also borne out by the "two power source" wiring diagram here: http://www.societyofrobots.com/robotforum/index.php?action=dlattach;topic=3292.0;attach=1304However, on the $50 tutorial itself it states "DO NOT connect the battery + end of the capacitor to the battery + end of 4.8V battery!!!!" Which is exactly the opposite of what is shown on the digram. Which is correct?
Third question - do i need a cap on the microcontroller/sensor bus? other than the ceramic cap that's already between AVCC and Gnd on the microcontroller (and a cap that I've installed on the analogue IR scanner).
Fourth question - I have a switch on the regulated microcontroller/sensor power bus but none on the servo one, will the cap/servos drain any power from my batteries when they're not running?