Quote:
Originally Posted by yash101
Yeah. Thee Arduino should draw about .2-.5A. The Gyro and other sensors may use up more, so you may use close to 1A/Hr!
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An Arduino running at full tilt will only consume about 20mA, and only 12mA of that is the Atemga itself. Gyros will pull maybe 4mA (x3 though). Toss on an LCD like the KK2 model uses (which I HIGHLY recommend), and your power budget for the control board is still in the sub 50mA range.
On a quad, or any aircraft, the bulk of the power is consumed in the motors, and the rest is such a small percentage you can basically ignore it. With a 20A ESC, that control system is taking less than one percent of the total power. A small UBEC will work just fine.