Thread: Producing Qwerty OtherHalf --order counter: 75/75 --ordering closed
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TemeV is offline TemeV
2013-10-08 , 17:15
Posts: 121 | Thanked: 231 times | Joined on Oct 2013
#66
Originally Posted by dirkvl View Post
Okay, that sounds better! However, power-wise it is not very efficient to use voltage-controllers and it is an extra part, which takes in extra space and extra complexity. The best design a the simplest design!!! How about this one?
Power-wise... Small MCUs tend to consume several milliamps. With ADP5588 and a cheap switching regulator, eg. http://fi.farnell.com/texas-instrume...ter/dp/1685654 you get a long with less than a hundred microamps.

Complexity is more than counting components. That regulator requires 3 external components. ADP5588 is way less complex than any MCU.

So I would say going with a regulator and i2c qwerty controller is less complex, cheaper and less power consuming solution.
 

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