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AABoost

3.3V/5V regulated power supply from a single AA battery.

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A lot of folks here encouraged me with my snapVCC project. A few people suggested doing something similar with an AA battery.

AABoost is an AA battery sized board with a boost converter that supplies 3.3 V or 5V as needed.

Schematic:

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Pontus wrote 06/07/2016 at 21:37 point

whats next after this one? have you considered doing anything for 18650?

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Mahesh Venkitachalam wrote 06/08/2016 at 01:15 point

I sort of lost momentum as there is a very similar project on hackaday that got crowdfunded recently. The chip I've chosen doesn't supply much current, so it requires a redesign, I think...

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CaptMcAllister wrote 10/20/2016 at 18:53 point

Hi Mahesh.  The BooSTick project was inspired by the Hackaday article on SnapVCC - if I had idea you were working on the same thing, we could have worked together!  Anyway, they just started selling it on Adafruit.  https://www.adafruit.com/products/3265

Thanks for the inspiration!

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Mahesh Venkitachalam wrote 10/21/2016 at 01:18 point

Thanks, and congratulations on the Adafruit listing!

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m7med wrote 03/20/2016 at 23:27 point

cool idea 

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Mahesh Venkitachalam wrote 03/21/2016 at 01:04 point

Thanks!

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Roman wrote 03/15/2016 at 11:27 point

Very nice p

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Mahesh Venkitachalam wrote 03/16/2016 at 00:22 point

Thanks Roman!

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Roman wrote 03/16/2016 at 00:59 point

That's funny, I meant to say project. Not p.

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CaptMcAllister wrote 03/14/2016 at 14:46 point

Nice project Mahesh!  Your SnapVCC inspired me to do the same thing.  I'm eager to see how yours turns out!  What does your peak current look like for each of the power rails?  I'm at about 220 mA for 5 V, which is leaving it a bit short for the ESP8266.

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Mahesh Venkitachalam wrote 03/14/2016 at 15:15 point

Thanks! Just assembled the board today. Will test and post results.

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Mike Maluk wrote 03/10/2016 at 00:42 point

Very awesome! 

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Mahesh Venkitachalam wrote 03/10/2016 at 01:08 point

Thanks! Should have the first prototype next week...

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danjovic wrote 12/03/2015 at 15:17 point

Bones!! This is amazing and useful! 

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Mahesh Venkitachalam wrote 12/03/2015 at 15:45 point

Thanks!

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