Adjust to fit in Altoid's tin about beaglebone-blue HOT 10 OPEN

Migrated from jadonk#33 (comment)
Originally created by @erikwelsh on Tue, 01 Nov 2016 19:06:23 GMT

Moved power connector in as much as possible. I think it should fit but will not know until we get the A2 boards back.

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Migrated from jadonk#33 (comment)
Originally created by @jadonk on Wed, 02 Nov 2016 02:38:53 GMT

Still would like to find a shorter power connector.

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Migrated from jadonk#33 (comment)
Originally created by @jadonk on Thu, 09 Feb 2017 22:27:55 GMT

@StrawsonDesign For rev B, can we switch the power input to a JST connector?

https://www.sparkfun.com/products/8734

I wonder how much it would cost to include that in the kit. :-/

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Migrated from jadonk#33 (comment)
Originally created by @jadonk on Fri, 10 Feb 2017 13:27:12 GMT

Even if we included the cable?

On Feb 9, 2017, at 7:31 PM, StrawsonDesign [email protected] wrote:

Hmmmm, sorry but I really really like the universal barrel jack. We would
get so much pushback from people complaining about needing dedicated
adapters just to charge the thing just like Apple gets with their headphone
jack adapters. I do adore the Altoids tin concept, don't get me wrong! But
in practice I don't think anyone is running their board in a conductive
tin, whereas everyone will need to charge it and everyone with a wifi
router has one of these 12v dc wallwarts in their home already.

Charging via a 9v or 12v capable USB-C connector may get initial pushback
too but at least that's looking a bit more towards a future universal
standard.

Respectfully,
James

On 9 Feb 2017 2:27 pm, "Jason Kridner" [email protected] wrote:

@StrawsonDesign https://github.com/StrawsonDesign For rev B, can we
switch the power input to a JST connector?

https://www.sparkfun.com/products/8734

I wonder how much it would cost to include that in the kit. :-/

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Migrated from jadonk#33 (comment)
Originally created by @jadonk on Thu, 08 Dec 2016 18:17:05 GMT

I've not been able to find a shorter jack, which is very surprising to me.

A2 still does NOT fit in an Altoids tin. :-(

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Migrated from jadonk#33 (comment)
Originally created by @jonnycowboy on Wed, 16 Nov 2016 20:00:47 GMT

Would implementing issue 39 (new BMS) allow us to use a different power connector? Is the barrel jack currently used to charge the battery or is it used for directly powering the processor?
jadonk#39

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Migrated from jadonk#33 (comment)
Originally created by @StrawsonDesign on Fri, 10 Feb 2017 00:31:23 GMT

Hmmmm, sorry but I really really like the universal barrel jack. We would
get so much pushback from people complaining about needing dedicated
adapters just to charge the thing just like Apple gets with their headphone
jack adapters. I do adore the Altoids tin concept, don't get me wrong! But
in practice I don't think anyone is running their board in a conductive
tin, whereas everyone will need to charge it and everyone with a wifi
router has one of these 12v dc wallwarts in their home already.

Charging via a 9v or 12v capable USB-C connector may get initial pushback
too but at least that's looking a bit more towards a future universal
standard.

Respectfully,
James

On 9 Feb 2017 2:27 pm, "Jason Kridner" [email protected] wrote:

@StrawsonDesign https://github.com/StrawsonDesign For rev B, can we
switch the power input to a JST connector?

https://www.sparkfun.com/products/8734

I wonder how much it would cost to include that in the kit. :-/

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Migrated from jadonk#33 (comment)
Originally created by @jadonk on Mon, 07 Nov 2016 20:24:26 GMT

I've ordered some PCBs from OSH Park to do a mechanical mock-up to verify the fix. I've not identified a source of a shorter power connector.

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Migrated from jadonk#33 (comment)
Originally created by @StrawsonDesign on Thu, 17 Nov 2016 00:03:50 GMT

The barrel jack is primarily for charging the battery but can provide power to the 5V regulator when no battery is connected. We picked this connector because of how ubiquitous 12v wallwarts are with this 5.5mm barrel jack. I just wish there were half-length jacks available.

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For rev C, let's just use a single type-C connector for power. We'll need to either negotiate 20V or add a boost circuit for charging. I think negotiating 20V should be quite possible.

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