RE: [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V

2019-02-13 Thread Graham Stott 
The battery at the link you provided has a TX60 connector for the power leads.  
I do not know where you are located but you could order the following from 
Pololu and make a cable that splits the power with a pair (red and black) going 
to a new TX60 connector which mates with your drone motors and the other pair 
(Red and black) going to the DC barrel Plug. The center pin is the positive 
(Red).

 

DC Barrel Plug – part 2448 - https://www.pololu.com/product/2448

XT60 Connector – part 2158 or 2175 - https://www.pololu.com/product/2175

 

Graham

 

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of Adrian Godwin
Sent: Wednesday, February 13, 2019 12:34 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V

 

The charge balance connectors are typically JST PH connectors on a 0.1" pitch 
(though might be 2mm  - it think that's JST XH). They bring out the two ends of 
the battery pack (the same as the high current connector) and every junction 
between cells. So the 2s charger on the BBBlue has 2+1 pins and the 4s 
connector on your battery has  2+3 pins. 

The outer pins, if connected to the BBBlue, will provide 14.8 - 16.8V and this 
might be OK to power the BB although it will not be able to charge it correctly 
using the charge balance wiring. I'm not entirely certain that it will be OK - 
the DC jack is rated to 18V but the charge connector is only expected to supply 
8.4V to the pack and may not tolerate the 4s pack. 

Since you aren't able to charge it that I would think it would be safer to use 
the DC jack as Graham says, though you will need to fix the connector in as 
they won't stand much vibration and it's likely to fall out during flight.

You will need a wiring harness to connect the heavy current output from the 
lipo pack to the motor controllers. You may be able to buy this ready made and 
add a wire to supply power to the BBBlue (it might already have a controller 
power connection, or the speed controllers might have a 5V output for it). If 
you make it up from individual connectors, the part for the battery pack is 
called a TX60 (or the larger TX80)  and is easily available from ebay or 
quadcopter supply sources. The same connector is probably used on the motor 
controllers, or they might be fitted with one of the other standards. Quite 
often they have no connectors fitted as there are a number of different options 
alongside TX60.



 

On Wed, Feb 13, 2019 at 8:09 PM mailto:timmcgi...@gmail.com> > wrote:

I am a bit unsure on how to connect the 4s battery to the dc jack. It is using 
the battery connector found on this jack 
https://www.unmannedtechshop.co.uk/product/tattu-1800mah-14-8v-45c-4s1p-lipo-battery-pack/.
 Is there some component I can by which I can solder on the end of the battery 
leads to go to a dc jack I can connect to the beaglebone blue?

On Wednesday, 13 February 2019 02:05:29 UTC, Graham Stott wrote:

Are you expecting to also charge the battery using the Beaglebone Blue?  If 
not, why not connect the battery to the DC jack input?

 

Graham

 

From: beagl...@googlegroups.com <mailto:beagl...@googlegroups.com>  
[mailto:beagl...@googlegroups.com] On Behalf Of timmc...@gmail.com 
<mailto:timmc...@gmail.com> 
Sent: Tuesday, February 12, 2019 12:48 PM
To: BeagleBoard mailto:beagl...@googlegroups.com> >
Subject: [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V

 

I am planning to use a Beaglebone Blue in a drone that I am building. The drone 
motors need a 4s battery which runs at 14.8V however the connector for a 
battery on the Beaglebone Blue seems to only support a 2s battery which 
operates at 7.4V. How would you recommend running the Beaglebone Blue off a 4s 
battery? If needed we are able to solder components together.

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Re: [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V

2019-02-13 Thread Adrian Godwin 
The charge balance connectors are typically JST PH connectors on a 0.1"
pitch (though might be 2mm  - it think that's JST XH). They bring out the
two ends of the battery pack (the same as the high current connector) and
every junction between cells. So the 2s charger on the BBBlue has 2+1 pins
and the 4s connector on your battery has  2+3 pins.

The outer pins, if connected to the BBBlue, will provide 14.8 - 16.8V and
this might be OK to power the BB although it will not be able to charge it
correctly using the charge balance wiring. I'm not entirely certain that it
will be OK - the DC jack is rated to 18V but the charge connector is only
expected to supply 8.4V to the pack and may not tolerate the 4s pack.

Since you aren't able to charge it that I would think it would be safer to
use the DC jack as Graham says, though you will need to fix the connector
in as they won't stand much vibration and it's likely to fall out during
flight.

You will need a wiring harness to connect the heavy current output from the
lipo pack to the motor controllers. You may be able to buy this ready made
and add a wire to supply power to the BBBlue (it might already have a
controller power connection, or the speed controllers might have a 5V
output for it). If you make it up from individual connectors, the part for
the battery pack is called a TX60 (or the larger TX80)  and is easily
available from ebay or quadcopter supply sources. The same connector is
probably used on the motor controllers, or they might be fitted with one of
the other standards. Quite often they have no connectors fitted as there
are a number of different options alongside TX60.



On Wed, Feb 13, 2019 at 8:09 PM  wrote:

> I am a bit unsure on how to connect the 4s battery to the dc jack. It is
> using the battery connector found on this jack
> https://www.unmannedtechshop.co.uk/product/tattu-1800mah-14-8v-45c-4s1p-lipo-battery-pack/.
> Is there some component I can by which I can solder on the end of the
> battery leads to go to a dc jack I can connect to the beaglebone blue?
>
> On Wednesday, 13 February 2019 02:05:29 UTC, Graham Stott wrote:
>>
>> Are you expecting to also charge the battery using the Beaglebone Blue?
>> If not, why not connect the battery to the DC jack input?
>>
>>
>>
>> Graham
>>
>>
>>
>> *From:* beagl...@googlegroups.com [mailto:beagl...@googlegroups.com] *On
>> Behalf Of *timmc...@gmail.com
>> *Sent:* Tuesday, February 12, 2019 12:48 PM
>> *To:* BeagleBoard 
>> *Subject:* [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V
>>
>>
>>
>> I am planning to use a Beaglebone Blue in a drone that I am building. The
>> drone motors need a 4s battery which runs at 14.8V however the connector
>> for a battery on the Beaglebone Blue seems to only support a 2s battery
>> which operates at 7.4V. How would you recommend running the Beaglebone Blue
>> off a 4s battery? If needed we are able to solder components together.
>>
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "BeagleBoard" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to beagleboard...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/beagleboard/b06db982-88de-4218-bd5a-3450bab249ca%40googlegroups.com
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
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Re: [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V

2019-02-13 Thread timmcgilly 
I am a bit unsure on how to connect the 4s battery to the dc jack. It is 
using the battery connector found on this 
jack 
https://www.unmannedtechshop.co.uk/product/tattu-1800mah-14-8v-45c-4s1p-lipo-battery-pack/.
 
Is there some component I can by which I can solder on the end of the 
battery leads to go to a dc jack I can connect to the beaglebone blue?

On Wednesday, 13 February 2019 02:05:29 UTC, Graham Stott wrote:
>
> Are you expecting to also charge the battery using the Beaglebone Blue?  
> If not, why not connect the battery to the DC jack input?
>
>  
>
> Graham
>
>  
>
> *From:* beagl...@googlegroups.com  [mailto:
> beagl...@googlegroups.com ] *On Behalf Of *timmc...@gmail.com 
> 
> *Sent:* Tuesday, February 12, 2019 12:48 PM
> *To:* BeagleBoard >
> *Subject:* [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V
>
>  
>
> I am planning to use a Beaglebone Blue in a drone that I am building. The 
> drone motors need a 4s battery which runs at 14.8V however the connector 
> for a battery on the Beaglebone Blue seems to only support a 2s battery 
> which operates at 7.4V. How would you recommend running the Beaglebone Blue 
> off a 4s battery? If needed we are able to solder components together.
>
> -- 
> For more options, visit http://beagleboard.org/discuss
> --- 
> You received this message because you are subscribed to the Google Groups 
> "BeagleBoard" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to beagleboard...@googlegroups.com .
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/beagleboard/b06db982-88de-4218-bd5a-3450bab249ca%40googlegroups.com
>  
> 
> .
> For more options, visit https://groups.google.com/d/optout.
>

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RE: [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V

2019-02-12 Thread Graham Stott 
Are you expecting to also charge the battery using the Beaglebone Blue?  If 
not, why not connect the battery to the DC jack input?

 

Graham

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of timmcgi...@gmail.com
Sent: Tuesday, February 12, 2019 12:48 PM
To: BeagleBoard 
Subject: [beagleboard] Powering Beaglebone Blue off a 4s battery 14.8V

 

I am planning to use a Beaglebone Blue in a drone that I am building. The drone 
motors need a 4s battery which runs at 14.8V however the connector for a 
battery on the Beaglebone Blue seems to only support a 2s battery which 
operates at 7.4V. How would you recommend running the Beaglebone Blue off a 4s 
battery? If needed we are able to solder components together.

-- 
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 .
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