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Panel mounted USB power ports for Apple devices?

 
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ralphmariafinch(at)gmail.
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PostPosted: Fri Aug 01, 2014 7:23 am    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote

Can anybody recommend panel-mounted USB ports to supply power for Apple devices (iPhone/iPad)? I'm not sure if the Apple devices require some special signaling circuitry of the USB port to accept power.

I could use a cigarette lighter receptacle and then a plug-in adapter, but I prefer to plug directly into a USB port to charge.
Thanks,

Ralph Finch

Davis, CA USA
RV-9A

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ceengland7(at)gmail.com
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PostPosted: Fri Aug 01, 2014 10:14 am    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote

On 8/1/2014 10:17 AM, Ralph Finch wrote:

Quote:
Can anybody recommend panel-mounted USB ports to supply power for Apple devices (iPhone/iPad)? I'm not sure if the Apple devices require some special signaling circuitry of the USB port to accept power.

I could use a cigarette lighter receptacle and then a plug-in adapter, but I prefer to plug directly into a USB port to charge.


Thanks,

Ralph Finch

Davis, CA USA


RV-9A


iphone 4 & under seem to work ok with any usb supply. The ipads won't charge unless the usb port signals that it's capable of 2.1 amps. It's done with a specific value resistor between two of the pins. There are some inexpensive units on ebay & amazon, but most don't tell you whether they will work with ipads.

I've been considering the same issue. Dedicated ports would look nicer, but there is something to be said for the cig lighter socket with plugin adapter. That way, the port on the panel could be temporarily re-purposed for generic automotive devices, if needed.

Charlie
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edpav8r(at)yahoo.com
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PostPosted: Fri Aug 01, 2014 12:42 pm    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote

On Aug 1, 2014, at 8:17 AM, Ralph Finch <ralphmariafinch(at)gmail.com> wrote:
Quote:
Can anybody recommend panel-mounted USB ports to supply power for Apple devices (iPhone/iPad)?

As I've mentioned a couple of times in the past, I'm working on just such a product. I admit that with the passage more than a year it probably looks like vapor-ware, but I'm getting close. As of about a month ago, I have a fully functional final prototype on my bench:


It has input over-voltage and reverse-voltage protection, output short circuit protection, USB device sensing so that it automatically configures itself to charge whatever you plug into it, noise filtering so that it plays well with other avionics, and it automatically shuts itself off when the aircraft's alternator is offline. It will rapid-charge two devices simultaneously (in this photo, the board was charging both my iPad 4 and iPhone 3GS). The board measures 3" x 2" (~76 x 51mm) and uses a rugged panel-mount dual USB receptacle.

Now I need to get production worked out. I'm a commuting airline guy, and I'm on reserve with minimum days off, so my time at home has been very limited. I have the second half of Aug off, so I'm hoping to make some real progress then. I can't promise a delivery date, but stay tuned...

Eric
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Mauledriver(at)nc.rr.com
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PostPosted: Fri Aug 01, 2014 8:52 pm    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote

Stein has a panel mount USB port product that works for me.  The amps are the issue as others have pointed out.  The Stein unit charges up an iPhone fast but also gains ground on an iPad even if it's on and flying... but it does it slowly.   That's all I need.

I also have a cig lighter with 2 ports that works.  One port has the amps required for the iPad, the other doesn't.  Why?  Don't know.  Don't know the brand offhand.

On 8/1/2014 11:17 AM, Ralph Finch wrote:

[quote] Can anybody recommend panel-mounted USB ports to supply power for Apple devices (iPhone/iPad)? I'm not sure if the Apple devices require some special signaling circuitry of the USB port to accept power.

I could use a cigarette lighter receptacle and then a plug-in adapter, but I prefer to plug directly into a USB port to charge.


Thanks,

Ralph Finch

Davis, CA USA


RV-9A

Quote:


No virus found in this message.
Checked by AVG - www.avg.com
08/01/14 [b]


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harley(at)AgelessWings.co
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PostPosted: Sat Aug 02, 2014 4:04 am    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote

I have both a phone (an LG) and a tablet (a Nexus 7) that I use in my plane.  They both came with the cig lighter adapters for the power supply...and both had USB ports in the adapters instead of a cable connection for the device. The tablet's unit had the higher available output current, so I dismantled the case and removed the circuit board. I mounted the circuit board on the forward side of the instrument panel with a hole through the IP big enough to accept the USB plug from the devices.  I only have the one port, but I never need to use the two devices at the same time...I only need it to charge the devices, so I can use either one without being plugged in.

I can't remember how I mounted the circuit board to the IP, but I'll take some pictures the next time I'm at the hangar if anyone is interested.

Harley

On 8/2/2014 12:50 AM, Bill Watson wrote:

[quote] Stein has a panel mount USB port product that works for me.  The amps are the issue as others have pointed out.  The Stein unit charges up an iPhone fast but also gains ground on an iPad even if it's on and flying... but it does it slowly.   That's all I need.

I also have a cig lighter with 2 ports that works.  One port has the amps required for the iPad, the other doesn't.  Why?  Don't know.  Don't know the brand offhand.

On 8/1/2014 11:17 AM, Ralph Finch wrote:

Quote:
Can anybody recommend panel-mounted USB ports to supply power for Apple devices (iPhone/iPad)? I'm not sure if the Apple devices require some special signaling circuitry of the USB port to accept power.

I could use a cigarette lighter receptacle and then a plug-in adapter, but I prefer to plug directly into a USB port to charge.


Thanks,

Ralph Finch

Davis, CA USA


RV-9A

Quote:


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Eric M. Jones



Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts

PostPosted: Sat Aug 02, 2014 6:44 am    Post subject: Re: Panel mounted USB power ports for Apple devices? Reply with quote

You cannot ignore DX.Com who sells these for $1.99 with FREE Airfreight Shipping. Search Ipod Adapter. They also have a large number of user-reviewed similar devices.

How anyone can sell and ship these for $1.99 is a mystery, but they do.

While you're at it grab the LED flashlights. Don't cheap-out on these. The cheap ones are good, the more expensive ones are astonishing.


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james(at)etravel.org
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PostPosted: Mon Aug 04, 2014 3:09 am    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote

Ralph,

Could you find a suitable automotive version, and simply take it out of the cigar lighter package and hard wire into the plane?  I think that's what I would do.  It gives you a chance to try all sorts of low-cost items and then pick a couple of the right ones.  


For the presentation at the instrument panel, I would go for a USB extension cable for ease of mounting.  This can then plug into your power supply.  
FWIW. 
James


On 1 August 2014 16:17, Ralph Finch <ralphmariafinch(at)gmail.com (ralphmariafinch(at)gmail.com)> wrote:
[quote]Can anybody recommend panel-mounted USB ports to supply power for Apple devices (iPhone/iPad)? I'm not sure if the Apple devices require some special signaling circuitry of the USB port to accept power.

I could use a cigarette lighter receptacle and then a plug-in adapter, but I prefer to plug directly into a USB port to charge.
Thanks,

Ralph Finch

Davis, CA USA
RV-9A

Quote:


ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution

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harley(at)AgelessWings.co
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PostPosted: Mon Aug 04, 2014 4:35 am    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote



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rlyon2(at)gmail.com
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PostPosted: Mon Aug 04, 2014 1:04 pm    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote

These are worth a look:
http://commitlift.com/

The supplier is an excellent source of information.


Richard Lyon

On 4 August 2014 16:49, Dj Merrill <deej(at)deej.net (deej(at)deej.net)> wrote:
[quote]--> AeroElectric-List message posted by: Dj Merrill <deej(at)deej.net (deej(at)deej.net)>

On 8/4/2014 10:32 AM, Robert L. Nuckolls, III wrote:
Quote:

  The technology is mature . . . 2 and 3 are relatively
  low value risks. But one can spend a lot of hammer-n-tongs
  effort making a 'clean' and robust installation. Condider
  products tailored to the task like these

http://tinyurl.com/m8kfz6h



FYI, I installed this very unit in my aircraft, only to find out that it does not have the proper resistors installed for the iPad to charge (I note now that the listing has a reference "can't be used for iphone" which was not there when I bought mine).

I ended up hacking the end of the iPad's USB cable to add the resistors (actually I added a micro-sized potentiometer adjusted to the proper resistance), which is now dedicated to the airplane, and it charges the ipad just fine.

Not difficult, but not as "clean" an installation as I had originally envisioned.

-Dj

--
Dj Merrill - N1JOV - VP EAA Chapter 87
Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/
Glastar Flyer N866RH - http://deej.net/glastar/

====================================
-
ric-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
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MS -
k">http://forums.matronics.com
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t="_blank">http://www.matronics.com/contribution
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handainc(at)madisoncounty
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PostPosted: Mon Aug 04, 2014 1:57 pm    Post subject: Panel mounted USB power ports for Apple devices? Reply with quote

Just what I was looking for....Thanks for the reference.

M. Haught
On Aug 4, 2014, at 4:01 PM, Richard Lyon wrote:
[quote]These are worth a look:
http://commitlift.com/

The supplier is an excellent source of information.


Richard Lyon

On 4 August 2014 16:49, Dj Merrill <deej(at)deej.net (deej(at)deej.net)> wrote:
Quote:
--> AeroElectric-List message posted by: Dj Merrill <deej(at)deej.net (deej(at)deej.net)>

On 8/4/2014 10:32 AM, Robert L. Nuckolls, III wrote:
Quote:

The technology is mature . . . 2 and 3 are relatively
low value risks. But one can spend a lot of hammer-n-tongs
effort making a 'clean' and robust installation. Condider
products tailored to the task like these

http://tinyurl.com/m8kfz6h



FYI, I installed this very unit in my aircraft, only to find out that it does not have the proper resistors installed for the iPad to charge (I note now that the listing has a reference "can't be used for iphone" which was not there when I bought mine).

I ended up hacking the end of the iPad's USB cable to add the resistors (actually I added a micro-sized potentiometer adjusted to the proper resistance), which is now dedicated to the airplane, and it charges the ipad just fine.

Not difficult, but not as "clean" an installation as I had originally envisioned.

-Dj

--
Dj Merrill - N1JOV - VP EAA Chapter 87
Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/
Glastar Flyer N866RH - http://deej.net/glastar/

====================================
-
ric-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
====================================
MS -
k">http://forums.matronics.com
====================================
e -
-Matt Dralle, List Admin.
t="_blank">http://www.matronics.com/contribution
====================================






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