Is there a Lightning splitter to allow for multiple accessories?

Recently, Logitech came out with a wired keyboard for iPad - http://www.logitech.com/en-us/product/wired-keyboard-ipad?crid=1240

We have various Windows-based kiosk machines, and we'd like to replace them with iPads. A Bluetooth keyboard would have been more difficult to set up and keep charged, so we were very excited that there is now a keyboard you can just plug in.

However... once you plug in the keyboard, you can no longer keep the iPad charged. Does anyone know if it's possible to have both a charging cable and an accessory plugged into one device? You'd think there would exist a splitter, but of course I can't find one.

Has anyone else run into this dilemma?

-Jonathan

iPad

Posted on Oct 3, 2013 4:03 PM

Reply
35 replies

Apr 2, 2016 10:11 AM in response to jawsnap

Apple just relesed a new USB camera adapter. It is called the Apple lightning to USB 3 camera adapter which lets you connect a USB device and charge your iPad. It also provides power to that USB device so if that device requires to much power you don't need a powered USB hub like the old USB camera adapter.

http://www.apple.com/ca/shop/product/MK0W2AM/A/lightning-to-usb-3-camera-adapter ?fnode=59a311678d4c1feec158d8191d07144cd…

Jul 23, 2014 7:10 AM in response to Simon Slavin

What I'm trying to accomplish is meant to be a permanent location. I'd rather not have to think about batteries in the future at all if I can help it. I would most likely forget about it. If I can find a bluetooth keyboard that allows it to be plugged into a power source, I would be happy. I don't mind using bluetooth over a wired connection. However, I'm a little concerned an iPad might not be able to handle 3 simultaneous connections. Keyboard, external GPS, bluetooth data network. I understand the iPad can do a keyboard and a JawBone speaker, but I haven't been able to test one out with the other devices I wish to use.

Jul 23, 2014 7:51 AM in response to Marker227

Okay, I understand your setup now. None of those things would use Lightning. You would want them all to use Bluetooth. Bluetooth is a very low-power system. It's designed on purpose for small devices with batteries in and a lot of its cleverness is its ability to listen for and broadcast using a tiny little chipset and very little battery power. So it's very good at transmitting a lot of very short messages like "they pressed the 't' key" or "your current GPS position is 1234,5678".


Lightning/Thunderbolt is a very high-power system. It's designed for transmitting huge amounts of data very fast. So it can do things like "Here is a frame for a 2048 x 768 display at 768 bits of colour per pixel" or "Here is the next 4 megabytes of your file". But to do this it uses some big chips on the circuit board, requires some very expensive cables, and uses power like you wouldn't believe, even for one tiny message. It would be a complete waste to have a Lightning keyboard, for example.


So don't worry about using Lightning for small devices which don't transmit much data, or that need to be light enough to clip to your ear.

Jul 23, 2014 8:26 AM in response to Marker227

Look at Logitech Ultra thin keyboard cover (not folio), you can pair it to the ipad, still use bluettooth for the music as well and you can connect its micro usb power connection to a car power adapter usb. I have a double usb adapter in my car and can charge two USB items such as the ipad and iphone oer keyboard simultaneously.

This keyboard works very well, I leave mine plugged in while at my desk but can take it with me to meetings, travel etc.

Jul 23, 2014 9:30 AM in response to Marker227

A bluetooth device can have up to 8 other devices paired with it. So you could have a computer paired with lots of earpieces speakers cars GPS sensors, etc. Bluetooth devices which is meant to be peripherals (e.g. earpiece, GPS sensor) are usually programmed to accept only one pairing at a time, and when paired with something new forget previous pairings. This isn't a hardware limitation, it's done to simplify usage and decrease security problems.


In terms of things like keyboards, I recommend that instead of looking for one with a built-in charger (they're heavy and expensive because the charger components are heavy and expensive) you look for one which accepts standard batteries and use it with rechargable batteries. That way you can use the same batteries in lots of devices and just replace with a new set when the old ones wear out or before long trips.

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Is there a Lightning splitter to allow for multiple accessories?

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