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Step 6: Monitor

I used the Vuzix Wrap 920 video glasses as a monitor.  They have a 640x480 resolution on each screen, which is pretty good considering the price.  It's a big price to pay if it were a full size monitor, but for video glasses, this is the best resolution I could find for the price.  Vuzix makes a better pair, the Wrap 1200, which sports twin 852x480px displays, but they cost a lot more ($500 on Amazon, more from Vuzix). 

As far as setup goes, connect the glasses to the control box they come with, and plug the RCA adapter the glasses come with into the control box as well.  Then connect the "Video" plug on the RCA adapter to the RCA coupler, and plug the other end of the RCA coupler into the Pi.  Don't use an RCA cable for this connection.  It works, but the coupler is much, much shorter.  I also found that this coupler is extremely snug-fitting.  I did loosen it up a little bit, but it is still a tight fit, unlikely to come loose while carrying the computer around. 

Some people have been asking about what the display actually looks like.  I was actually curious myself before buying these glasses.  When I tried to photograph them,  I realized quickly just how difficult it is to take a picture of such a tiny screen, behind a lens.  I posted the best picture I could get.  Viewed on my computer screen I could make out words in the image.  I don't think it's as easy when viewing the picture from Instructables.  You could try downloading it if it's difficult.  I assure you it's easier to read when wearing the glasses. 
<p>if you add a camera to the front and program it right when they aren't using the computer you can get live feed of what's in front of you so you don't have to take the glasses off. (Pi cam?)</p>
Are there anything else that could be used as a monitor, instead of video glasses? I ask only because they are a little expensive.
try taking a small lcd screen (2 inches or so) which can be bought for under $30 on amazon, and attach it under the lip of a baseball cap, covering one eye. you can then either cover the other eye with an eyepatch, or if you are good at focusing one eye at a time, you can just focus on the screen when you want to use the computer, and focus on other stuff when you are just walking around. however, the screen uses rca connectors, so you will need a converter of some sort to connect to the rasberrypi
<p>Can i please have a link, I cant find any.</p>
<p>Amazing tutorial, very well done. I am currently making one of my own, albeit with only one display. My question is this; what kind of draw is there in amps by the setup? I am having a problem with the power pack I am using curently.</p>
<p>I would say &quot;amazing&quot;, but i can't because my jaw broke when it hit the floor. This is one of the coolest things i've ever seen.</p>
<p>Note to those who have asked me a question to which I have not replied: Work gets the best of me sometimes. While I try to stick around to answer questions I do not always get the chance. </p>
<p>Hi,</p><p>I was wondering if instead of the listed Raspberry Pi Model B I could use the Model A+?</p>
<p>Sure, that's probably an even better choice now that it is available since it uses less power. Your only challenge will be using one USB port. USB can only output so much power so if you want a keyboard and network connection it might be a challenge. </p>
<p>What all can you use for a screen? Can I use something other than the specified video glasses?</p>
<p>You can use anything that outputs composite or HDMI video. That is the beauty of the RaspberryPi. I chose to use video glasses for the purpose of making the entire setup wearable. </p>
<p>Excellent...!!</p>
<p>Appreciate the links that you gave and the pricing, thanks for that!</p>
<p>Outstanding...!!</p>
<p>Thats astonishing...</p>
<p><br><br>Very good...!!</p>
What kind of image quality do you get from this? Can you read this comment on it?
<p>he said his glasses are 852x480px each</p>
<p>could you provide amazon or ebay links for these?<br>I live in Israel, and it's pretty hard for me to find electrical supplies where I live that arent grossly overpriced</p><p>Thanks!</p>
<p>Thats astonishing...<br></p>
<p>Thats marvelous</p>
<p>Thats remarkable...<br></p>
<p>Pretty cool. I think the word you're looking for is &quot;portability&quot;.</p><p>I'm not really sure how your glasses work, but, depending on the tech, the LCDs may have semi-reflective back panels (to even out the back light distribution?) or just a sheet of something opaque. If you can get that off, you should be able to see through the lcds (they should be mostly transparent). If you can turn the backlight off and have software that sets the pixels for white (presumably the max transparency of the lcd) you might be able to have better visibility through them.</p><p>It would probably be good to have UV protection on the outside edge in such a design, as the amount of light that travels through the lcd might be small enough to cause your eyes to dilate (to let in more light) and thus expose you to more UV than usual (if the glasses don't block UV).</p>
<p>You might instead add the raspberry pi camera to the outside so you can walk around and take pictures of the way you are facing...</p>
<p>Translucent might be more truthful, but it would probably be better than not being able to see through the.</p>
<p>I am thinking about doing this for about a hundred bucks because I already have everything for the Pi I just need a keyboard/mouse combo that is bluetooth...</p>
<p>great</p>
<p>NICE</p>
<p>awesome</p>
<p>good</p>
<p>amizing</p>
<p>good</p>
<p>good</p>
<p>wonderful</p>
<p>Thats brilliant</p>
I think going li-poly here would be a reasonable option. Lighter, smaller, and quite a bit more power. The tricky part is dealing with charging and such but even then, there are several pre-made packs that would fit the bill if you don't want to get into rolling your own.
Yeah, that's a really, really good idea. I've recently improved the battery pack a little bit, but I do think you're right on going to li-poly batteries. The biggest interest I would have is not only more power and a smaller pack like you mentioned, but also cost. The battery pack I used in the project cost a total of $70. When you think about that being for only four AA batteries with a charge controller.... that's a decent 15-20% of the project cost. Any ideas where I could find a pre-made compact pack? <br> <br>How about li-ion batteries? I should think they would be easier to charge. And since they're used in cellular phones, slim li-ion batteries in the size of a Raspberrypi might be easy to come by.
<p>I recreated your instructable except for the power pack. I bought a dual output rechargable 5v 2.1 mAh and 5v 1.5 mAh but its not enough to power the edimax wifi, candybar keyboard or even a wireless mouse. I even tried hooking it up with a battery powered hub without success. How many amps. is your power pack putting out? What operating system are you using? Wheezy has worked the best for me so far, as far as loading the bluetooth drivers for the candyboard and edimax; I couldn't get those same drivers loaded for XBMC. Advice will be appreciated!</p>
<p><br>Superb</p>
<p>Nice project! Those mini wireless keyboards, you can buy them here: <a href="http://voltatek.com/en/home/20-mini-wireless-keyboard-touchpad-with-laser-pointer.html" rel="nofollow">http://voltatek.com/en/home/20-mini-wireless-keybo...</a></p><p>They sell them cheap and ships from Canada!</p><p>They also have mini wireless adapters for Raspberry Pi:</p><p><a href="http://voltatek.com/en/communication/25-mini-wifi-usb-adapter-dongle-internet-ethernet.html" rel="nofollow">http://voltatek.com/en/communication/25-mini-wifi-...</a></p>
<p>wnderful</p>
<p>good</p>
<p>mate I would love to buy the complete setup from you, can I do this Ill pay nicely</p>
What kind of keyboard is that?
mate I would love to buy the complete setup from you, can I do this Ill pay nicely
For video, use omxplayer, as it can decode h264 via the RPi video chip, that has no issues with full hd. The CPU can't really handle sd video, but the gpu is all another thing. :D
Oh wow, super awesome!!
Awesome.
Super amazing, and way way cool!!
Appreciate the links that you gave and the pricing, thanks for that!

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