I teach 4 math classes of struggling students that like to goof around alot. The new fun thing to do instead of paying attention is messing with the projector during class using apps like WatchOn and Peel. Are there any ways to prevent these apps from syncing with my Epson projector?
Hi,
I understand your predicament. The infra-red is not encrypted and is works on easily available open-source codes. Programmable remote controllers (Combination TV, DVD, hi-fi, etc) are also very cheap and easily available these days.
I think the only way to resolve is to use hardwired remote controller, ie, using a USB cable. There are different approaches for short-distance (up to 5 meters) and long-distance.
Typically, a USB mouse is limited to a 5 meter cable maximum. There are readily-available USB extensions cable to control the projector or PC. When you use this, you can prevent remote-control pranks by physically blank off the projector's infra-red sensor by covering it with a piece of cardboard (the user manual will show you where it is). If you are using the older projector with the wireless mouse adapter at the computer, then you can unplug the adapter.
http://www.usbcable.com/usbbasics.htm
For longer distances, there are other hardware-related solutions to extend the USB range, such solutions usually incorporate ethernet (LAN) technologies so that the USB signal (short distance) is converted to ethernet (long range) and then back to USB.
An example is:
http://www.networktechinc.com/usbkvm.html
More examples are shown here:
https://www.google.com.sg/search?q=...uFsG_rgf24YDwDg&ved=0CFIQsAQ&biw=1407&bih=710
A hardwire solution will eliminate pranksters from using wireless remotes to upset your lessons, but it will somehow limit the presenter's movements..
Hope this helps.
Or you could do what I do and just put a post - it note over the infrared receiver on the projector. This blocks the IR signals from your students phones. I've had the same issue.
Sent from my SM-N900V using XDA Premium 4 mobile app
Related
Hello everyone - my first post here.
It occured to me that if we could make the XDA2 talk to a hard disk we could fit a big drive in the car and then use the power connector to create communication between the pda and the drive.
Is this possible?
We'd need a new skin for the windows media player with huge simple, finger sized buttons to press to access the different folders and tracks. We would also need a pair of phono outs to go into the car hifi audio input.
Also it would be nice to have a hardware button which would fire everything up so the sequence would be : get in car, clip xda into holder and hit a button. Then you've got 120gb worth of music at your fingertips and if you've got wifi card in there you can take data from your house pc wirelessly and store it on the car's hdd!!! Just awesome.
Any ideas how hard this would be. I would be prepared to pay for development because as a car audio shop owner (www.audiolectrics.co.uk if you are interested!) I reckon we could sell these systems as PDA's like XDA are just phenomenal units - I have had mine now for a week or so and am just bowled over by it!!
the skins in the windows media website are huge enough to use it with your fingers.
or you can try the latest PocketMusic which rocks
Good stuff but how could I add a hard disc drive to it using only the pin outs for usb in the lower charging connector?
Actually I have a sneaky suspicion that the XDA2 won't function as a usb host which is a big problem.
Any ideas? Its' odd because obviously it works 2 way comms when active sync-ing.
HD in the XDA II
The festesting way to adding a HD in the XDA II.
http://www.pocketpcthoughts.com/index.php?action=expand,27981
Yes but this is not convenient since you've got to keep taking the xda out of its case.
No, what I need is a wireless hard drive the xda can talk to or a way of making the xda a usb2 host.
Nobody got any ideas?
AHA!!!!
Had a sneaky idea.
What if I buy a backpack and insert a RATOC Compact flash USB host adaptor and plug this into a huuuuuuge USB drive.
Then, make up a cable that connects the xda2 to the BACKPACK which will be hidden out of sight in the car - I presume the XDA talks to the backpack via only the ordinary connectors.
I presume it isn't possible to make a lead up that would connect to a compact flash usb host WITHOUT the backpack - ie that the backpack contains some circuitry?
OK This will work for sure.
I just need someone to photograph the backpack connector where it joins the unit so I can get an idea of the engineering needed.
And one more thing - can I get proper sound output from the main connector of the unit rather than the headphone jack?
it would work if the drivers work ok i suppose
about the audio then all you should need is the connector pin out of xda2 somebody gave them once try search
Seems like there are few individuals actively pursuing this idea. See thread below :
http://softwareforums.intel.com/ids/board/message?board.id=43&message.id=84
There is also at least one Bluetooth harddisk solution
http://www.expansys.com/product.asp?code=HOPBIT
I recently saw an announcement for a similar product using Wifi instead of Bluetooth. This could be an easier option. Simpply bring the XDAII to your car with the SDIO WiFi card in it and pull the files via WiFi from the Storage Server (err... harddisk)...
OK!
Asus are just about to release their wireless Hard Disk drive! This will have an ftp style interface that will allow password encryption etc so this job looks simple with one of these!
Can anyone help with getting the windows media player sound out on the main connector?
hd
i recently baught a usb 2.0 laptop hard drive case its 2.5 inches small enough to try and convert it to use on the xda2 see link
http://shop.store.yahoo.com/cablesonline/usb2025inlah.html
Yup. Managed to find a reference to this WiFi disc enclosure. Sounds like this will do the job nicely!!!
http://www.asus.com/news/2004/20040311.htm
So Mr Hobbit - we've still got to get XDA2 to talk to the USB though without the backpack for car useage.
This is where the WIFI disk comes in. Chuck it under a seat and feed it juice and hay preso 10000 songs accessible from your XDA control panel.
I love it.
Still need the audio pin outs on the main connector though?
Anyone?
after a quick search in the forum
http://forum.xda-developers.com/viewtopic.php?t=3929&highlight=bluetooth+mp3
thanks for that - must admit i don't fully understand what the definitive pin outs are! Could you translate into english for me!! Much appreciated in advance......(!)
I have another Suggestion for the Connection of a Hard Drive to your XDA.
How about connecting up an Ethernet Harddisk such as the one below to a WIFI Access unit or router ( these usually have a 4 port Ethernet Hub built in ) which will be installed permanently in the car ( wired through 12v/240inverter )
http://www.softjam.co.uk/products/index.php?prodref=CU-XIMMNE1040×tmp=1085611877282
This should enable you to access this harddisk over WIFI with the XDA+SD Wifi card?
You`ll then also be able to upload music to your cars Hardisk jukebox whilst its parked on your driveway.
This is what I plan to try anyway ( except I`ll probably add the Backpack so that I can Stream Divx movies from the HardDisk over the Wifi through the XDA2 through the backpage out the VGA Out into my Alpine 7" motorised display ) Fingers Crossed Tomtom will display on the screen also??? we shall see.
I still have to come up with a solution for the sound though as the mini jack is just too arkward.
personal wifi ap
Hi Guys
The network hard drive looks like a great idea..... combined with one of these http://www.expansys.com/product.asp?code=112376 youve got as much portable storage as you could want.
Hi,
I am using an application on my HTC Prophet, to connect via IRDA to a bike computer, to download information on rides, routes etc.
Now, I'm looking to update my phone to a Touch Pro or SE X1, but it seems that modern phones no longer have an IRDA port...
Do you know of a way to create an IR connection from the phone, say using the mini-USB port??
For example, for modern laptops that no longer have an IR port, you can buy a USB IR.
Thanks
Paul
Nope. No native IrDA and no USB host functionality, so you can't use the external adapter. With X1 microSD SDIO IrDA adapter can be an option, but I've neer seen one available for sale.
See
http://forum.xda-developers.com/showthread.php?t=337641
for a similar discussion.
Thanks Stepw for your comments. It seems a complex topic (some phones - like the X1 don't even have a USB host connection via the mini-usb port). I was in contact with VidaOne to see if they had any ideas (they have a WM software that connects to Polar exercise devices via IR).
Since "nothing" can be done via adding hardware - given the variety of terminals -, they are looking at syncing the exercise files that are downloaded onto the PC from teh exercise device . Not quite as immediate as device -> phone, but a good second best.
Hi there
I'm embarking on an ambitious project and i was wondering if anyone could help me by giving suggestions.
I am making my own home automation system, and I already have the necessary hardware to get it up and running, but I want to take it a step farther.
I have this (Use google translate lol) http://cba.sakura.ne.jp/kit01/kit_399.htm kit, which is basically a set of 8 relay switches that can be used to turn on and off mains devices (such as lights, powerpoints, ect) that are controlled by a computer through a DB25 printer port. I also have an old Dell D600 laptop that has said printer port, and the software needed to drive the circuit board. This is all well and good, as everything is working so far, but before I bother to install this thing in my roof and hook it up to control my lights, power points, ect, I was wondering if there is a way to use my android phone (HTC Legend, unrooted ) or tablet (Motorola xoom wifi rooted with Tiamat, o/c to 1.7ghz) to control this board through a computer.
I already have a client that remote controls the computer (splashtop remote), and I can achieve this with some difficulty by remote controlling the computer and using the PC software through my phone/tablet, but I was wondering if there is an android home automation program and its PC client service that supports DB25 printer port pinout settings, so I could directly control the circuit board through the app, like the leading home automation apps already available (minus the extremely expensive proprietary hardware that you need with them). If not, has anyone else considered developing one? If anyone could give me any help on this it would be greatly appreciated.
What's up all.
So here's my thought... Is there a device out there to plug into a TV's HDMI port that will let me send video files wirelessly to it from my phone/computer so that I can watch the videos on the big screen instead of my phone/computer screen?
A few ideas:
- Is there a HDMI-to-bluetooth adapter/dongle that I could plug into the TV and send the videos bluetooth-ly to?
- Is there a HDMI-"SmartTV-creating" adapter (I've seen things like "Android mini pc"s on the 'net) that I could use to transform my TV into a SmartTV or an android "tablet/computer-like-device" and then send the video files from one device to the other? i.e. - devices like this one... http://www.amazon.com/UG007B-Quad-C...d=1389321213&sr=8-13&keywords=android+mini+pc with a wireless keyboard as well of course, and using either bluetooth or a wifi signal to send from my phone/computer to either stream, or transfer the file then watch.
- From what I know the Chromecast device at this time cannot do this, and only works for specific apps like HBO GO, Netflix, Hulu, etc., not for sending straight video files stored on a phone/tablet, but are there other such devices out there that do what I am looking to do?
Thanks all in advance for the help!
Apart from all the other proprietary sets on the market, the wi-fi (802.11/...) USB dongle appear to be an easy way to connect your mobile/laptop/TV to the TV set. The disadvantage is the short range of about 10 feet, unless you use a wi-fi access point to extend the distance range.
On the TV side, attach a HDMI dongle
On a PC, attach wi-fi USB dongle. I think you will need a streaming software.
On a tablet, attach a OTG (On-The-Go) mini-USB-to-USB adapter and then the wi-fi USB dongle. Again, I would think you need a streaming software.
On a mobile phone, it will be more of a challenge. You could do wired-wireless combo:
Phone-to-computer using screen capture application (wi-fi, USB or Bluetooth), then Computer-to-TV via the wi-fi USB option above.
Interesting read:
http://techchannel.radioshack.com/wirelessly-connect-pc-tv-2561.html
Thanks for the ideas, and I agree that link was an interesting read.
After thinking, I think the way I'll go about this is using Google Drive and an Android mini pc TV adapter. I can drop the video files (or whatever) into the drive on my computer or phone, then sync my TV Android to get the files to play.
So in the year of Christ 2022, is there still any sort of way to output video on a Pixel 2?
Story goes so that I have one with a completely busted screen, that does not register anything at all, let alone show anything. Glass broken, touch screen broked. I read there's some sort of a solution, but it requires an app to be downloaded which obviously is impossible in this case.
Is there any solution besides getting this piece of junk fixed?
I was able to use USB adapter to HDMI (not DisplayPort over USB-C alt mode, but older DisplayLink technology over USB 2, plus adapter to USB-C, normally used for adding extra monitors to laptops etc), but it required a DisplayLink app, not sure if it downloaded it automatically or not but I typically install apps from Google App Store remotely, on a PC browser (and select my phone as the target). A mouse should also work with Android but you'll need USB hub, or a bluetooth mouse, so yes in theory it will work but not for DRM content like Netflix, and not sure about booting up, perhaps you can blidnly use external keyboard for PIN or password.
Edit: USB docks for laptops, with HDMI and more USB ports, also use the DisplayLink technology and may be worth a shot