If we want to have two Keyspan PR PR03 presentation remotes controlling two different computers in the same room, is there a way to assign a unique ID or frequency to each so one remote doesn't control both computers?
I got this from their tech support (after the event):
Thank you for your recent inquiry. You will need to change the ID on at least one of your remote controls. To do this, please do the following:
Connect your receiver to your USB port.
Press the CONNECT button the receiver. The receiver's light will turn on.
On the remote control, simultaneously press in on the Composite Switch (black 'wheel' on side of remote) AND hold the laser pointer button until the status red light on the remote control blinks slowly. If your USB receiver blinks at the same time, your remote and receiver are paired. Your remote now has a new ID and the receiver is listening to the new ID. Repeat these steps for every remote you have in the same area. You will now be able to use multiple Presentation Remote Pros in the same area without interference.
ADDITIONAL INFO - - - - - - - - - - - Please note that the Remote's ID is lost if your remote's batteries die or if you change a battery.
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TechSupport#TrippLite.com
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1111 W 35th Street
Chicago, IL 60609
www.TrippLite.com
Phone: 773-869-1233
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I encounter a problem when I'm trying to use a Ubuntu laptop computer to connect to two Sony A6000 through WiFi in the same time.
On that laptop there are two WiFi adapters, one is embedded (say, Wifi-A) and the other is an Asus USB-N13 ProN USB
dongle (say, Wifi-B).
Using Sony Camera Remote API I can successfully control these two A6000 (say, A6000-A & A6000-B)
through these two Wifi adapters, provided only one camera is connected a time. For example, either using Wifi-A to control to
A6000-A or A6000-B, or using Wifi-B to control A6000-A or A6000-B, will work.
I think this proves both the cameras and Wifi adapters hardware function correctly, and any combination of Wifi adapter and
camera works fine, too.
However, it will be different if I try to connect and control both cameras in the same time. The connection to both cameras
is OK (though sometimes not very smooth), but controlling them is not.
Here is a list of the experiment steps:
Wifi-B connects to A6000-B. Then Wifi-B gets IP address 192.168.122.166
Wifi-A connects to A6000-A. Then Wifi-A gets IP address 192.168.122.165
Send M-SEARCH request to Wifi-A and get response from A6000-A. Then get
Device Description XML file from A6000-A successfully.
Send M-SEARCH request to Wifi-B and never get response
I'm wondering if such configuration (One laptop + two Wifi adapter + two A6000) violates any design consideration
of A6000? For example, because both cameras use the same IP address 192.168.122.1 for themselves?
I'll appreciate if any one could comment on this issue.
Thanks in advance!
Xavier
After doing experiments for many days, I'm sure this symptom is caused by the IP address conflict (both of them are 192.168.122.1) of these two A6000.
As I can't find a way to change them, my optimal solution under such configuration (one laptop + two Wifi adapter + two A6000) is to make use of Linux Network Namespaces. Moving Wifi-B to a new Network Namespace does solve this issue, because every Network Namespace has its own network stack. Now I can freely access both of these A6000 from my laptop.
I hope this answer is helpful to anyone who encounters a similar problem.
There isn't any design consideration that would block this from working. Unfortunately we cannot offer any other troubleshooting suggestions.
As you know we can use our ADSL modems to send/receive data with high bandwidth through our phone line to/from ISP servers. I'm interested to write a program to use this capability of ADSL modem to send/receive files directly between computers (like Hyper Terminal application which was used for 56k serial modems). Is it possible? Also I want to know does it need governmental support or not? :)
Best Regards
While this is definitly possible (at least with the Alcatel ADSL modems), it is not worth the hassle. Some random points - please mind that this is written from a european POV, things might be a little different in the USA.
Carriers are not amused, if you change the configuration of your modem. Some will call it "hacking" and disconnect you.
It is not possible, to use the modem for both (Internet access and file transfer) at the same time.
It won't work between modems on different carrier networks or even in different LM segments of the same carrier - the ADSL signal is terminated at the multiplexer in your carrier's LM switch. It does however work between modems attached to the same multiplexer.
For your problem, the solution ist to use a TCP connection instead of a fake serial - even HyperTerminal can do that AFAIR
We have developed an application on Windows.net mobile framework and it is used on a Windows 6.5 Smartphone. for our location based application. Our application is real time and tracks our employees. We are finding that the device loses its GPS signal.
Has anyone managed to restart the GPS receiver so that it starts giving the GPS signal again. I would be ever so gratefull if someone can help. We are using GeoFramework2.0 to deliver the geographic information that you need.
Regards
Sandy
The GPS is "shut down" when no application is using it. Just close your handles and re-open them.
If the GPS on your device is part of the WWAN radio (i.e. cellular phone) it may get put in to a low power state rather than being actually shut off. In that case, you can try restarting the radio.
If that doesn't work, some GPS's will allow you to send proprietary commands to them to force a reset or clear the memory. These commands are not standard and will differ significantly by manufacturer. If you have a SiRF GPS, take a look at the SiRF Binary Protocol Reference.
I always thought that once I choose to receive a phone call my aplication is shut down.
Now I hear of some SDK 3 based application that keeps sending location data while a phone call is being answered?
Is it possible? (Not a jail broken iPhone)
How?
When a call is in progress and one or the two calling parties are being carried in moving transport the system has to inform the network through the mast or antenna that the person or device is moving from one cell to another and then the system can switch the call in progress to the next cell being approached in the direction of travel. When a more direct or non-cell network is in use then the antenna has to send or receive the signal sometimes at different horizontal angles to a series of geographical positions and if necessary pass the call to a later antenna. Fast moving transport sometimes beats the system. In the situation you describe the location could be sent because the phone user has selected a 'send my position' or 'position locator' facility on their phone or it is a phone for officials, officers or children who may be at risk.
A Sprint cellular modem plugs into a laptop - often the PCMCIA slot. To connect, the user opens a program called the Connection Manager. This program has a menu option to display the serial number and phone number of the modem that's currently inserted.
Does that imply that the serial/phone number of the modem could be available to other programs running on the system? (Note: let's assume this is Windows XP.)
Specifically, could a company's VPN software be configured to pass along information about which modem is being used to connect?
Finally, is there existing VPN software that already does this, or would it have to be custom-programmed?
Sometimes you can get the modem's serial number using the AT command set. To see this in action, go to your control panel and open up Phone and Modem Options. Select the Modems tab, select the modem you're interested in, and choose Properties.
In the modem window, select the Diagnostics tab, and press the Query Modem button.
This opens the serial port and sends a series of AT commands to gather various settings and information. You can open the serial port in your program (or a terminal program), send the AT command, and get the same information back.
You may need to check your specific modem's AT command set to find where the serial number is stored, or use a serial port spy program to see how Sprint's program does it.
I'm not aware of any VPNs that use this information, and I can think of several ways to spoof it, since communications between the modem and the computer are not cryptographically secure.
-Adam
Open hyperterminal or make a serial port connection programatically and use Hayes AT language to talk to it. Most software also has it listed in the device properties and/or diagnostics.
AT+GSN
press enter