I have a door telephone on our office building. When somebody presses the button it calls a telephone number for which we have a simcard. Right now that simcard is in a cellphone. Everytime we have a meeting at our office, we have to pick up the phone and press 3 to open the door. I'm looking for a solution to be able to programatically pick up the phone and press the 3. Does any such software exist? I have googled but found nothing.
TLDR; I need some software (and a sim card reader) that can programmatically pick up the phone when it rings and respond with a 3 on the numpad.
The OS doesn't matter.
Not sure if Stackoverflow is the right place to ask. Let me know if you have suggestions for other better places to ask.
You could try using the SIM Card in a normal 3G USB Dongle and an application called "Gammu" which can answer a call and sendDTMF codes i.e. number presses. I have only used Gammu on linux systems but I believe it works on Windows as well.
Another possible solution:
Setup voicemail for that SIM card, and when you are asked to leave your voicemail message (the message which is played to whoever gets to the voicemail) just press the button #3.
When you want, use call forwarding to redirect all calls to the voicemail. Alternatively, turn off the phone (on most cellular networks this will redirect all calls to the voicemail).
Related
My solution has 2-machines where one is customer facing and the other is used by store personnel; in some situations when store personnel want to take control of the customer facing system we use UltraVNC to remote into it, push our application to a 2nd virtual display and put a PLEASE WAIT screen to the customer!
With Windows10 the concept of a virtual display is no longer possible so our remote view via UltraVNC lands on the primary display which means that the customer can SEE what the store personnel are doing and can also interact/interfere with it.... and this is my struggle today!
We found with UltraVNC we can "display user input" which works with keyboard/mouse but doesn't support blocking TOUCH input (we use a touchscreen) and there seems to be no way to put a PLEASE WAIT only to disable the screen (goes black - which has customers asking if the program crashed).
So opening this up to the general public to see if anyone has experience either with UltraVNC or has some completely different proposal for me to consider! I am open to all suggestions!
You rely on windows solution, On linux there is a dbus messaging system , I don't know if there is a similar messaging system in windows.
You may have a powershell script that unplugs the display or the touchscreen input.
and send a toast message to user.
https://gist.github.com/atao/12b5857d388068bab134d5f9c36241b1
I have a problem about the gamecenter,I am developing a multiply-player game, I have finished the connecting part, good luck, I can connect the another device to play the game over the local wifi, but I tried to do it through the 3G network and external wifi, it didn't work, it appeared that the interface stopped at the view of connecting the counterpart, that means they found each other, but they didn't found the match(maybe).Sometimes, one found the match,another one still stop at the view of connecting, it didn't enter the game, I read the log information, that told me the expected number of players was one, that mean there was only one player entered the game,another one did not, the max number was two.I found many website, but no answer, maybe is that because of the sandbox? I have tried in ios5 vs ios5,ios5 vs ios6 ,ios6 vs ios6,
I am working with an embedded platform. Typical software in this devices are Linux 2.6 + Busybox, so resources are limited.
I need to run an user space application every time a USB device is connected. I need to pass as parameter to this user space app the DeviceID and ProductID.
I don't really know which strategy should I follow to achieve this:
Writing a linux kernel module.
Doing it from inside the kernel (usb drivers) i'm currently doing this, but i dont think its the best way to do it
A user space app that 'polls' for usb connected devices.?
Which one should be the best way?
Thanks for your answer!
If you want to remain in user space, then you can use libudev.
You have an example here. You can extract product id and device id from this.
Even though other options like #aisbaa mentioned, modifying kernel is interesting and challenging one. I suggest you to modify the USB driver. Reason is, you need to send the arguments to the user space application(Product ID, Device ID).
These Ids will be obtained in driver. so calling user space app with these Ids are my choice.
For calling user space app nice explanation available here.
To the best of my knowledge, there is a mechanism for USB hot plugging in the kernel.
When a hot plug event happens, the user can be notified. Unfortunately, I am not very familiar with the details.
Maybe linux-3.3.5/samples/kobject/kset-example.c will give you some ideas.
I am trying to write something for windows using WINAPI, so I can make the touch pad do whatever the mac touch pad do.
I have checked using Spy++ what WM messages the two finger taps and etc. send to the OS, but figured out it sends only those plus/minus:
WM_LBUTTONDOWN
WM_LBUTTONUP
WM_MOUSEHOVER
WM_MOUSEHWHEEL
WM_MOUSELEAVE
WM_MOUSEMOVE
WM_RBUTTONDOWN
WM_RBUTTONUP
When I tried to see what happend when clicking with 3 or 2 fingers it didn't send any particular message, unless I moved them a bit.
firstly i would like to start with this:
when 5 fingers going down show desktop (as win+D does).
How to write (driver?) something that can diagnose 5 fingers touching simultaneously the touch pad?
Of curse there is no OS messages for this, but I can make some unique combination of existed messages and by that diganose it.
If I need to write a driver can I do it generic for most of the touchpad, can I do it as add-on?
If you can post a good tutorial you are familiar with for writing a driver for windows, pls, cause I have no clue about it.
Do I need anything else to take into account :
1. Diagnose 5 fingers mouse events.
2. Make a thread in Explorer on startup that handle those new mouse messages.
thanks in advance
Mouse Input Notifications
In short, you can't.
First, there are touchpads that can physically detect only 1 finger touch, and for those who can detect many - their drivers do the translation for you.
Windows does not have any inherent support for reading multiple touch inputs - it relies on the touchpad drivers to provide them.
You can achieve your goal for SOME devices by writing your own touchpad driver (probably starting from Linux touchpad drivers and Windows driver development kit), but this is far from being simple.
And, you'll need to do this for each and every touchpad device you want to support (from Synaptics, Alps Electric, Cirque to name the few)
Only after that you can move on to implementing the reaction for the touchpad actions in applications like Explorer.
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I am looking to develop an application usable on the devices of visitors so that I can tell where they are. The initial idea I had, already done in some museums, is to have a number on specific locations within the museum, they call a phone number, enter that number, and get enhanced content, perhaps audio narration about that space. This is nicely device agnostic, though some WiFi only devices may not have a mechanism to call a phone number, but perhaps having folks on WiFi load a mobile website and choose their location (assuming the number of spots is not too many) from a list, and then click a button.
I'm new to this, and have been brainstorming on this, but I really don't know what I don't know. So here are my questions:
Can I use GPS indoors and get accurate information or will that basically not work in most buildings?
If I use a service like Skyhook Wireless, and use multiple WiFi routers, will I be able to locate the WiFi connected users accurately?
Can I use Bluetooth somehow? Setup for Bluetooth seems like a hassle, but maybe there's a Bluetooth mode that is simpler to use for an application like this?
For devices with a camera, what can I do with an image here. Photo of a QR Code? Are QR code reading libraries built into devices I can use, or would I need to find a library?
Are there are other techniques I might be able to use, maybe counting footsteps with the accelerometer somehow? Or using magnets somehow for devices with a compass?
Suggestions welcome, assume I'm trying to target as many smartphones as practical (Android, iOS, Blackberry, webOS, Windows Phone 7) that are popular in North America. If there is a way to also include devices that are not considered smartphones, that would be great too.
UPDATE
Why indoor navigation is so hard: Your phone can get you to the museum, but it can't guide you to the T-Rex by Nick Farina
UPDATE 2
Brooklyn Museum experiment with QR Codes: too soon to
tell/negative
Very few people can successfully scan and use a QR code
UPDATE 3
Think GPS is cool? IPS will blow your mind
QR codes are your best bet. They're cheap and, for example, in a museum you could put one next to every painting. For devices without a camera, you could choose to print a location-code next to the QR that they could enter manually in an app. Here's another solution as well:
Set up a wifi repeater/booster in each location you want to determine (ex: in a museum, each room) and record the SSID for each router. As the user walks from each room to the next, their device will automatically switch to the repeater with the highest quality signal (the one in that room). Simply have your application test for which SSID the user is connected to.
GPS is not accurate enough and may not work inside buildings and Skyhook wireless is only for one address. Having users call a number and/or go to a website to manually select a location is too many steps for the user, and the user may not have reception to place a call. Bluetooth is a huge hassle.
Can I use GPS indoors and get accurate
information or will that basically not
work in most buildings?
no, GPS needs a clear view of the sky. regardless, the accuracy of GPS is around +/- 50 feet and can be worse.
If I use a service like Skyhook
Wireless, and use multiple WiFi
routers, will I be able to locate the
WiFi connected users accurately?
aGPS is less accurate than GPS.
Can I use Bluetooth somehow?
bluetooth is not location aware.
android 2.3 introduces something called near-field communications. this would theoretically allow the person to wave their phone over a receiver and transmit information. it's quite new and i think the nexus s is the only device with hardware support for this. at best you are looking at some early adopter pain for that one.
Photo of a QR Code? Are QR code
reading libraries built into devices I
can use, or would I need to find a
library?
that's a good idea. QR codes are popular because they are simple. libraries are not part of the SDK but they exist. it would be hard to build one yourself if it came down to that. by the same token, you could just as the user to enter a simple location code. essentially the same thing and might be simpler than aligning the camera for a QR read.
it does depend on your application. if you want this to automatically locate everyone without an user intervention, QR codes / codes won't work because the user has to take some action. even NFC, from what i've read, operates on very short distances so the person would need to wave the phone across something closely not just walk by.
If you're talking indoors, I think you have some great ideas. GPS may be spotty depending on the building, and Wi-Fi triangulation only works if your signal is proportional to the proximity of the user to the unit. Here is my suggestion:
QR Codes sounds like the best option here if you don't mind having them all over the place. If someone can scan a QR code, (which they are on most all platforms, it's just making sure your users have a decoder installed and can actually use it), then you have three things going for you:
You know they have to be in range to scan it...so that's far more accurate than you can get with other location devices.
you can use the QR code to embed a link to a download site or embed the actual information into the QR code if it's not too much.
Most smartphones today have QR code scanner apps built in, and there are libraries (java and .net) that you could use to build your own app.
The downside here of course is that you're assuming the cameras are good enough quality and that someone isn't going to deface your QR code so that subsequent visitors can't read it.
Keep in mind the bump application. They don't use bluetooth or any form of wireless technique to determine if two people are near each other. http://bu.mp/faq
Since you have 1 building that you care about. Why not simply have a root device or network of devices in your building that you care about. This root device would communicate with all the clients to do your bidding.
Maybe cellphones can´t solve your problem, have you considered cameras on each room and a QR code tag on each guest? you might get the images from the security camera since they are infrared. Another way of achieving this is by locating the camera in front of the door so that the guests are always seen by the QR code algorithm.
Cellphones are just too diverse to implement this, have you thought that the guests might not have a cellphone at all?