I'm from Kazakhstan. I use "paywall.pw" system for paid subscription to private channel in telegram. But I need an American analogue of this system for withdrawing in dollars to an American card.
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I want to develop a mobile app that listens for broadcasts by a BLE device. My idea generally is patterned on the game "I spy".
In a room full of objects, there should be a numerous Bluetooth beacons. The beacons will have a button and when the button is pressed, it would send a broadcast. One person goes in the room to solve the puzzle so there won't be the need to consider if the broadcast reaches multiple phones.
When the button is pressed, the app should check the clue given and read the corresponding beacon's ID and then alert the user whether they're correct or not.
I would like this to happen without having the user's phone pair with all BLE beacons.
For the beacon, i'm thinking to use something along the lines of an Adafruit LE Friend or flora wearable. This would be soldered to a CR 2025 or similar battery. Do I also need an Arduino or can this be standalone?
I'm thinking that it could be standalone but I have no experience here
For your use case, the flora wearable is the more suitable choice because you can just solder a battery to it and get it to work (the Adafruit LE Friend requires a PC as it is a USB dongle). You will need to do some reading on basic Bluetooth Low Energy (BLE) concepts, and I recommend that you focus on the following:-
Advertising/Broadcasting: This is what your BLE peripherals such as the flora will be doing. These devices will be sending adverts when a button is pressed or a command is sent.
Scanning/Observing: This is what the app developed on mobile phones will do. Your apps will be continuously scanning for those LE adverts and display relevant information to users when those adverts are read.
Luckily these are relatively easy BLE concepts and there are already many examples for both advertising and scanning.
For more resources, I recommend having a look at the following:-
Bluetooth Low Energy: A Primer
Getting Started with Bluetooth Low Energy
Introduction to BLE
I hope this helps.
I want to send all extensions and conference bridge participants of asterisk voice to a analog telephone cable which is connected to a voicelogger ( recorder system) . How can it be done ?. I think this is possible by connecting Analog phone cable to ATA device ( linsys pap2) and sending stream to that ATA extension . But the challange is voicelogger is not an automatic answer machain .
First i have say you that idea is really strange. Asterisk can record all calls and record storage will cost much less then any analog device storage.
If you still insist you need it send to analog, you need multiple line analog device(every call record will require different wire).
Also you need FXS dahdi card and/or sip fxs adapter to connect your recorder.
You can orginize recording by using ChanSpy and/Or Confbridge as "ghost" call to all your calls with other dialling your fxs recording bank.
Complexity of such dialplan will be above average and require significant efforts and asterisk knowledge. You can read this links to get idea.
http://www.voip-info.org/wiki/view/Asterisk+n-way+call+HOWTO
http://www.voip-info.org/wiki/view/Asterisk+cmd+ChanSpy
http://www.voip-info.org/wiki/view/Asterisk+auto-dial+out
Other options you can have is record by asterisk and play recorded files one-by-one to your analog recorder or just use usual computer to playback files to recorder.
I am building a system to monitor a solar panel system using an arduino. The arduino is to interact with the user through SMS directly without needing internet.
However, I also want to allow the arduino to send data through sms to my application containing which it will read off the solar panel system. The idea is to allow the web app to receive data from the arduino without the arduino being connected to the internet. I would like to use Twilio SMSing service to achieve this whether any international number from African countries for e.g. will successfully be able to send SMSs to the server.
My question is whether there could be problems regarding receiving smses from international countries (in Africa for e.g)
You should be able to receive SMS on a Twilio number from international locales (accounting for message enablement and carrier details).
If however you want to send SMS globally from a Twilio number, I suggest you follow these guidelines.
I am making an android application that requires me to detect the user's motion.
My application also requires me to use an external sensor, which is a Bluetooth smart sensor, for some other purposes.
Now I have two options:
to use the accelerometer and gyrometer of the android phone
fetch motion information from the bluetooth smart sensor.
I understand that Bluetooth Smart (ble) is more energy efficient than Bluetooth sensors.
However, I am confused as to which of the above options will provide me a more energy efficient solution on the Android device. EDIT: I am presently not concerned with the energy efficiency of the bluetooth device.
Also, please see that I want this comparison only because I don't want to detect accurate user motion, otherwise an external device(bluetooth low energy device) would have been better hands down.
The accelerometer and gyrometer will take roughly the same amount of power whether it's on the phone or the external device. The difference is the external device has to transmit that information over a radio signal to the phone. It makes more sense to just use the Phone's existing information if that's sufficient because it won't require any radio transmissions and will require less power. Also, the phone will have a much larger battery.
The sensors on the phone have nothing to do with Bluetooth... they're incorporated right into the hardware.
EDIT: The difference between Bluetooth and BLE is that BLE uses the radio much more sparingly. Radio transmissions take a good chunk of power. So, using on-board sensors is going to (most likely) take far less power than using a radio to communicate with an external sensor. Also, I have a feeling that the accelerometers are always on on the cellphone so getting readings from those is going to take no more power than is already being used, too.
The payment gateways (Anyone) Is they treat Credit card as different and debit card as different?
because I am in the middle of integrating one of payment gateway in our application and See in there documentation has separate API's for Debit Card and Credit Card.
As far as your payment gateway is concerned a debit card and a credit card are processed the same way. This has been my experience with Authorize.net, Braintree, and Paypal.