I just configured Odoo application (POS) for a client! And he intends to use it in a tablet! The issue I am facing is that how could we connect odoo pos to a Bluetooth thermal printer! I heard of POSBox, but how can we achieve this without POSBox! I searched everywhere and no satisfactory solution has been found!! Any help will be appreciated!
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I have an IoT device that connects to my wifi router using wifi. There is a limitation of capturing network logs on the device itself so I thought to capture it using Wireshark.
I am using windows 10 and downloaded the latest version of Wireshark. Now that my laptop and my IoT device connect to the same network through the same router, I am not able to capture the packets in and out from my IoT device.
I put the filer as ip.addr == {ip of the IoT device). But it shows nothing.
Is it possible to capture these packets using a laptop using Wireshark?
Let me know, please.
Thanks
Akhilesh
Is it possible to capture these packets using a laptop using Wireshark?
Yes, but your capture setup is almost certainly incorrect. In a nutshell, you need to be able to capture packets in monitor mode, and you're not doing that. Whether it's possible to do so using the WiFi card on your laptop is unknown, because not all cards support monitor mode on Windows.
Since it's impractical to provide an answer that simply repeats information already provided elsewhere, I'll refer you to the following sites for more detailed information:
The Wireshark WLAN (IEEE 802.11) capture setup wiki page
Jasper Bongertz's blog about Wireless Capture on Windows
See also my answer to this question, which basically provides the same information.
I recently have not much experiance about working with a raspberry.
I need to send real-time data from my Raspberry Pi 2 Model B to an iPhone. The Raspberry will get the internet connection via UMTS stick.
I thought about a websocket but I didn't find any information what websocket would be the best and how to config it.
So is there anyone who already has a solution about it?
Thank you!
WebSocket requires a WebSocket (WS) server or a webserver that understands the WebSocket protocol as defined by the IETF. So for a RPi to talk directly to your iPhone, one of the devices has to have a WS server... which is not likely.
There are a couple of possible alternatives (there are certainly others). You could send data from the RPi to an external server that hosts a WS-capable server which then forwards that data to your iPhone, either thru a native app or a web browser. The data is logically transmitted between the two devices, but physically sent using an external service to coordinate the two. Visit http://goo.gl/Utg0dU to see data exchanged between an RPi and an iPhone using web messaging (src available).
Another possible alternative is to use Bluetooth to send data directly from the RPi to the iPhone. Being a Java dude, I know you can run a JVM on the RPI and I know there's a Java bluetooth API, and obviously the iPhone supports bluetooth, so its definitely do-able with a JVM. A quick Google shows plenty of support for bluetooth on the RPi with other languages. So you're good with this approach too.
If the Raspberry Pi is connected to the Internet with a public IP Address (I guess it doesn't since it uses UMTS) then you can setup a TCP Listener where the iPhone will connect to. If it doesn't and you can do Port Forwarding (I guess you can't) then you can forward the TCP port to the Raspberry Pi. The above examples also work with an HTTP server.
If the iPhone is near the Raspberry Pi and you're writing an app for the iPhone you can use a Bluetooth transceiver on the Pi to communicate.
If you can't do any of this you may need a third server with a public IP where both devices will connect to and the server will relay all connections from one device to the other.
In general, it would help if you could describe a little bit better what you want to achieve and the network topology involved so we can provide more specific answers.
I have purchased two Redpark's L2-NET cables and tried to test the basic connectivity using the examples provided in RedSocket SDK but its not able to connect.Can someone help me in understanding the exact process to establish a successful communication between my ipad/iphone and Ethernet port using Lightening to Ethernet cable.
The reason is my iPad IP&subnet and my machine IP&subnet are not matching.
I am looking at connecting a thermal receipt printer to Google Open Print, is this possible? and if so are you aware of any thermal printers that I can purchase?
The reason for the above is that I have a takeaway shop with an online store. When an order is placed the order then gets printed on an A4 Injet printer. This is wasting me lots of paper and ink, Ideally I'd like it do be done with a thermal printer. I know the website can work with this I just need to make sure I can get a thermal printer to work with Google Open print.
In the end I used the Espon TM88V Receipt printer. Once it was installed on a computer and working any printer can be added to Google Print. Please know that the printer I choose was a nightmare to get a driver for an up to date OS such as Windows 7 & 8. This printer was only supported for XP from my research but after trying all drivers for old OS's it worked. There are now drivers being made by others to support newer OS's.
There are a lot thermal receipt printers available in the market. EPSON is provides standard reciept pritners which are very good.
You can opt for TMT88 series which are pretty good.
But not sure about the google open print.
I want to send a file to a device (phone) using bluetooth nothing fancy. But i don't know where to start should i find a driver? Maybe one of you guys worked with bluetooth before and can give me a starting point.
I hacked some bluetooth support into Indy (because you can only(?) read/write bluetooth via sockets: Bluetooth Programming with Windows Sockets) a month ago.
See my post on the indy forum for the code:
Indy Bluetooth support
We use it here for reading a bluetooth barcode scanner (both master and slave mode), with auto connect etc (maybe I need to update the posted code for master support, please let me know if you need it)
I haven't worked with it before but I'd start on MSDN
The article explains how to use windows sockets to connect to Bluetooth devices.
There's probably wrappers for these methods. I'll add some more information after I've looked into it