I am using WiPy 2.0 Pycom Board.
When trying to resolve the names of the available devices the names are not resolved properly.
bluetooth.resolve_adv_data(adv.data,Bluetooth.ADV_NAME_CMPL)
This line prints the following data.
None
HE<�#?�'�?
When print the short name
bluetooth.resolve_adv_data(adv.data,Bluetooth.ADV_NAME_SHORT)
It prints out "None"
How to get the proper name of the scanned devices. I am new to this
Thank you!
Using manufacturer data, we can get the proper data from the sensor.
mfg_data = bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_MANUFACTURER_DATA)
advData = binascii.hexlify(mfg_data)
Related
I'm trying to print some RFID tags and retrieve their TIDs to store them in my system and know which tags have been printed. Right now I'm reading the TID and sending it back to my computer (connected via USB with the my ZT421 printer) with the following code:
^RFR,H,0,12,2^FN0^FS^FH_^HV0,24,,_0D_0A,L^FS
^RFW,H,2,12,1^FD17171999ABABABAAAAAAAAAB^FS
This is repeated for each tag that I'm printing. However, when printing 10 tags, I only get 9 TIDs. If after that I try to print 7 tags, I still get 9 TIDs. To be honest I'm a bit lost now, because even trying to use the code examples from the ZPL manual (I've tried the ^RI instruction also) it doesn't seem to work.
The communication with the printer is beeing done through Zebra Setup Utilities' direct communication tool.
I tried to retrieve each printed tag TID with:
^RFR,H,0,12,2^FN0^FS^FH_^HV0,24,,_0D_0A,L^FS
^RFW,H,2,12,1^FD17171999ABABABAAAAAAAAAB^FS
but I always get 9 TIDs.
I also tried getting the TID with the ZPL manual example for the ^RI command:
^XA
^FO20,120^A0N,60^FN0^FS
^RI0,,5^FS
^HV0,,Tag ID:^FS
^XZ
And I got absolutely nothing returned to the computer, just a mssage saying "Tag ID:" and no value shown.
I would really appreciate some help with this...
Thanks in advance!
I've fixed the issue, but I'm going to leave the solution here just in case someone else is facing the same problem.
I thought that maybe it wasn't a code issue, but something related to the computer-printer communication. It turned out to be the case. The Zebra Setup Utilities program has a button that says "options". If you click it, a new screen will open and there you can configure the seconds that the program will wait for the printer response (in this case through USB). By default it's set to 5, i changed this value to 100, which is the maximum. This meant that instead of just printing and retrieving the TIDs of 6-9 tags, now I can do it for about 100.
This is not amazing because in my case it implied creating 25 files for the 2500 tags I had to print and store the TIDs, however it's far better than before.
I am using devcon to query a verifone device to get the serial number and I a trying to find the serial number below "123-552-666" and output that to a text file. I have been playing around with various commands but just cant seem to get it.
I have used this:
findstr /RC:"[0-9][0-9][0-9]-[0-9][0-9][0-9]-[0-9][0-9][0-9]" "verifone1.txt"
But just got this lie returned
USB\VID_11CA&PID_0300\123-552-666_____
Below is the full data I am searching. Would appreciate any assistance
USB\VID_11CA&PID_0300\123-552-666_____
Name: Verifone V,P Family USB UART device (COM7)
Driver is running.
I have a Zebra RFD8500 here and I connected to it via the terminal. I am trying to use the ZETI command read to access epc's, but it does not read anything.
But if I use the ZETI command inventory it finds all the tags around.
Anyone knows how to use the read command properly? Also is there some kind of filter per default on?
I am using the developer example on page 174 Link to PDF
Not sure if you solved this problem, but I couldn't find anything else via Google. I had the same problem with using read in ZETI (Zebra RFD8500). The Zebra tech support told me that to use access operations like read and write, you have to turn off dynamic power (which I think is on by default).
Unfortunately, I am not using the iOS API/SDK (writing a custom one for another device), but here's the gist of what you'd be doing:
Turn off dynamic power
Do an inventory
Read some memory bank, like the EPC bank. Optionally, you can also specify access criteria to single out a tag.
To test how this worked in ZETI, I screened into the RFD8500 (on my Mac, doing ls /dev/tty.RFD* lists several ttys, I chose the one ending in "-R"):
screen /dev/tty.RFD8500{long number}-R
Then I issued these commands:
dp .disable
in
rd
Commands:
dp = setdynamicpower
in = inventory
rd = read
After issuing "rd", you should be able to see the user memory banks (the default bank for the "rd" command).
I am trying to use the following function:
PCHAR pVID_PID="vid_04D8&pid_fc5f";
DWORD n= MPUSBGetDeviceCount(pVID_PID);
It is imported from mpusbapi.h, where it is defined as such:
DWORD (*MPUSBGetDeviceCount)(PCHAR pVID_PID);
I was wondering where I can find my USB device's VID&PID information. The one I am using doesn't seem to be working because cout<<n ouputs 0! Thanks in advance for any help.
You will normally find them in the driver '.inf' files associated with the device you are using.
How to get the IMEI of a Java ME device in a common way that is applicable to all devices
Usually, using java.lang.System.getProperty() can return the device IMEI.
Unfortunately, the String parameter you need to use to get the IMEI will change from one handset manufacturer to the next.
Strings to try:
imei
phone.imei
com.lge.imei
com.nokia.imei
com.nokia.mid.imei
com.siemens.imei
com.sonyericsson.imei
com.motorola.imei
...
you get the idea.
you may need to uppercase the last part of the string.
the format of the result can change too.
it can be a full imei with a "IMEI" prefix and 3 "-" in the middle of 17 digits.
it can be a normalized imei of 13 or 15 digits...
there is no standard way to get the IMEI via Java ME. some phones expose the IMEI as a system property, but others don't or require the midlet to be signed to operator or manufacturer domain (ie. not by you).
In the game i'm developing, to get an unique id for every cellphone (so that they can't duplicate and share savefiles) i use the bluetooth mac address that is different for every single bluetooth device and the java code to get it is the same on every device =D
I have tried what is suggested by both ax and quickrecipeonsymbianos however they both solve the purpose in an elegant way. However, in the BlackBerry we have the getDeviceID() to get the unique id of the device, but Java ME lacks this functionality