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The 3GPP 25.331 provides the asn1 syntax for the specs of WCDMA RRC packets sent over 3G networks between phone and base station, however, you need a asn1 compiler to convert it to C code to do the decoding in a software program.
Thanks to Lev Walkin’s asn1c open source asn1 compiler, you can convert asn1 sytax source into C code ready for decoding the raw binary packets! This is a huge contribution by Lev Walkin. Thanks so much, Lev!
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Normally the SimpleRTK2B board’s XBee mount point only supports UART2 which doesn’t support UBX messages, below video shows how to map UART1 to UART2 and thus using UART1 on the XBee port:
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Thanks to our friend Geoff from Australia for sharing this tip of using the Ardusimple SimplRTK2B board with U-Blox U-Center program on Windows 7 PC (normally it works only with Windows 10). The trick is the power the board first via the ‘power+xbee’ usb port then connect to the main ‘power+gps’ usb port and disconnect the first one - this is shown in below video:
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Although not really “native”, but works well by parsing a command line call instead - credit goes to “Alex P.” for the answer in http://stackoverflow.com/questions/14813875/how-to-get-imsi-number-in-android-using-command-line - thanks for the command.
