XM Magic Hex Byte Codes

For those interested in playing around with talking to an XM Direct or Commander unit from you computer.  Here is the info you will need.

Here is the magic byte codes to get the XM Direct and Commander units into a PCR mode  Once this is done all original byte codes for the PCR work fine...

You send 3 commands to the commander or direct and then it will accept all original XMPCR commands.

They are the following, sent in this order:

5AA50003740001740D
5AA5000474020101740D
5AA50003740B00740D

If you want the info on how the original PCR protocol can be used as well, email me.
bitoholic [(a]) gmail [(dot)] com

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