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dazer

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Posts posted by dazer

    Trying to use YS1 rootless with rfcat

    in SDR - Software Defined Radio

    Posted

    I've been trying to use my YS1 rootless, but I'm having difficulties.

    I've created my entry in /etc/udev/rules.d as described here: https://github.com/ecc1/rfcat/blob/master/etc/udev/rules.d/20-rfcat.rules 

    name@host:~ $ cat /etc/udev/rules.d/20-rfcat.rules
SUBSYSTEMS=="usb" ATTRS{idVendor}=="1d50" ATTRS{idProduct}=="605b" MODE:="0660" SYMLINK+="RFCAT%n", GROUP="dialout"

    This matches my YS1    

    name@host:~ $ lsusb
Bus 001 Device 004: ID 1d50:605b OpenMoko, Inc.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

    But after running 

    sudo udevadm control --r

    (and even after a reboot) I get this:
      

    name@host:~ $ rfcat -r
Error in resetup():Exception('No Dongle Found.  Please insert a RFCAT dongle.',)
Error in resetup():Exception('No Dongle Found.  Please insert a RFCAT dongle.',)
Error in resetup():Exception('No Dongle Found.  Please insert a RFCAT dongle.',)
^CTraceback (most recent call last):
  File "/usr/local/bin/rfcat", line 56, in <module>
    interactive(ifo.index, DongleClass=RfCat, intro=intro)
  File "/usr/local/lib/python2.7/dist-packages/rflib/__init__.py", line 190, in interactive
    d = DongleClass(idx=idx)
  File "/usr/local/lib/python2.7/dist-packages/rflib/chipcon_nic.py", line 295, in __init__
    USBDongle.__init__(self, idx, debug, copyDongle, RfMode)
  File "/usr/local/lib/python2.7/dist-packages/rflib/chipcon_usb.py", line 176, in __init__
    self.resetup(copyDongle=copyDongle)
  File "/usr/local/lib/python2.7/dist-packages/rflib/chipcon_usb.py", line 302, in resetup
    time.sleep(1)
KeyboardInterrupt

    but immediately after that, it still works with the sudo 

    name@host:~ $ sudo rfcat -r
No module named enum
'RfCat, the greatest thing since Frequency Hopping!'

Research Mode: enjoy the raw power of rflib

currently your environment has an object called "d" for dongle.  this is how
you interact with the rfcat dongle:
    >>> d.ping()
    >>> d.setFreq(433000000)
    >>> d.setMdmModulation(MOD_ASK_OOK)
    >>> d.makePktFLEN(250)
    >>> d.RFxmit("HALLO")
    >>> d.RFrecv()
    >>> print d.reprRadioConfig()

    Any ideas what I'm doing wrong?

    Many thanks!

    Noob - rfcat - Hacked my Ceiling Fan - NOW WHAT?!

    in SDR - Software Defined Radio

    Posted

    So, building off what you wrote, I've got:

    d****@***pi:~ $ cat top2.py
    #!/usr/bin/python
    from rflib import *

    d = RfCat()

    d.setFreq(303808260)
    d.setMdmModulation(MOD_ASK_OOK)
    d.setMdmDRate(3600)
    d.RFxmit("\xb2\xd9\x24\xb2\x58\x00\x00\x00\x00\x00" *10)

    However, when I try to run it, I get:

    d****@***pi:~ $ python top2.py
    Error in resetup():USBError('error sending control message: Operation not permitted',)
    Error in resetup():USBError('error sending control message: Operation not permitted',)
    Error in resetup():USBError('error sending control message: Operation not permitted',)
    Error in resetup():USBError('error sending control message: Operation not permitted',)

     

    If, however, I go into RfCat and paste those same commands, my light turns on.

    HALP, please!

     

    Noob - rfcat - Hacked my Ceiling Fan - NOW WHAT?!

    in SDR - Software Defined Radio

    Posted

    I'm very green to this style of programming, but I could use some help please.

    I picked up an RTL-SDR dongle and a YardstickOne this week.  I've figured out the control codes for my 20+ year-old ceiling fan and its lights and can manually transmit them via the YS1.vs Fan 

    My problem now is that while I can paste commands into rfcat running on a centrally located RPI3, I would like to be able to run those at will. Fan Hi, vs Fan Off, vs Up Light On, etc.

    Those sets of rfcat commands work just fine when *I* put them in.

    Can anyone please point me to a way to a) lump my rfcat commands into something I can call collectively, and b) trigger them from outside.

    My ultimate goal is to have Amazon Alexa call these scripts, but I need to learn more first.

    Thanks for any help you can provide or point me to!

     

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