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CC2650 Sensortag/Beaglebone black gatttool error

jonkey

Hello all,

I am using a beaglebone black to try and connect to the CC2650 sensortag and just read temperature. I have the newest version of Bluez and Debian on the beaglebone and using the most current revision of the sensortag FW.

 

Using this blog post as a guide

 

Michael Saunby: Raspberry Pi and TI CC2541 SensorTag

mike.saunby.net

 

image

we know that we have to use gatttool to tell the sensortag I am interested in recieving the temperature (handle 0x24), however, when I try to send a command I get an error from gatttool saying: "A valid handle is required." I followed all the steps in the comments on the blog post to try and resolve this issue but it did not work. The interesting thing is I can read from handle 0x21 where the IR temperature data is stored, but since the sensor is not on the data received is 00 00 00 00.

Has anyone encountered this kind of an issue using the beaglebone black?

 

Thanks,

Jon

Parents
  • 0

    Did you do all the steps:

    1. sudo hcitool lescan
    2. sudo hcitool lecc 90:59:AF:0A:A8:4E
    3. gatttool -b 90:59:AF:0A:A8:4E --interactive

    image     Bold is gotten from first command for SensorTag.

    • Next write to handle 0x29 must be set to a value of 01 to turn on the thermometer
    • The values 0x25 and 0x29 are "handles" that we either read from (0x25 holds the thermometer reading)
    • Done
Reply
  • 0

    Did you do all the steps:

    1. sudo hcitool lescan
    2. sudo hcitool lecc 90:59:AF:0A:A8:4E
    3. gatttool -b 90:59:AF:0A:A8:4E --interactive

    image     Bold is gotten from first command for SensorTag.

    • Next write to handle 0x29 must be set to a value of 01 to turn on the thermometer
    • The values 0x25 and 0x29 are "handles" that we either read from (0x25 holds the thermometer reading)
    • Done
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