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by yangz
Thu Feb 25, 2016 3:22 am
Forum: General discussion
Topic: Bluetooth 4.0 (LE, low energy)
Replies: 33
Views: 45324

Re: Bluetooth 4.0 (LE, low energy)

I'd check that the adapter is still up with 'hciconfig - a'. Beyond that, I can't offer much more help. Get familiar with the gatttool options. You might try --random with it, as well as --primary. My experience with BlueZ and BLE in particular is mostly trial and error, in particular error. Please...
by yangz
Wed Feb 24, 2016 6:37 am
Forum: General discussion
Topic: Bluetooth 4.0 (LE, low energy)
Replies: 33
Views: 45324

Re: Bluetooth 4.0 (LE, low energy)

I'd check that the adapter is still up with 'hciconfig - a'. Beyond that, I can't offer much more help. Get familiar with the gatttool options. You might try --random with it, as well as --primary. My experience with BlueZ and BLE in particular is mostly trial and error, in particular error. Please...
by yangz
Tue Feb 23, 2016 2:17 am
Forum: General discussion
Topic: Bluetooth 4.0 (LE, low energy)
Replies: 33
Views: 45324

Re: Bluetooth 4.0 (LE, low energy)

It's hard to say. It looks like you've got BlueZ installed and running properly. You might try sudo hcitool lecc --random <bdaddr> for devices with a random address type. The watch could be advertising in 'NOCONN' (non-connectable) mode. I didn't try very hard, but I couldn't connect the Pi to my P...
by yangz
Mon Feb 22, 2016 8:35 am
Forum: General discussion
Topic: Bluetooth 4.0 (LE, low energy)
Replies: 33
Views: 45324

Re: Bluetooth 4.0 (LE, low energy)

I've had no problems with the CSR 4.0. But also no experience with iPhones. What does 'hciconfig -a' show, when the adapter is discoverable? hi Douglas6 I have some questions about BLE. I can't connect to my BLE device ( MIO GLOBAL-ALPHA2, a smart watch which can detect heart rate and send the valu...
by yangz
Tue Jan 26, 2016 7:23 am
Forum: Pidora / Fedora
Topic: Extend root filesystem using CLI parted & resize2fs
Replies: 14
Views: 175844

Re: Extend root filesystem using CLI parted & resize2fs

I have solved my problem for extend root filesystem in Ubuntu mate 15.10 for Raspberry Pi 2 . Thank you very much! :D
by yangz
Mon Jan 25, 2016 6:34 am
Forum: Beginners
Topic: Unable to use 'startx'
Replies: 3
Views: 1007

Re: Unable to use 'startx'

I also encountered the similar question ! The information below is my board and OS:

board: Raspberry Pi 2 B
os: Ubuntu mate 15.10

I can't logged into my count even the password is correct. So I followed your guide: sudo rm ./Xauthority .
Congratulations ! It's work ! Thank you :D

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