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Two Crazyradios died over last two weeks
Posted: Mon Mar 28, 2016 12:40 am
by yoshi
Hi,
I had two Crazyradios die in the span of the last few weeks. They don't show up as USB devices on two computers (one Linux in dmesg and lsusb, and one Windows 10 in USBview) and no LED flashes. They both worked previously on the same computers and other USB devices work on the same ports. I am wondering if there is some known point of failure or if there is something else I can try to debug the problem.
Thank you.
Re: Two Crazyradios died over last two weeks
Posted: Mon Mar 28, 2016 7:51 am
by tobias
Hi yoshi!
There have been a few cases where the diode D1 has come off, as it is close to the edge of the PCB. Please check if it is still there. It is just below the USB connector. Other then that no know HW problems so then it is probably software issue.
Re: Two Crazyradios died over last two weeks
Posted: Tue Mar 29, 2016 4:18 am
by chad
yoshi wrote:I am wondering if there is some known point of failure[...]
Sorry to hear about your trouble.
I have 2 Crazyradios and 1 Crazyradio PA and have not had any problem with them over the last couple years. I even accidentally discharged some static into one when picking it up this last winter and it still works great! Amazing.
Re: Two Crazyradios died over last two weeks
Posted: Mon Apr 18, 2016 8:11 pm
by littleuser
Hello!
I have a similar situation
. Nothing in lsusb and no led flashes...
But dmesg displays many
device descriptor read/64, error -110
device descriptor read/8, error -110
unable to enumerate USB device
and in windows i have
USB\VID_0000&PID_0000\5&C2A5B48&0&1
I tried to use your distribution for raspberry pi 2, but the result did not get.
Bus pirate and
https://github.com/koolatron/buspirate_nrf24lu1p be able to help?
Please tell me in what way I could do that, that-be in the future, I did not do it again.
Thank you!
Re: Two Crazyradios died over last two weeks
Posted: Tue Apr 19, 2016 10:20 am
by tobias
As you don't get any LED flashes I suspect the power has failed. Have you checked that diode D1 is still there. Located just below the USB connector.
Re: Two Crazyradios died over last two weeks
Posted: Tue Apr 19, 2016 11:39 am
by littleuser
D1 in situ.
http://i.imgur.com/891IfeB.jpg
Later I will try to find a multimeter to check d1.
Wait. Now I noticed some very dim green light when pulled out from usb, but only 1 time, I tried to do it again but it does not work.
Re: Two Crazyradios died over last two weeks
Posted: Tue Apr 19, 2016 12:36 pm
by tobias
@littleuser
The board you posted a picture from seems to be a clone. I would guess it is a power failure. Check if you get 3.3V at pin 5 on the expansion port. Schematics
here.
Re: Two Crazyradios died over last two weeks
Posted: Thu Apr 21, 2016 7:15 am
by Mitteau
tobias wrote:Hi yoshi!
There have been a few cases where the diode D1 has come off, as it is close to the edge of the PCB. Please check if it is still there. It is just below the USB connector. Other then that no know HW problems so then it is probably software issue.
I had exactly the same problem. Diod D1 fly away for unknown reason, perhaps a small chock. I replaced it with a bit of wire soldered n the same place. Looks a bit dangerous in case of expansion deck ?
Regards
Jean-Claude
