11 Jul
2014
11 Jul
'14
2:41 a.m.
Hey everyone!
I've been trying to set up the Meraki Sparky board to flash the openwrt
code to it, but when I connect the pins and plug in the usb adapter to my
laptop and run the meraki-flasher script, I get this exception
"SerialException('device
reports readiness to read but returned no data (device disconnected?)')"
and the green led on the meraki board isn't lit. But $ dmesg | grep tty
shows that it's connected.
Does anyone have any ideas as to good way to pinpoint what the issue may
be? Not sure if the issue is the usb adapter I'm using or the board
itself, but I was going to try buying another usb to ttl adapter tomorrow
to see if that helps. Any advice would be awesome!
It was nice meeting you all tonight!
Daphne
11 Jul
11 Jul
5:56 a.m.
I have no experience yet, only interest (in getting them working ;), but I
have a couple of questions:
(1) How are you powering the board--AC adapter or power-over-ethernet? (I'm
not sure POE works, would be great to know.)
(2) What sort of adapter are you using (i.e. did you have to manually set
the pins) and is it fully and properly connected (physically)?
(3) Does the board need to be set into a particular "flash" mode, as some
of the other routers, perhaps by pressing/holding a reset button?
Cheers,
Matt
On Fri, Jul 11, 2014 at 2:41 AM, Daphne Larose <daphne.larose(a)gmail.com>
wrote:
5:55 p.m.
Thanks for getting back to me on this :D
(1) I was attempting to use POE but may try an AC adapter if i can find one
lying around. Also, I think when Dan and I tried flashing it last night at
the meet-up it was over POE and he was able to get the script to at least
start transferring, but he was also using a different usb adapter. My next
goal is to find a different usb adapter and try that out.
(2) The usb adapter is a manual one so it's possible something was off with
my configuration even though I checked it a bunch of times (though it was
pretty late in the evening lol). Shoutout to Max: did you have problems
with this adapter when you were using it?
(3) That is a reallllly good question and I didn't even think of that
possibility! I'll dig through the meraki docs to see if any mention is
made regarding that.
2014-07-11 5:56 GMT-07:00 Matthew Senate <mattsenate(a)gmail.com>om>:
--
Daphne Larose
BA '10 Barnard College of Columbia University
MSCS '11 Georgia Institute of Technology
Software Engineer, Apportable Inc.
9:41 p.m.
I'm pretty sure he was not using POE. And that could be the problem..
Dumb me. We saw LEDs come on, so assumed it was powered. The USB/serial
console cable was supplying the voltage.
Here's what I found on the noisebridge wiki:
Power
- 5 - 22 V DC
- Power Over Ethernet, 12 - 22 V (non 802.3af )
- Power consumption: 12 W max; 3 W typical
- *15 V/0.8 A DC power adapter included*
- Power Over Ethernet injector included
http://wiki.openwrt.org/doku.php?id=oldwiki:openwrtdocs:hardware:meraki:out…
https://www.noisebridge.net/wiki/Sparky
--
Chris Jefferies
(510) 409-0003 - mobile
On Fri, Jul 11, 2014 at 5:55 PM, Daphne Larose <daphne.larose(a)gmail.com>
wrote:
12 Jul
12 Jul
3:34 p.m.
Hi Daphne.
The serial tty will show up in dmesg as soon as you plug in the usb serial
adapter. It does not know about the meraki board. The meraki board needs 12
volts or 15 volts DC. I have not tried powering it with PeE, but be aware
that only one of the two ethernet ports takes PoE. Try to find a 800 mA or
more 12 volt power supply and use that to power it on.
If you can't get it to work, I will be back at mesh hacknights the coming
Tuesday and Thursday to help troubleshoot.
On Fri, Jul 11, 2014 at 9:41 PM, Chris Jefferies <chris(a)freeranger.com>
wrote:
4028
days inactive
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4 comments
4 participants
participants (4)
-
Chris Jefferies -
Daphne Larose -
Marc Juul -
Matthew Senate