The 5 GHz doesn't really matter at this point since that device is only for client
connections... Although LibreMesh on one router of a two-router network doesn't make
a big difference, and flashing via TFTP (the only way for the C20) isn't the sort of
thing I want to teach people, since it's a bit more complicated than flashing via a
web interface. I think this training's software part will be about configuring
Ubiquiti and TP-Link devices through their factory interfaces, and LibreMesh will wait
until some other time. This is more in line with the economic and technical reality here
anyways.
Sounds like spending an extra $20 for a WDR3500 would have made sense, but the budget was
tight and now it's too late to return the C20. There are only three WDR3500 for sale,
so it's not like we're going to build many networks with them. The C7 is
available for $110, but that's three times the price of a C20.
I spent a while looking through MercadoLibre (the primary online market here, owned by
eBay) and OpenWrt wiki and WikiDevi... Maybe someday we'll figure it an easier way to
navigate all this information. This takes us back to the conversation from last year about
how to improve our documentation.
The 842 has a different chipset and bigger flash, looks ideal but it's not available
here. Ooooooh, I say that, and I just checked again and there are five of them from a
seller in another city for $39 each... Opportunity knocks!
~ Patrick
El 10 de junio de 2018 7:20:33 GMT-05:00, bruno vianna <bruno(a)pobox.com> escribió:
I don't know if it helps, but we have been running
lime on a TP-Link
TL-WR842N/ND v3 as gateway very smoothly.
On Sat, Jun 9, 2018 at 6:59 PM, Patricio Gibbs
<patricio(a)altermundi.net>
wrote:
On Monday night through Wednesday we have a
training that includes
setting
up a 400 meter link (near Puyo, Ecuador, UTC-5).
We have purchased a TP-Link Archer C20 v4. We plan to connect it via
Nanostation2 and NanoLoco2 with a WR840Nv5(ES) that belongs to a
small ISP
(why this arrangement? combo of cheapest new and
used hardware that I
thought would work). The 840N only has 4MB RAM, which I understand is
not
really recommended for LibreMesh.
Neither of the routers are on the list of devices at
http://chef.libremesh.org/ for LibreMesh, but they are on the list
for
OpenWrt. The most similar device by name on the
LibreMesh list is the
Archer C20i.
If we can LibreMesh-ify the ISPs 840N router in a way that it can
easily
be returned to factory firmware, maybe we will do
that.
If we can LibreMesh-ify the Archer C20 without a high probability of
bricking it, we will do that (we don't have money in the budget for a
replacement this week).
I can use lime-sdk cooker instead of Chef -- I have done this before
to
test a new translation file.
Suggestions on how to proceed?
Here's the C20v4 data:
https://openwrt.org/toh/hwdata/tp-link/tp-link_archer_c20_ac750_v4
Supported Current Rel: snapshot
Unsupported Functions: WiFi 5GHz
Target: ramips
Subtarget: mt76x8
Package architecture: mipsel_24kc
Bootloader: U-Boot
CPU: MediaTek MT7628AN
8 MB flash, 64 MB RAM
Compare to C20i:
https://openwrt.org/toh/hwdata/tp-link/tp-link_archer_c20i_ac750_v1
Supported Current Rel: 17.01.4
Unsupported Functions: WiFi 5GHz
Target: ramips
Subtarget: mt7620
Package architecture: mipsel_24kc
Bootloader: U-Boot
CPU: MediaTek MT7620A
8 MB flash, 64 MB RAM
TL-WR840N v5 (ES) -- belongs to the ISP
https://wikidevi.com/wiki/TP-LINK_TL-WR840N_v5
CPU1: MediaTek MT7628N (575 MHz)
FLA1: 4 MiB (GigaDevice GD25Q32B)
RAM1: 64 MiB (ESMT M14D5121632A)
~ Pato
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