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Porting OpenWRT to a board with a supported SoC
Intro
Recently, some network devices caught my attention both on Aliexpress and Alibaba. Specifically, I found some interesting outdoor equipment for a very low price, ranging between 10-25$.
https://it.aliexpress.com/item/32964460654.html https://it.aliexpress.com/item/4000091742124.html https://www.alibaba.com/product-detail/AR9331-long-range-wifi-192-168_62106638650.html
These are 2.4ghz AR9330 based boards, powered via POE (although on a non standard voltage), with two 10/100/1000 ethernet ports, an integrated antenna and a waterproof enclosure. I received the first one from Aliexpress but i plan to get some other to test as well.
Pictures
PCB
From the PCB picture it is clear that the board has an easily accessible serial header and that it has an SOIC8 flash chip (Winbond 25Q64).