OpenWrt Turns a $14 Card Reader Into the Smallest Wireless AP (livejournal.com)
An anonymous reader writes: The Zsun Wifi card reader is a tiny micro SD card reader with WiFi connectivity. While people managed to access the device's serial console a few months ago, the plan was to eventually run OpenWrt since it's based on the popular Atheros AR9331 WiSoC combined with 64MB RAM and 16MB SPI Flash. A team of Polish hackers have managed this feat, and have now posted instructions to install OpenWrt, as well as other documentation: for example, a description of the board's GPIOs.
The link for the instructions are: https://wiki.hackerspace.pl/pr... The link in the summary is just blogspam.
Why would you need to be a hardware-hacker to use these? You can just use telnet or any of the other vulnerabilities they found to access the device's internals via software and proceed from there to install OpenWRT-proper.
ESP8266 is a great device, but serves completely different needs. It can't act as a wireless repeater/bridge, for example -- it's not a router. Also, it only has ~80KB RAM and can be run at max 160MHz, whereas this device has a 400MHz AR9331 and 64MB RAM and runs Linux; you are basically comparing apples and oranges here.
The Carambola 2 has the same SoC and runs OpenWrt out of the box.
It's $14 if you buy it via the blog author's dx.com affiliate link. Or slightly less if you switch to one of the other colors; for some reason, he linked to the ugliest, most expensive color.