Tag Archives: wireless hacks

Cheap WiFi Devices are Hardware Hacker Gold

via hardware – Hackaday

Cheap consumer WiFi devices are great for at least three reasons. First, they almost all run an embedded Linux distribution. Second, they’re cheap. If you’re going to break a couple devices in the process of breaking into the things, it’s nice to be able to do so without financial fears. And third, they’re often produced on such low margins that security is an expense that the manufacturers just can’t stomach — meaning they’re often trivially easy to get into.

Case in point: [q3k] sent in this hack of a tiny WiFi-enabled SD card reader device that he and his compatriots [emeryth] and [informatic] worked out with the help of some early work by [Benjamin Henrion]. The device in question is USB bus-powered, and sports an SD card reader and an AR9331 WiFi SOC inside. It’s intended to supply wireless SD card support to a cell phone that doesn’t have enough on-board storage.

The hack begins with [Benajmin] finding a telnet prompt on port 11880 and simply logging in as root, with the same password that’s used across all Zsun devices: zsun1188. It’s like they want to you get in. (If you speak Chinese, you’ll recognize the numbers as being a sound-alike for “want to get rich”. So we’ve got the company name and a cliché pun. This is basically the Chinese equivalent of “password1234”.) Along the way, [Benjamin] also notes that the device executes arbitrary code typed into its web interface. Configure it to use the ESSID “reboot”, for instance, and the device reboots. Oh my!

zsun_gpio_bootstrap_annotFrom here [q3k] and co. took over and ported OpenWRT to the device and documented where its serial port and GPIOs are broken out on the physical board. But that’s not all. They’ve also documented how and where to attach a wired Ethernet adapter, should you want to put this thing on a non-wireless network, or use it as a bridge, or whatever. In short, it’s a tiny WiFi router and Linux box in a package that’s about the size of a (Euro coin | US quarter) and costs less than a good dinner out. Just add USB power and you’re good to go.

Nice hack!


Filed under: hardware, wireless hacks

Help Needed: No-Soldering ESP8266 IFTTT Button

via Hackaday » hardware

We all love to see amazing hacks in their finished state and be dazzled by what our peers can do. But that’s just the summit of the hacker’s Everest. We all know that the real work is in getting there. Hackaday.io user [stopsendingmejunk] is working on an ESP8266-based IFTTT Button based on a simple breakout board so that anyone could rebuild it without having to do any soldering, and he’s looking for collaboration.

[stopsendingmejunk]’s project takes off from this similar project on different hardware. The board he’s chosen to use is the EZSBC ESP8266-07 breakout, which should have everything he needs, including an on-board button. It should be an easy enough job, but he’s having trouble getting the thing to stay asleep until the button is pressed.

We’ve seen more than a few hacks of the Amazon Dash button, but aside from hacking for hacking’s sake, we’re also happy to see a ground-up open redesign. Besides, this looks like it’ll be a great introductory project, requiring little fiddling around. With a little help. The code is up here on GitHub. Anyone game?


Filed under: hardware, wireless hacks