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Hacking the Girltech IM-ME USB Wireless device

~2 min read
Tagged: im-me hacking linux usb repurposing network

The Girltech IM-ME is a basic usb radio transmiter paired with a small console like device. It was suggested to me on the TP hacking thread I posted up a while ago. Hacking the IM-ME turned out to be an easy reverse-engineer, as there is no crypto to worry about and everything is sent in cleartext hex (everything). For 12$, this makes quite a nice little wireless console device. Read on for the protocol and info on implementing your own driver After ordering the IM-ME as a filler item on Amazon (what won’t I do for super-saver shipping), I plugged it in to my linux box. It was recognized as a standard HID device. This is good, as Girltech obviously didn’t go to any great lengths to protect the communication coming off this thing. At this point, I could have either loaded up a windows VM with a promiscuous USB driver at the host OS level, or loaded up a windows VM with snoopypro installed. I went (as I usually do when reverse-engineering usb protocols) with snoopypro. The output driver strings are quite easy to read and patterns are colored by communication direction.

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OpenMSX on the Z2 - 100% perfect

~1 min read
Tagged: zipit-z2 zipit z2 emulation games linux

Busy busy as always, but still trying new packages as they catch my eye. Not that anyone is surprised at what the Z2 can do after seeing Full Throttle running, but for the MSX lovers out there openMSX runs at 100% speed with sound etc etc. Just apt-get install openmsx, and run it once with a rom. Exit out, then edit the ~/.openMSX/share/settings.xml and set your scale factor to one. I found a sample config file on the net here that worked well. That will set the output to 320×240, looks and runs great.

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Hacking the Trivial Pursuit - Digial Choice Edition - pt 1 -

~7 min read
Tagged: hacking linux repurposing usb games encryption

I acquired the Trivial Pursuit – Digital Choice Edition game at a local target for 10$. It’s an interesting little device, with an b&w LCD display, usb out, 16mb internal storage, and the ability to download or create your own questions… on windows only (ouch).. Turns out it’s an interesting device. Here’s what I’ve been able to find out so far.

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Z2 gaming and system update - GBA, GB/GBC, ScummVM (Sam and Max/Full Throttle Full Talkie), auto-login to Fluxbox on boot

~1 min read
Tagged: zipit-z2 zipit z2 emulation games gba linux video

So now that the Z2 is running debian and everything is working, it’s really easy to install new programs and emulators. They are even automatically added to the fluxbox right-click mouse menu. I haven’t changed or recompiled a single C file this time, this is fully “general public” ready! Here’s what I’ve been playing with this weekend.

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