Computing stuff tied to the physical world

JeeMon goes embedded

In Hardware, Software on Mar 5, 2010 at 00:01

Testing out a new setup … I started by launching the JeeMon runtime executable as follows:

Screen shot 2010-03-02 at 15.41.09.png

Then I went back to my Mac and opened a browser window:

Screen shot 2010-03-02 at 15.56.12.png

It works! You’re looking at a little web server running on a tiny Technologic TS-7500 board:


ARM based, 64 Mb RAM, µSD card socket on board, running Debian (lenny). It’s not very high powered, but in return it only uses 400 mA @ 5V, i.e. it can run off USB power.

I haven’t yet figured out how to get the FTDI USB serial driver on there, but once that’s solved this little unit will be able to act as host for USB-connected JeeNodes or JeeLinks.

The RAM and storage is more than sufficient to run even a very elaborate JeeMon setup, I expect.

This might be an interesting low-end always-on home sensor & automation system!

  1. Why didn’t you continue using the propox MMnet1001?

    • I intend to. But building TclKit for the MMnet1001 was fairly tricky, and I’ve switched to the new 8.6 version of Tclkits for the new JeeMon design (i.e. pick the latest major revision now, so I can stick with it for a long time). I don’t have the runtime built yet. When I do, MMnet1001 will be just as good an option as any other – probably the lowest cost one, in fact.

  2. Did you see the Mini2440 (arm9-based) board? Small form factor, it can also run Windows, so FTDI drivers will be easy to install.

  3. Both the new (G20) and old FoxBoard ( have FTDI and expansion. I’m using it right now with a JeeLink.

  4. Lots of options, clearly. I’ve started a list on the wiki –

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