Joystick shield for Arduino MAME controller

Tue, Apr 27 2010: Filed under Projects

Posted by Jonathan Oxer

I have a Google Alert set on the term "Practical Arduino", and it often finds me very cool things that people have done using projects described in the book. One of those tidbits was this: batchpcb.com/index.php/Products/31584

I don't know anything much about it other than what's shown on that page, but from what I can deduce it's the circuit from the Virtual USB Keyboard project converted into a nice PCB with a bunch of buttons included for controlling games running under the arcade machine emulator MAME. I love seeing stuff like this, so if you've created anything based on things you've learnt from Practical Arduino please send me an email and tell me all about it! 



Weather Station Receiver project modified for La Crosse TX4U

Fri, Apr 9 2010: Filed under Projects

Posted by Jonathan Oxer

When whittling down the list of projects for Practical Arduino I never expected the Weather Station Receiver project to be one that gained so much attention. To be honest I was dubious about whether enough people would build it to justify its inclusion, but felt that even if it wasn't built very often it was still worthwhile as an example of how to do signal timing analysis and bitstream decoding. I'm glad we put it in, because it seems to be one of the more popular projects!

Reader Kelsey Jordahl contacted me yesterday with details of a modified version that reads data from a La Crosse TX4U system, using the circuit from Practical Arduino but with modified software to deal with the different data format.

Kelsey's system logs the data and generates nice-looking graphs that are displayed online. For more information (including the modified source code) check out:

mysite.verizon.net/kajordahl/weather.html mysite.verizon.net/kajordahl/weather/weather.html

Oh yeah, and this is probably a good time to mention that Freetronics is now stocking fully pre-assembled Arduino shields for the Weather Station Receiver project. The very first one was sold and shipped to a reader in Queensland, Australia, yesterday morning.

The shield implements exactly the same circuit as shown in Practical Arduino, but with a dedicated PCB design rather than using a protoshield. There's more info on the 433MHz Receiver Shield for Arduino page at the Freetronics site. 



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