You ever considered adding OpenTherm support? I'm in the process of making something similar!
I've redone my blog http://www.arduinoblogger.co.uk. Going to start updating it with more projects and post them here too!
yes you could use USB. You would need to parse the commands via the serial interface instead.
Glad you found it useful!
Glad its working :)
Glad you liked it and glad its working!
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