Good stuff, strohhalm. 
I'm hoping to implement a similar datalogger solution for a GPS and OBD2 (in-car diagnostics and stats). It'll be a while before I can get my head around what you've done, but this looks like a great start.
Good stuff, strohhalm. I'm hoping to implement a similar datalogger solution for a GPS and OBD2 (in-car diagnostics and stats). It'll be a while before I can get my head around what you've done, but this looks like a great start.