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Digging a bit deeper, yes: http://www.pjrc.com/teensy/loader_cli.html http://www.pjrc.com/teensy/loader_cli.html Has the source to a command line downloader (

Digging a bit deeper, yes: http://www.pjrc.com/teensy/loader_cli.html http://www.pjrc.com/teensy/loader_cli.html Has the source to a command line downloader (GPL)