Descritption of deather Watch V4 Bad USB

[D-G-L]

Could you leave a detailed description of how to program the Bad USB Part of theDeather watch V4?
How do I bring scripts to that part of the watch? I suppose you have to connect to the BAS USB Com Port, but then? Which parameters set to the Arduino IDE (nothing seems to work, USB allway shut down). Where is the demo script that was originally flashed, how to bring it to the watch?
tks

[Fattcat]

Daaamn. This could be so good if he did it for us.
And will increase usage of his product.