Hi guys, so I bought a Nova Board, http://www.dfrobot.com/index.php?route=product/product&product_id=1003 which is essentially a leonardo board but much smaller, although mostly everything is the exact same. So before I was using it to obtain accelerometer values (on board accelerometer) and save it to an EEPROM. Now that was working great, so I turned off my comp and a few hours later I tried it again and it kept saying “USB Device unrecognized” after unplugging it and plugging it back in like 10 times it started working perfectly again.
I then reinstalled my sketch and logged that data with my battery (which is also part of the board) until the battery sort of ran out and then I placed it back on my computer to read my data from the EEPROM. After reading all the data I re uploaded my logging sketch and now its back to “USB Device Unrecognized” and I can’t think of any reason of why this has happened :(. I’ve only used basic arduino code, TWI for the EEPROM and the timer libraries. The only thing I can think of is I may have used the narcoleptic http://code.google.com/p/narcoleptic/ library the second time although I’m not 100 percent sure whether I did or not and I know I didn’t use it the first time I had this problem so I’m not too sure if it has anything to do with it.
I read one case online where someone had to reinstall the leonardo boot loader after having the same problem, although he didn’t know why, but he said it worked fine from then onwards. Do you think thats a good idea? Or would there be another reason this has happened?