Out of bound memory

[Duccan]

In DMXUSB.cpp line 93, you are writing to your buffer out of range. When _index is zero, your writing to _buffer at index (unsigned int) 0 - (unsigned int) 1 which equals to a max value of unsigned int 65535 (depends on target). If you want to omit the first bit, build a check for it to skip it.

[DaAwesomeP]

Hi @Duccan,
I'm surprised I didn't catch this myself! If you'd like to submit a pull and can test it on your own hardware, that is very welcome. I can try to release a fix in the next week or so.