And an-other one has gone
That does not make sense, whenever it receive higher voltage like 12v/24v its just gone, i bought these for about $12 each and its too expensive in that sense that it will protect once only.
I need 250,000 speed on serial, is it possible that rather than using USB to Serial with isolator, can I use some IC RS232 for voltage level conversion? for example
USB to Serial -> RS232 voltage level convertor -> Arduino -> RAMPS
This way, if higher voltage reach Arduino it will not destroy USB
Did anyone use Adafruit USB isolator, does it works good or anybody have any different brand?
Is there some other work around like using opto ICs to isolate?