I bought Arduino pro micro from amazon , it didn't say if it did have the Bootloader ready or not ...
i hooked the pro micro to the Computer , the computer didn't recognize any new usbs and it didn't recognize it as a usb (Simply nothing showed up when i connected the pro micro...)
only the power LED was on
does it mean i don't i have a bootloader on the pro micro ?
So i wanted to ask :
what is a bootloader and why do i need it ?
what is an AVR programmer?
how to get a bootloader on the pro micro ? (Without AVR...)
thanks 