1/ Is this chip programmable at 3.3v? Can't see why not, but I may be wrong
2/ Does it need the external crystal (8Mhz) attached, or should it upload without it?
cannot get it to upload with the USBasp (Processor set to ATMega328p, 3.3v. 8Mhz - upload using programmer).
3/ What am I missing? Clearly something
Is there any way I could take the RX/TX pins of my ATMega328p and fire them through a spare UNO RX/TX and obtain the data that way?