Ive seen many discussions on this issue but not many solid resolves. I have several new DSWY_Robot Pro Mini 328P clones which I cannot load a sketch to, nor flash a bootloader, etc. My config to try to communicate with these is by using a Sainsmart Mega 2560 which works great loaded with the Arduin…

Mega328P ISP Programming via Mega2560 - Invalid Device Signature

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