I’m frequently using 6-pin ISP for programming on a breadboard and don’t actually have the pin-header on the target. This allows me to look at the bottom of the board and the bottom of the IDC ...

There are three types of AVR-based boards you may end up working with Basic - No bootloader, just the chip, any supporting components to provide extra functionality, and (hopefully) a convenient ...

This is slightly different from ISP programming. ... JTAG or SPI Flashing in a my 8-pin header. I don’t use their SPI FLASH emulation, but I can see that useful for production.

There are three types of AVR-based boards you may end up working with Basic - No bootloader, just the chip, any supporting components to provide extra functionality, and (hopefully) a convenient ...