When you flash the chip using arduino as ISP you remove the bootloader from the target chip. Thus, if you want to flash the target board again using its on board USB-to-Serial chip, you will need to ...

This shield / carrier board, once assembled, turns your Arduino Nano, Arduino Pro Mini, or Arduino Pro Micro into an AVR ISP programmer. The ISCP socket is wired to work directly with the ArduinoISP ...

The tutorial is fairly straightforward, and even demonstrates how the Arduino can be used as an ISP for the ATtiny, removing the need to purchase a standalone programmer.

Arduino Nano with ATmega328P is available in two variants: "ATmega328P" and the older "ATmega328P (Old Bootloader)". The newer variant uses an optimized bootloader which has double upload transfer ...

Arduino Nano with ATmega328P is available in two variants: "ATmega328P" and the older "ATmega328P (Old Bootloader)". The newer variant uses an optimized bootloader which has double upload transfer ...