Upon boot, the bootloader expects a 'p' via the UART. When this char is not sent after a small amount of time, the boot process continues. When the device is in flash mode, the system expects a Intel ...

This project showcases a custom-designed PCB that acts as an attachment board (shield) for the Arduino Uno. The board simplifies the process of bootloading ATmega328P microcontrollers by providing an ...

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 ...