GitHub - Optiboot/optiboot: Small and Fast Bootloader for Arduino and other Atmel AVR chipsOptiboot is an easy to install upgrade to the Arduino bootloader within Arduino boards. It provides the following features: Allows larger sketches. Optiboot is only 512 bytes, freeing 1.5k of extra code space compared to older bootloaders. Makes your sketches upload faster. Optiboot operates at higher baud rates and has streamlined programming. Adaboot performance improvements. Optiboot implements
