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@Optiboot

Optiboot AVR Bootloader

A small bootloader for several AVR Microcontrollers, used by Arduino

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  1. optiboot optiboot Public

    Small and Fast Bootloader for Arduino and other Atmel AVR chips

    C++ 1.2k 416

  2. Toolchains Toolchains Public

    Minimalist avr-gcc toolchains for compiling Optiboot

    2

  3. optiboot-mini optiboot-mini Public

    Smaller optiboot written in assembler; includes eeprom and real fuse support. Fewer target chips.

  4. Optiboot_x Optiboot_x Public

    Optiboot_x, moved here from Optiboo/optiboot. For 4809, "xtiny", and other "new architeture" AVRs

  5. C_urboot C_urboot Public

    urboot bootloader protocol implementation in C.

Repositories

Showing 5 of 5 repositories
  • C_urboot Public

    urboot bootloader protocol implementation in C.

    Optiboot/C_urboot's past year of commit activity
    0 0 0 0 Updated Nov 5, 2026
  • Optiboot_x Public

    Optiboot_x, moved here from Optiboo/optiboot. For 4809, "xtiny", and other "new architeture" AVRs

    Optiboot/Optiboot_x's past year of commit activity
    0 0 0 0 Updated Nov 5, 2026
  • optiboot-mini Public

    Smaller optiboot written in assembler; includes eeprom and real fuse support. Fewer target chips.

    Optiboot/optiboot-mini's past year of commit activity
    0 0 0 0 Updated Nov 3, 2026
  • optiboot Public

    Small and Fast Bootloader for Arduino and other Atmel AVR chips

    Optiboot/optiboot's past year of commit activity
    C++ 1,184 416 55 (1 issue needs help) 8 Updated Feb 15, 2026
  • Toolchains Public

    Minimalist avr-gcc toolchains for compiling Optiboot

    Optiboot/Toolchains's past year of commit activity
    2 0 0 0 Updated Jun 4, 2025

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