µBoot 2.1 KB USB bootloader for the ATtiny85

Posted on Wednesday, September 26th, 2012 in AVR, code by DP

Bluebie is developing µBoot, a tiny USB bootloader that only consumes 2.1 Kilobytes of flash on an ATtiny85. It’s based on USBaspLoader-tiny85 bootloader but loses ~0.7KB by customizing it’s functionality.

µBoot is a tiny bootloader for attiny85 chips. Weighing in at just under 2.1kb it leaves more free space to uploaded programs than any other usb bootloader I know of. I made it over this past weekend and it’s coming along quite nicely, already useful for some types of projects.

Via the forum.

This entry was posted on Wednesday, September 26th, 2012 at 9:00 pm and is filed under AVR, code. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

3 Responses to “µBoot 2.1 KB USB bootloader for the ATtiny85”

  1. Jenna Fox says:

    Renamed it to micronucleus to avoid confusion with an ARM bootloader of the same name. is the new github address. I setup another with the old name instructing people how to get to the new repo.

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