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V-USB Library based project - Send a string to your ATtiny85 via USB, press a button and have it typed back via HID Keyboard
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Password-Keychain (ATtiny85 based)

V-USB Library based project, heavily based on EasyLogger.

You can send a string to your ATtiny85 via USB, press a button and have the string typed back to your computer via HID Keyboard.

It uses HID Keyboard V-USB, your ATtiny85 will be recognized as a keyboard.

What is V-USB?

V-USB is a software-only implementation of a low-speed USB device for Atmel’s AVR® microcontrollers, making it possible to build USB hardware with almost any AVR® microcontroller, not requiring any additional chip.

More information about V-USB can be found at:

Source: []

HW Board

Rev: A

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Flash Utility Installation

Mac OS X (Note! Brew must be installed!
brew install libusb && brew install libusb-compat
sudo echo "/usr/local/lib" >> "/etc/"
gcc -o flash flash.c -lusb

Check out my code!

To clone this repo, just:
git clone


This project is released under GNU GPLv3

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