I2C to OneWire Bridge for connecting a DS1821 temperature sensor to the I2C bus. The bridge runs on an AVR ATiny45 microcontroller. You need a BASCOM AVR Compiler plus the USI I2C Slave library from MCS Electronics http://www.mcselec.com/ in order to compile the source code. The binary for flashing the AVR controller is available also as HEX file in this repository.
You can use the source code for free in your personal projects. The source is licensend for non-commercial use only.