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USB → 1 Wire adapter on Atmega8

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Vermes

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It is a simple USB → 1 Wire adapter based on Atmega8 microcontroller. USB support was implemented using V-USB driver from Objective Development. Converter was made after reading documentation of DS2490 chip, that is why some of the constructions and way of sending/receiving data may look similar to solutions used in the processor.
The whole cooperates with digitemp in version 3.5.0 patched.
A few words about the annexes (attached in the original thread):
  • wirereader-1.02.2.tar.gz contains the device's firmware (with the amended PCB model)
  • digitemp_wirereader_ebuild.tar.gz contains an ebuild for Gentoo Linux users
  • digitemp-3.5.0-wirereader_support.patch.gz contains a patch for digitemp
  • wirereader_schem.pdf schematic diagram of the adapter
  • wirereader_pcb.pdf scheme of the board



Link to original thread (useful attachment) – Przejściówka USB->1 Wire na ATmega8
 

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