1-Wire adapters

USB

• DS9490

  
  
  • Based on the DS2490 chip.
    
  • USB 1.1
    
  • Powered off the USB bus.
  • Similar signal properties to the DS9097.
    
  • Accelerated search and communication. Fastest of  the adapters.
    
  • Uses the libusb library to talk to the USB subsystem. Should be available on BSD as well as Linux.
  • Several versions that differ in software by presence of
    
    1. No ID chip
    2. ID chip with 01 family
    3. ID chip with 81 family
       

• PuceBaboon USB adapter

  
  
  • Based on the DS2490 chip.
  • Handled identically to the DS9490 chip.
  • Labelled with ID. See naming.
    
  • Two version:
    
    1. USB Temperature sensor stand-alone (No ID, DS18S20 (Family code 10).
    2. USB Adapter with RJ45 connector. ID chip (Family code 01). Temperature sensor must be external.

Serial

• Passive 25-pin (DS9097)

  
  • Basically a raw serial port with some pullups and protective diodes.
  • Exists as hardware from Dallas, or can be easily constructed (see diagram above).
    
  • Example circuit by Bart Jansen
  • Synthesized 1-wire bus waveform using 115k baud communication
  • Bit-banging technique is slowest and costs high CPU usage.
    
  
  

• Passive 9-pin (DS9097)

  
  • Rework of the 25-pin passive circuit by Michael Ryan.
  
  

• DS9097U

  
  
  • Connects to (and powered by) standard serial port (9600baud)
  • Based on the DS2480B.
  • Accelerated search and byte-wide bus communication.
  • Uses standard POSIX system calls.
    

• LINK
  

  
  
  • Connects to (and powered by) standard serial port.
  • PIC processor internally with 1-wire master firmware.
  • Emmulates the DS9097U faithfully.
    
  • Better 1-wire bus waveform control.
  • Several form factors available (PCB board, RJ11, RJ45, multiport).
  • Simple ascii protocol also supported.
  
  

Embedded

Parallel (pending)

• DS1410E
  
  
  
  • Connects to the parallel (printer) port.
  • Based on the DS1481.
    
  • Not currently supported.