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1-wire bus master

1-wire bus master

This device is based on DS2480B, UART to 1-wire bus master converter. Device is fully compatible with a lot of software written for DS2480B (such as OWFS).

Key features

  • all advantages of DS2480B (slew rate control, active pullup, hardware acceleration)
  • full galvanic isolation of host side from 1-wire bus (UART as well as power supply)
  • compatible with 5V and 3.3V UART TTL logic (Raspberry Pi ready)
  • few connector types supported

Schematic

schematic

Linux driver

Device is compatible with ser1wm (Serial 1-wire bus master driver for Linux). Use this command to attach driver to serial line to which 1-wire bus master is connected:

# ser1wm_attach /dev/ttyUSB0