1-Wire - Frame Format

Output Frame Format

Frame Type: "reset"

Property

Type

Description

  • Reset pulse

Frame Type: "presence"

Property

Type

Description

  • Presence Pulse

Frame Type: "rom_command"

Property

Type

Description

description

str

read, skip, search, or match

rom_command

bytes

The command byte

  • ROM command. This is the first command issued by the master after a presence pulse

Frame Type: "crc"

Property

Type

Description

crc

bytes

The CRC byte

  • 8 bit CRC, last part of the 64 bit identifier

Frame Type: "family_code"

Property

Type

Description

family

bytes

The family code, which is the first part of the 64 bit identifier

  • The family code of the device ID

Frame Type: "id"

Property

Type

Description

id

int

48 bit integer, taken from the center of the 64 bit identifier

  • The 48 bit device identifier

Frame Type: "data"

Property

Type

Description

data

bytes

A single data byte

  • Data byte after the ROM command and identifier

Frame Type: "invalid_rom_command"

Property

Type

Description

rom_command

bytes

The ROM command byte

  • Unknown ROM command

Frame Type: "alarm"

Property

Type

Description

rom_command

bytes

The command byte

  • Alarm search command

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