onewireio – Low-level bit primitives for Maxim (formerly Dallas Semi) one-wire protocol.

Protocol definition is here: https://www.analog.com/en/technical-articles/1wire-communication-through-software.html

Available on these boards
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class onewireio.OneWire(pin: microcontroller.Pin)

Create a OneWire object associated with the given pin.

The object implements the lowest level timing-sensitive bits of the protocol.

Parameters:

pin (Pin) – Pin connected to the OneWire bus

Read a short series of pulses:

import onewireio
import board

onewire = onewireio.OneWire(board.D7)
onewire.reset()
onewire.write_bit(True)
onewire.write_bit(False)
print(onewire.read_bit())
deinit() None

Deinitialize the OneWire bus and release any hardware resources for reuse.

__enter__() OneWire

No-op used by Context Managers.

__exit__() None

Automatically deinitializes the hardware when exiting a context. See Lifetime and ContextManagers for more info.

reset() bool

Reset the OneWire bus and read presence

Returns:

False when at least one device is present

Return type:

bool

read_bit() bool

Read in a bit

Returns:

bit state read

Return type:

bool

write_bit(value: bool) None

Write out a bit based on value.