Note

Ophyd async is included on a provisional basis until the v1.0 release and may change API on minor release numbers before then

ophyd_async.core

Functions

observe_value	Subscribe to the value of a signal so it can be iterated from.
set_and_wait_for_value	Set a signal and monitor it until it has that value.
set_sim_callback	Monitor the value of a signal that is in sim mode
set_sim_put_proceeds	Allow or block a put with wait=True from proceeding
set_sim_value	Set the value of a signal that is in sim mode.
wait_for_value	Wait for a signal to have a matching value.
get_dtype	Get the runtime dtype from a numpy ndarray type annotation
get_unique	If all values are the same, return that value, otherwise return TypeError
merge_gathered_dicts	Merge dictionaries produced by a sequence of coroutines.
wait_for_connection	Call many underlying signals, accumulating NotConnected exceptions

Classes

SignalBackend	A read/write/monitor backend for a Signals
SimSignalBackend	An simulated backend to a Signal, created with Signal.connect(sim=True)
Signal	A Device with the concept of a value, with R, RW, W and X flavours
SignalR	Signal that can be read from and monitored
SignalW	Signal that can be set
SignalRW	Signal that can be both read and set
SignalX	Signal that puts the default value
Device	Common base class for all Ophyd Async Devices.
DeviceCollector	Collector of top level Device instances to be used as a context manager
DeviceVector
StandardReadable	Device that owns its children and provides useful default behavior.
AsyncStatus	Convert asyncio awaitable to bluesky Status interface

Exceptions

NotConnected

Exception to be raised if a Device.connect is cancelled