Simulated acquisition

Introduced in: rtd-acquire 0.1.0a1

Use SimulatedAcquisitionDevice when you want deterministic behavior through the same AcquisitionDevice contract your application uses for real hardware.

from rtd_acquire import Measurement
from rtd_acquire.simulation import SimulatedAcquisitionDevice

simulated = SimulatedAcquisitionDevice(
    [
        Measurement(resistance_ohms=100.0),
        Measurement(
            resistance_ohms=101.0,
            standard_uncertainty_ohms=0.02,
        ),
    ],
    repeat=True,
)

Each call to read() consumes one scripted entry. With repeat=True, the whole script loops; otherwise reading past the end raises AcquisitionError.

Script an operation failure

from rtd_acquire.simulation import SimulatedAcquisitionFailure

simulated = SimulatedAcquisitionDevice(
    [SimulatedAcquisitionFailure("simulated bus failure")]
)

That entry raises AcquisitionError, which is different from returning a fault-status Measurement.

What it does not model

The generic simulator does not know about MAX31865 registers, RTD temperature, lead resistance, analog settling, or noise. Supply the measurement behavior your application test needs explicitly.