pylabrobot.liquid_handling.backends.hamilton.STAR_backend.STAR.iswap_rotation_drive_request_angle

async STAR.iswap_rotation_drive_request_angle() → float

Query the iSWAP rotation drive angle in degrees (signed, 0 deg = calibrated FRONT).

See _iswap_rotation_drive_increments_to_angle for the conversion. On a calibrated STAR the FRONT stop can sit ~+/-300 incr (~1 deg) off the Hamilton-default zero.

Raises:

RuntimeError – if setup() has not populated the predefined positions.

Return type:

float