110 lines
3.5 KiB
Python
110 lines
3.5 KiB
Python
"""
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Example: how to embed laser_control into any Python application.
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Run:
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python3 laser_control/example_usage.py
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"""
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import sys
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import time
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from laser_control import (
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LaserController,
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VariationType,
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ValidationError,
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CommunicationError,
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)
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def example_manual_mode(port: str = None):
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"""Manual mode: set fixed temperatures and currents."""
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with LaserController(port=port) as ctrl:
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try:
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ctrl.set_manual_mode(
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temp1=25.0,
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temp2=30.0,
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current1=40.0,
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current2=35.0,
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)
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print("Manual parameters sent.")
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data = ctrl.get_measurements()
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if data:
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print(f" Temp1: {data.temp1:.2f} °C")
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print(f" Temp2: {data.temp2:.2f} °C")
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print(f" I1: {data.current1:.3f} mA")
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print(f" I2: {data.current2:.3f} mA")
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print(f" 3.3V: {data.voltage_3v3:.3f} V")
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print(f" 5V: {data.voltage_5v1:.3f} V")
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print(f" 7V: {data.voltage_7v0:.3f} V")
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except ValidationError as e:
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print(f"Parameter validation error: {e}")
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except CommunicationError as e:
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print(f"Communication error: {e}")
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def example_variation_mode(port: str = None):
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"""Variation mode: sweep current of laser 1."""
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collected = []
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def on_measurement(m):
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collected.append(m)
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print(f" t={m.timestamp.isoformat(timespec='milliseconds')} "
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f"I1={m.current1:.3f} mA T1={m.temp1:.2f} °C")
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with LaserController(port=port, on_data=on_measurement) as ctrl:
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try:
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ctrl.start_variation(
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variation_type=VariationType.CHANGE_CURRENT_LD1,
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params={
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'min_value': 20.0, # mA
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'max_value': 50.0, # mA
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'step': 0.5, # mA
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'time_step': 50, # µs
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'delay_time': 5, # ms
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'static_temp1': 25.0,
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'static_temp2': 30.0,
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'static_current1': 35.0,
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'static_current2': 35.0,
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}
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)
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print("Variation task started. Collecting data for 2 s...")
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deadline = time.monotonic() + 2.0
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while time.monotonic() < deadline:
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ctrl.get_measurements()
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time.sleep(0.15)
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ctrl.stop_task()
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print(f"Done. Collected {len(collected)} measurements.")
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except ValidationError as e:
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print(f"Parameter validation error: {e}")
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except CommunicationError as e:
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print(f"Communication error: {e}")
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def example_embed_in_app():
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"""
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Minimal embedding pattern for use inside another application.
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The controller can be created once and kept alive for the lifetime
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of the host application. No GUI dependency whatsoever.
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"""
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ctrl = LaserController(port=None) # auto-detect port
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try:
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ctrl.connect()
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except CommunicationError as e:
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print(f"Cannot connect: {e}")
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return ctrl
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return ctrl # caller owns the controller; call ctrl.disconnect() when done
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if __name__ == '__main__':
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port = sys.argv[1] if len(sys.argv) > 1 else None
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print("=== Manual mode example ===")
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example_manual_mode(port)
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print("\n=== Variation mode example ===")
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example_variation_mode(port) |