Initial commit: merge nuescan, pymso, pybbd202, and pypewpewhops into scanengine-3
- Merged four separate hardware control projects into unified platform - Created unified requirements.txt with all dependencies - Added comprehensive .gitignore - Added project overview README Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Thomas Ales [M S E]
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#!/usr/bin/env python3
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"""
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Example usage of the Coherent HOPS Laser control library.
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This script demonstrates how to use the library to control a real laser system.
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"""
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from coherent_hops_laser import CoherentHOPSLaser, DummyLaser, I2CMode
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import time
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def demo_system_info(laser):
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"""Demonstrate system information queries."""
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print("=" * 60)
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print("SYSTEM INFORMATION")
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print("=" * 60)
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info = laser.get_system_info()
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print(f"Hardware ID: {info.hardware_id}")
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print(f"Laser Model: {info.laser_model}")
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print(f"Wavelength: {info.wavelength}")
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print(f"Power Units: {info.power_units}")
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print(f"Head Type: {info.head_type}")
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print(f"Board Revision: {info.head_board_revision}")
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print()
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def demo_temperature_monitoring(laser):
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"""Demonstrate temperature monitoring."""
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print("=" * 60)
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print("TEMPERATURE MONITORING")
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print("=" * 60)
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temps = laser.get_all_temperatures()
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print(f"Main Heatsink: {temps.main:.2f}°C")
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print(f"BRF (Birefringent): {temps.brf:.2f}°C")
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print(f"SHG (2nd Harmonic): {temps.shg:.2f}°C")
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print(f"THG (3rd Harmonic): {temps.thg:.2f}°C")
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print(f"ETA: {temps.eta:.2f}°C")
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print()
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def demo_temperature_control(laser):
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"""Demonstrate temperature setpoint control."""
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print("=" * 60)
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print("TEMPERATURE CONTROL")
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print("=" * 60)
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# Read current setpoints
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print("Current Setpoints:")
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print(f" Main: {laser.get_temperature_setpoint_main():.2f}°C")
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print(f" BRF: {laser.get_temperature_setpoint_brf():.2f}°C")
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print(f" SHG: {laser.get_temperature_setpoint_shg():.2f}°C")
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print()
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# Example: Set a new setpoint (commented out for safety)
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# print("Setting Main temperature setpoint to 26.0°C...")
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# laser.set_temperature_setpoint_main(26.0)
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# print(f" New setpoint: {laser.get_temperature_setpoint_main():.2f}°C")
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print("(Temperature setpoint modification disabled in demo)")
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print()
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def demo_power_control(laser):
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"""Demonstrate power control."""
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print("=" * 60)
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print("POWER CONTROL")
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print("=" * 60)
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units = laser.get_power_units()
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current_power = laser.get_power_command()
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print(f"Current Power: {current_power} {units}")
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power_limits = laser.get_power_limits()
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print(f"Power Limits: {power_limits}")
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power_memory = laser.get_power_memory()
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print(f"Power Memory: {power_memory}")
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print()
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# Example: Set power (commented out for safety)
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# print("Setting power to 100.0 mW...")
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# laser.set_power_command(100.0)
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# print(f" New power: {laser.get_power_command()} {units}")
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print("(Power modification disabled in demo)")
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print()
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def demo_current_control(laser):
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"""Demonstrate current control."""
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print("=" * 60)
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print("CURRENT CONTROL")
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print("=" * 60)
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current = laser.get_current_command()
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print(f"Current Command: {current} A")
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limits = laser.get_current_limits()
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print(f"Current Limits: {limits}")
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mode = laser.get_control_mode()
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print(f"Control Mode: {mode}")
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print()
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def demo_status_monitoring(laser):
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"""Demonstrate status monitoring."""
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print("=" * 60)
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print("STATUS MONITORING")
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print("=" * 60)
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print(f"Key Switch: {laser.get_key_switch_status()}")
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print(f"Fan Status: {laser.get_fan_status()}")
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print(f"Interlock: {laser.get_interlock_status()}")
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print(f"Remote Control: {laser.get_remote_control_status()}")
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print(f"Analog Values: {laser.get_analog_values()}")
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print()
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def demo_configuration(laser):
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"""Demonstrate configuration register access."""
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print("=" * 60)
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print("CONFIGURATION REGISTERS")
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print("=" * 60)
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print(f"Config Register 0: {laser.get_config_register_0()}")
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print(f"Config Register 1: {laser.get_config_register_1()}")
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print(f"Config Register 2: {laser.get_config_register_2()}")
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print(f"Config Register 3: {laser.get_config_register_3()}")
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print()
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def main_dummy_demo():
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"""Run demo with simulated hardware."""
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print("\n" + "=" * 60)
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print("COHERENT HOPS LASER CONTROL - SIMULATION MODE")
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print("=" * 60 + "\n")
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with DummyLaser() as laser:
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demo_system_info(laser)
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demo_temperature_monitoring(laser)
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demo_temperature_control(laser)
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demo_power_control(laser)
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demo_current_control(laser)
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demo_status_monitoring(laser)
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demo_configuration(laser)
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# Demonstrate power control
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print("=" * 60)
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print("POWER CONTROL DEMONSTRATION (Simulation)")
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print("=" * 60)
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print(f"Initial power: {laser.get_power_command()} mW")
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laser.set_power_command(125.0)
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print(f"After setting to 125.0 mW: {laser.get_power_command()} mW")
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print()
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def main_real_hardware():
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"""Run demo with real hardware."""
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print("\n" + "=" * 60)
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print("COHERENT HOPS LASER CONTROL - REAL HARDWARE")
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print("=" * 60 + "\n")
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# Configure for your specific setup
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FTDI_URL = 'ftdi://ftdi:2232/1' # Adjust if needed
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SLAVE_ADDRESS = 0x50 # Default NXP slave address
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I2C_FREQUENCY = I2CMode.STANDARD # or I2CMode.FAST
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try:
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# Connect to laser
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laser = CoherentHOPSLaser(
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slave_address=SLAVE_ADDRESS,
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i2c_mode=I2C_FREQUENCY
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)
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print(f"Connecting to FTDI device at {FTDI_URL}...")
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laser.connect(FTDI_URL)
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print("Connected successfully!\n")
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# Run demos
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demo_system_info(laser)
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demo_temperature_monitoring(laser)
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demo_status_monitoring(laser)
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demo_power_control(laser)
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demo_current_control(laser)
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# Clean disconnect
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laser.disconnect()
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print("Disconnected successfully.")
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except Exception as e:
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print(f"Error: {e}")
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print("\nTroubleshooting:")
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print("1. Check FTDI device is connected (lsusb | grep FTDI)")
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print("2. Verify user permissions (add user to 'dialout' or 'plugdev' group)")
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print("3. Check FTDI URL matches your device")
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print("4. Try: sudo python3 example_usage.py (not recommended long-term)")
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def continuous_monitoring_example():
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"""Example of continuous temperature and power monitoring."""
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print("\n" + "=" * 60)
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print("CONTINUOUS MONITORING EXAMPLE")
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print("=" * 60 + "\n")
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with DummyLaser() as laser:
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print("Monitoring laser parameters (5 iterations)...")
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print("Press Ctrl+C to stop\n")
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try:
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for i in range(5):
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temps = laser.get_all_temperatures()
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power = laser.get_power_command()
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mode = laser.get_control_mode()
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print(f"[{i+1}] T_main={temps.main:.1f}°C "
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f"T_shg={temps.shg:.1f}°C "
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f"Power={power:.1f}mW "
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f"Mode={mode}")
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time.sleep(1)
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except KeyboardInterrupt:
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print("\nMonitoring stopped.")
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if __name__ == '__main__':
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import sys
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print("Coherent HOPS Laser Control - Example Usage\n")
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print("Available demos:")
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print(" 1. Simulation mode (no hardware required)")
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print(" 2. Real hardware mode")
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print(" 3. Continuous monitoring example")
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print()
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if len(sys.argv) > 1:
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choice = sys.argv[1]
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else:
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choice = input("Select demo (1/2/3) [default: 1]: ").strip() or "1"
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if choice == "1":
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main_dummy_demo()
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print("\nContinuous monitoring demo:")
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continuous_monitoring_example()
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elif choice == "2":
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main_real_hardware()
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elif choice == "3":
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continuous_monitoring_example()
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else:
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print("Invalid choice. Use 1, 2, or 3.")
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sys.exit(1)
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print("\n" + "=" * 60)
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print("Demo complete!")
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print("=" * 60)
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