sdeux 2026.1.0

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By: chiesa Date: March 31, 2020 Copyright Alpes Lasers SA, Neuchatel, Switzerland

Driver for the Alpes Lasers S-2 pulser. Visit https://www.alpeslasers.ch/ for more informations.

Usage

See also the examples folder in the sdeux package.

import os

from sdeux.auto_detect import init_driver
from sdeux.communication import RETRY_NO, RETRY_SOME
from sdeux.serial_handler import S2SerialHandler

th = None

port = os.path.expanduser('~/tty.AL-S2')

retry_policy = RETRY_SOME  # on communication errors, retries up to 3 times until a timeout of 3 seconds

# retry_policy = RETRY_NO   # on communications errors, raise an exception directly


def print_status(s2_instance):
    print_status = 'Measured current (A): {:.5f}\n'.format(s2_instance.measured_current) + \
                   'Measured voltage (V): {:.5f}\n'.format(s2_instance.measured_voltage) + \
                   'Target voltage (V): {:.5f}\n'.format(s2_instance.applied_voltage) + \
                   'Laser temperature (degC): {:.5f}\n'.format(s2_instance._info.laser_temperature) + \
                   'Overcurrent Limit (A): {:.5f}\n'.format(s2_instance.current_limit) + \
                   'MCU temperature (degC): {:.5f}\n'.format(s2_instance._info.MCU_temperature) + \
                   'Pulse Mode: {}\n'.format(s2_instance.pulsing_mode) + \
                   'Board Status: {}\n'.format(s2_instance.status_label)
    print(print_status)


try:
    th = S2SerialHandler(port)
    th.open()
    s2 = init_driver(th)
    s2.set_up()
    s2.retry_policy = retry_policy
    print_status(s2)

finally:
    if th:
        th.close()