Source code for sensirion_shdlc_sensorbridge.commands.analog_measurement

# -*- coding: utf-8 -*-
# (c) Copyright 2020 Sensirion AG, Switzerland

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#
#     THIS FILE IS AUTOMATICALLY GENERATED AND MUST NOT BE EDITED MANUALLY!
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# Generator:    sensirion-shdlc-interface-generator 0.5.1
# Product:      Sensor Bridge
# Version:      0.1.0
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# flake8: noqa

from __future__ import absolute_import, division, print_function
from sensirion_shdlc_driver.command import ShdlcCommand
from struct import pack, unpack

import logging
log = logging.getLogger(__name__)


[docs]class SensorBridgeCmdAnalogMeasurementBase(ShdlcCommand): """ SHDLC command 0x80: "Analog Measurement". """
[docs] def __init__(self, *args, **kwargs): super(SensorBridgeCmdAnalogMeasurementBase, self).__init__( 0x80, *args, **kwargs)
[docs]class SensorBridgeCmdAnalogMeasurement(SensorBridgeCmdAnalogMeasurementBase):
[docs] def __init__(self, port): """ Analog Measurement Command Triggers an analog measurement at the AIN pin of a specific port. The measured voltage is always positive and in the range of 0-5.5V. :param int port: The port where the measurement should be executed: - 0x00: Port 1 - 0x01: Port 2 """ super(SensorBridgeCmdAnalogMeasurement, self).__init__( data=b"".join([pack(">B", port)]), max_response_time=0.1, post_processing_time=0.0, min_response_length=4, max_response_length=4 )
[docs] @staticmethod def interpret_response(data): """ :return: Measured voltage in Volts. :rtype: float """ voltage = float(unpack(">f", data[0:4])[0]) # float return voltage