# -*- coding: utf-8 -*-
# (c) Copyright 2020 Sensirion AG, Switzerland
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# _____ _ _ _______ _____ ____ _ _
# / ____| /\ | | | |__ __|_ _/ __ \| \ | |
# | | / \ | | | | | | | || | | | \| |
# | | / /\ \| | | | | | | || | | | . ` |
# | |____ / ____ \ |__| | | | _| || |__| | |\ |
# \_____/_/ \_\____/ |_| |_____\____/|_| \_|
#
# THIS FILE IS AUTOMATICALLY GENERATED AND MUST NOT BE EDITED MANUALLY!
#
# Generator: sensirion-shdlc-interface-generator 0.8.2
# Product: SVM40
# Version: 0.3.0
#
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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 Svm40CmdAlgorithmStatesBase(ShdlcCommand):
"""
SHDLC command 0x61: "Algorithm States".
"""
[docs] def __init__(self, *args, **kwargs):
"""
Constructor.
"""
super(Svm40CmdAlgorithmStatesBase, self).__init__(
0x61, *args, **kwargs)
[docs]class Svm40CmdGetVocState(Svm40CmdAlgorithmStatesBase):
"""
Get Voc State Command
Gets the current VOC algorithm state. Retrieved values can be used to set
the VOC algorithm state to resume operation after a short interruption,
skipping initial learning phase. This command is only available during
measurement mode.
.. note:: This feature can only be used after at least 3 hours of
continuous operation.
"""
[docs] def __init__(self):
"""
Constructor.
"""
super(Svm40CmdGetVocState, self).__init__(
data=b"".join([bytes(bytearray([0x08]))]),
max_response_time=0.05,
post_processing_time=0.0,
min_response_length=8,
max_response_length=8
)
[docs] @staticmethod
def interpret_response(data):
"""
:return: Current VOC algorithm state.
:rtype: list(int)
"""
state = [int(ii) for ii in unpack(">{}B".format(len(data[0:8]) // 1), data[0:8])] # list(uint8)
return state
[docs]class Svm40CmdSetVocState(Svm40CmdAlgorithmStatesBase):
"""
Set Voc State Command
Set previously retrieved VOC algorithm state to resume operation after a
short interruption, skipping initial learning phase. This command is only
available in idle mode.
.. note:: This feature should not be used after interruptions of more than
10 minutes.
"""
[docs] def __init__(self, state):
"""
Constructor.
:param list(int) state:
Current VOC algorithm state.
"""
super(Svm40CmdSetVocState, self).__init__(
data=b"".join([bytes(bytearray([0x88])),
pack(">{}B".format(len(state)), *state)]),
max_response_time=0.05,
post_processing_time=0.0,
min_response_length=0,
max_response_length=0
)