forked from M-Labs/thermostat
Finish moving over to qasync
Also: * Add aioclient The old client is synchronous and blocking, and the only way to achieve true asynchronous IO is to create a new client that interfaces with asyncio. * Finish Nix Flake description and make the GUI available for `nix run`
This commit is contained in:
parent
d8ec1b4ea3
commit
b39e7dc015
13
flake.nix
13
flake.nix
@ -53,21 +53,14 @@
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thermostat_gui = pkgs.python3Packages.buildPythonPackage rec {
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pname = "thermostat_gui";
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version = "0.0.0";
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src = self;
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preBuild =
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''
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export VERSIONEER_OVERRIDE=${version}
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export VERSIONEER_REV=v0.0.0
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'';
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src = "${self}/pytec";
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nativeBuildInputs = [ pkgs.qt6.wrapQtAppsHook ];
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propagatedBuildInputs = (with pkgs.python3Packages; [ pyqtgraph pyqt6 qasync]);
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propagatedBuildInputs = [ pkgs.qt6.qtbase ] ++ (with pkgs.python3Packages; [ pyqtgraph pyqt6 qasync ]);
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dontWrapQtApps = true;
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postFixup = ''
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ls -al $out/
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wrapQtApp "$out/pytec/tec_qt"
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wrapQtApp "$out/bin/tec_qt"
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'';
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};
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in {
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16
pytec/aioexample.py
Normal file
16
pytec/aioexample.py
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@ -0,0 +1,16 @@
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import asyncio
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from pytec.aioclient import Client
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async def main():
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tec = Client()
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await tec.connect() #(host="192.168.1.26", port=23)
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await tec.set_param("s-h", 1, "t0", 20)
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print(await tec.get_output())
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print(await tec.get_pid())
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print(await tec.get_output())
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print(await tec.get_postfilter())
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print(await tec.get_b_parameter())
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async for data in tec.report_mode():
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print(data)
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asyncio.run(main())
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183
pytec/pytec/aioclient.py
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183
pytec/pytec/aioclient.py
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@ -0,0 +1,183 @@
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import asyncio
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import json
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import logging
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class CommandError(Exception):
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pass
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class Client:
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def __init__(self):
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self._reader = None
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self._writer = None
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self._command_lock = asyncio.Lock()
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async def connect(self, host='192.168.1.26', port=23, timeout=None):
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self._reader, self._writer = await asyncio.open_connection(host, port)
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await self._check_zero_limits()
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async def disconnect(self):
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self._writer.close()
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await self._writer.wait_closed()
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async def _check_zero_limits(self):
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output_report = await self.get_output()
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for output_channel in output_report:
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for limit in ["max_i_neg", "max_i_pos", "max_v"]:
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if output_channel[limit] == 0.0:
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logging.warning("`{}` limit is set to zero on channel {}".format(limit, output_channel["channel"]))
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async def _read_line(self):
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# read 1 line
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chunk = await self._reader.readline()
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return chunk.decode('utf-8', errors='ignore')
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async def _command(self, *command):
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async with self._command_lock:
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self._writer.write(((" ".join(command)).strip() + "\n").encode('utf-8'))
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await self._writer.drain()
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line = await self._read_line()
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response = json.loads(line)
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logging.debug(f"{command}: {response}")
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if "error" in response:
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raise CommandError(response["error"])
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return response
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async def _get_conf(self, topic):
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result = [None, None]
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for item in await self._command(topic):
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result[int(item["channel"])] = item
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return result
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async def get_output(self):
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"""Retrieve output limits for the TEC
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Example::
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[{'channel': 0,
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'center': 'vref',
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'i_set': -0.02002179650216762,
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'max_i_neg': 2.0,
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'max_v': : 3.988,
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'max_i_pos': 2.0,
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'polarity': 'normal'},
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{'channel': 1,
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'center': 'vref',
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'i_set': -0.02002179650216762,
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'max_i_neg': 2.0,
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'max_v': : 3.988,
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'max_i_pos': 2.0,
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'polarity': 'normal'},
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]
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"""
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return await self._get_conf("output")
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async def get_pid(self):
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"""Retrieve PID control state
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Example::
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[{'channel': 0,
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'parameters': {
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'kp': 10.0,
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'ki': 0.02,
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'kd': 0.0,
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'output_min': 0.0,
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'output_max': 3.0},
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'target': 37.0},
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{'channel': 1,
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'parameters': {
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'kp': 10.0,
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'ki': 0.02,
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'kd': 0.0,
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'output_min': 0.0,
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'output_max': 3.0},
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'target': 36.5}]
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"""
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return await self._get_conf("pid")
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async def get_b_parameter(self):
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"""Retrieve B-Parameter equation parameters for resistance to temperature conversion
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Example::
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[{'params': {'b': 3800.0, 'r0': 10000.0, 't0': 298.15}, 'channel': 0},
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{'params': {'b': 3800.0, 'r0': 10000.0, 't0': 298.15}, 'channel': 1}]
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"""
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return await self._get_conf("b-p")
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async def get_postfilter(self):
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"""Retrieve DAC postfilter configuration
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Example::
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[{'rate': None, 'channel': 0},
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{'rate': 21.25, 'channel': 1}]
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"""
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return await self._get_conf("postfilter")
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async def report_mode(self):
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"""Start reporting measurement values
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Example of yielded data::
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{'channel': 0,
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'time': 2302524,
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'adc': 0.6199188965423515,
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'sens': 6138.519310282602,
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'temperature': 36.87032392655527,
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'pid_engaged': True,
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'i_set': 2.0635816680889123,
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'vref': 1.494,
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'dac_value': 2.527790834044456,
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'dac_feedback': 2.523,
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'i_tec': 2.331,
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'tec_i': 2.0925,
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'tec_u_meas': 2.5340000000000003,
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'pid_output': 2.067581958092247}
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"""
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await self._command("report mode", "on")
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while True:
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line = await self._read_line()
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if not line:
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break
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try:
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yield json.loads(line)
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except json.decoder.JSONDecodeError:
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pass
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async def set_param(self, topic, channel, field="", value=""):
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"""Set configuration parameters
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Examples::
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tec.set_param("output", 0, "max_v", 2.0)
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tec.set_param("pid", 1, "output_max", 2.5)
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tec.set_param("s-h", 0, "t0", 20.0)
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tec.set_param("center", 0, "vref")
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tec.set_param("postfilter", 1, 21)
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See the firmware's README.md for a full list.
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"""
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if type(value) is float:
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value = "{:f}".format(value)
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if type(value) is not str:
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value = str(value)
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await self._command(topic, str(channel), field, value)
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async def power_up(self, channel, target):
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"""Start closed-loop mode"""
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await self.set_param("pid", channel, "target", value=target)
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await self.set_param("output", channel, "pid")
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async def save_config(self):
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"""Save current configuration to EEPROM"""
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await self._command("save")
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async def load_config(self):
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"""Load current configuration from EEPROM"""
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await self._command("load")
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async def hw_rev(self):
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"""Get Thermostat hardware revision"""
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return await self._command("hwrev")
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async def fan(self):
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"""Get Thermostat current fan settings"""
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return await self._command("fan")
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@ -9,4 +9,10 @@ setup(
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license="GPLv3",
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install_requires=["setuptools"],
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packages=find_packages(),
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entry_points={
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"gui_scripts": [
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"tec_qt = tec_qt:main",
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]
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},
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py_modules=['tec_qt', 'ui_tec_qt'],
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)
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182
pytec/tec_qt.py
182
pytec/tec_qt.py
@ -1,5 +1,5 @@
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from PyQt6 import QtWidgets, uic
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from PyQt6.QtCore import QThread, QThreadPool, pyqtSignal, QRunnable, QObject, QSignalBlocker, pyqtSlot, QDeadlineTimer
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from PyQt6.QtCore import pyqtSignal, QObject, QSignalBlocker, pyqtSlot
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from pyqtgraph import PlotWidget
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from pyqtgraph.parametertree import Parameter, ParameterTree, ParameterItem, registerParameterType
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import pyqtgraph as pg
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@ -7,9 +7,9 @@ import sys
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import argparse
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import logging
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import asyncio
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import atexit
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from pytec.client import Client
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from qasync import QEventLoop
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from pytec.aioclient import Client
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import qasync
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from qasync import asyncSlot, asyncClose
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# pyuic6 -x tec_qt.ui -o ui_tec_qt.py
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from ui_tec_qt import Ui_MainWindow
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@ -19,9 +19,8 @@ tec_client: Client = None
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# ui = None
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ui: Ui_MainWindow = None
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queue = None
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connection_watcher = None
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client_watcher = None
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client_watcher_task = None
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app: QtWidgets.QApplication = None
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@ -38,85 +37,8 @@ def get_argparser():
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return parser
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def wrap_client_task(func, *args, **kwargs):
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loop = asyncio.get_event_loop()
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task = ClientTask(func, *args, **kwargs)
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asyncio.ensure_future(queue.put(task), loop=loop)
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async def process_client_tasks():
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global queue
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if queue is None:
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queue = asyncio.Queue()
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loop = asyncio.get_event_loop()
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while True:
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task = await queue.get()
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await task.run()
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queue.task_done()
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class ClientTask:
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def __init__(self, func, *args, **kwargs):
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self.func = func
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self.args = args
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self.kwargs = kwargs
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super().__init__()
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async def run(self):
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try:
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lock = asyncio.Lock()
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async with lock:
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self.func(*self.args, **self.kwargs)
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except (TimeoutError, OSError):
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logging.warning("Client connection error, disconnecting", exc_info=True)
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if connection_watcher:
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#thread_pool.clear() # clearing all next requests
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connection_watcher.client_disconnected()
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class WatchConnectTask(QObject):
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connected = pyqtSignal(bool)
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hw_rev = pyqtSignal(dict)
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connecting = pyqtSignal()
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fan_update = pyqtSignal(object)
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def __init__(self, parent, ip, port):
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self.ip = ip
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self.port = port
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super().__init__(parent)
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def run(self):
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global tec_client
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try:
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if tec_client:
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tec_client.disconnect()
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tec_client = None
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self.connected.emit(False)
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else:
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self.connecting.emit()
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tec_client = Client(host=self.ip, port=self.port, timeout=30)
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self.connected.emit(True)
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wrap_client_task(lambda: self.hw_rev.emit(tec_client.hw_rev()))
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# wrap_client_task(lambda: self.fan_update.emit(tec_client.fan()))
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except Exception as e:
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logging.error(f"Failed communicating to the {self.ip}:{self.port}: {e}")
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self.connected.emit(False)
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@pyqtSlot()
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def client_disconnected(self):
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global tec_client
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if tec_client:
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tec_client.disconnect()
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tec_client = None
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self.connected.emit(False)
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class ClientWatcher(QObject):
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fan_update = pyqtSignal(object)
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pwm_update = pyqtSignal(object)
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report_update = pyqtSignal(object)
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pid_update = pyqtSignal(object)
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def __init__(self, parent, update_s):
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self.update_s = update_s
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@ -125,19 +47,18 @@ class ClientWatcher(QObject):
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async def run(self):
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while self.running:
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wrap_client_task(lambda: self.update_params())
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await asyncio.sleep(int(self.update_s * 1000))
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await self.update_params()
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await asyncio.sleep(self.update_s)
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def update_params(self):
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self.fan_update.emit(tec_client.fan())
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async def update_params(self):
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self.fan_update.emit(await self._client.get_fan())
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def start_watching(self):
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self._watch_task = asyncio.create_task(self.run())
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@pyqtSlot()
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def stop_watching(self):
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self.running = False
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#deadline = QDeadlineTimer()
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#deadline.setDeadline(100)
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#self.wait(deadline)
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#self.terminate()
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@pyqtSlot()
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def set_update_s(self):
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@ -145,7 +66,7 @@ class ClientWatcher(QObject):
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def on_connection_changed(result):
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global client_watcher, connection_watcher
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global client_watcher, client_watcher_task
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ui.graph_group.setEnabled(result)
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ui.hw_rev_lbl.setEnabled(result)
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ui.fan_group.setEnabled(result)
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@ -161,12 +82,7 @@ def on_connection_changed(result):
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if client_watcher:
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client_watcher.stop_watching()
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client_watcher = None
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elif client_watcher is None:
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client_watcher = ClientWatcher(ui.main_widget, ui.report_refresh_spin.value())
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client_watcher.fan_update.connect(fan_update)
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ui.report_apply_btn.clicked.connect(client_watcher.set_update_s)
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app.aboutToQuit.connect(client_watcher.stop_watching)
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wrap_client_task(client_watcher.run)
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client_watcher_task = None
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def hw_rev(hw_rev_d: dict):
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@ -192,55 +108,73 @@ def fan_update(fan_settings):
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ui.fan_auto_box.setChecked(fan_settings["auto_mode"])
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def fan_set():
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@asyncSlot()
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async def fan_set(_):
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global tec_client
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if tec_client is None or ui.fan_auto_box.isChecked():
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return
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wrap_client_task(lambda: tec_client.set_param("fan", ui.fan_power_slider.value()))
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await tec_client.set_param("fan", ui.fan_power_slider.value())
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def fan_auto_set(enabled):
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@asyncSlot()
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async def fan_auto_set(enabled):
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global tec_client
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if tec_client is None:
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return
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ui.fan_power_slider.setEnabled(not enabled)
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if enabled:
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wrap_client_task(lambda: tec_client.set_param("fan", "auto"))
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await tec_client.set_param("fan", "auto")
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else:
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wrap_client_task(lambda: tec_client.set_param("fan", ui.fan_power_slider.value()))
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await tec_client.set_param("fan", ui.fan_power_slider.value())
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def connect():
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global connection_watcher
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connection_watcher = WatchConnectTask(ui.main_widget, ui.ip_set_line.text(), ui.port_set_spin.value())
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connection_watcher.connected.connect(on_connection_changed)
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connection_watcher.connecting.connect(lambda: ui.status_lbl.setText("Connecting..."))
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connection_watcher.hw_rev.connect(hw_rev)
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connection_watcher.fan_update.connect(fan_update)
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wrap_client_task(connection_watcher.run)
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#app.aboutToQuit.connect(connection_watcher.terminate)
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@asyncSlot()
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async def connect(_):
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global tec_client, client_watcher, client_watcher_task
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ip, port = ui.ip_set_line.text(), ui.port_set_spin.value()
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try:
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if tec_client:
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await tec_client.disconnect()
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tec_client = None
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on_connection_changed(False)
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else:
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ui.status_lbl.setText("Connecting...")
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tec_client = Client()
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await tec_client.connect(host=ip, port=port, timeout=30)
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on_connection_changed(True)
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hw_rev(await tec_client.hw_rev())
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# fan_update(await tec_client.fan())
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if client_watcher is None:
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client_watcher = ClientWatcher(ui.main_widget, ui.report_refresh_spin.value())
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client_watcher.fan_update.connect(fan_update)
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ui.report_apply_btn.clicked.connect(
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lambda: client_watcher.set_update_s(ui.report_refresh_spin.value())
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)
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app.aboutToQuit.connect(client_watcher.stop_watching)
|
||||
client_watcher_task = asyncio.create_task(client_watcher.run())
|
||||
except Exception as e:
|
||||
logging.error(f"Failed communicating to the {ip}:{port}: {e}")
|
||||
on_connection_changed(False)
|
||||
|
||||
|
||||
def main():
|
||||
global ui, app, queue
|
||||
async def coro_main():
|
||||
global ui, app
|
||||
|
||||
args = get_argparser().parse_args()
|
||||
if args.logLevel:
|
||||
logging.basicConfig(level=getattr(logging, args.logLevel))
|
||||
|
||||
app = QtWidgets.QApplication(sys.argv)
|
||||
app_quit_event = asyncio.Event()
|
||||
|
||||
loop = QEventLoop(app)
|
||||
asyncio.set_event_loop(loop)
|
||||
atexit.register(loop.close)
|
||||
|
||||
loop.create_task(process_client_tasks())
|
||||
app = QtWidgets.QApplication.instance()
|
||||
app.aboutToQuit.connect(app_quit_event.set)
|
||||
|
||||
main_window = QtWidgets.QMainWindow()
|
||||
ui = Ui_MainWindow()
|
||||
ui.setupUi(main_window)
|
||||
# ui = uic.loadUi('tec_qt.ui', main_window)
|
||||
|
||||
ui.connect_btn.clicked.connect(lambda _checked: connect())
|
||||
ui.connect_btn.clicked.connect(connect)
|
||||
ui.fan_power_slider.valueChanged.connect(fan_set)
|
||||
ui.fan_auto_box.stateChanged.connect(fan_auto_set)
|
||||
|
||||
@ -253,7 +187,11 @@ def main():
|
||||
|
||||
main_window.show()
|
||||
|
||||
loop.run_until_complete(app.exec())
|
||||
await app_quit_event.wait()
|
||||
|
||||
|
||||
def main():
|
||||
qasync.run(coro_main())
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
|
||||
Loading…
Reference in New Issue
Block a user