Files
argon40-battery-display/monitor/simple_monitor.py
Jeff Curless 927f00f655 Update simple monitor
Was not using the same library, now it is.
2025-11-01 18:29:26 -04:00

162 lines
5.3 KiB
Python
Executable File

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
PyQt5 CPU/NVMe Monitor
- getCPUTemp() -> float (°C)
- getDriveTemp() -> float (°C)
- getIORate() -> tuple[float, float] in MB/s as (read_mb_s, write_mb_s)
Replace the stub return values with your real implementations later.
"""
import sys
from typing import Tuple
from systemsupport import multiDriveStat, CPUInfo, CPULoad
sysdata = multiDriveStat()
cpuinfo = CPUInfo()
# --------------------------
# Metrics function stubs
# --------------------------
def getCPUTemp() -> float:
"""Return current CPU temperature in °C."""
return float( cpuinfo.temperature )
def getDriveTemp() -> float:
"""Return current NVMe drive temperature in °C."""
return sysdata.driveTemp( "nvme0n1" )
def getIORate() -> Tuple[float, float]:
"""Return current NVMe IO rates (read_MBps, write_MBps)."""
data = sysdata.readWriteBytes()
return data["nvme0n1"]
# --------------------------
# UI
# --------------------------
from PyQt5.QtCore import Qt, QTimer, QDateTime
from PyQt5.QtWidgets import (
QApplication, QMainWindow, QWidget, QGridLayout, QLabel, QProgressBar, QHBoxLayout
)
class MetricRow(QWidget):
"""A compact row with a label, numeric value, unit, and optional progress bar."""
def __init__(self, title: str, show_bar: bool = False, bar_min: int = 0, bar_max: int = 110, parent=None):
super().__init__(parent)
self.title_lbl = QLabel(title)
self.title_lbl.setStyleSheet("font-weight: 600;")
self.value_lbl = QLabel("--")
self.value_lbl.setAlignment(Qt.AlignRight | Qt.AlignVCenter)
self.unit_lbl = QLabel("")
self.unit_lbl.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
layout = QGridLayout(self)
layout.setContentsMargins(0, 0, 0, 0)
layout.addWidget(self.title_lbl, 0, 0, 1, 1)
layout.addWidget(self.value_lbl, 0, 1, 1, 1)
layout.addWidget(self.unit_lbl, 0, 2, 1, 1)
self.bar = None
if show_bar:
self.bar = QProgressBar()
self.bar.setMinimum(bar_min)
self.bar.setMaximum(bar_max)
self.bar.setTextVisible(False)
layout.addWidget(self.bar, 1, 0, 1, 3)
layout.setColumnStretch(0, 1)
layout.setColumnStretch(1, 0)
layout.setColumnStretch(2, 0)
def set_value(self, value: float, unit: str = "", bar_value: float = None):
self.value_lbl.setText(f"{value:.1f}")
self.unit_lbl.setText(unit)
if self.bar is not None and bar_value is not None:
self.bar.setValue(int(bar_value))
class MonitorWindow(QMainWindow):
def __init__(self, refresh_ms: int = 1000, parent=None):
super().__init__(parent)
self.setWindowTitle("CPU & NVMe Monitor")
self.setMinimumWidth(420)
central = QWidget(self)
grid = QGridLayout(central)
grid.setContentsMargins(16, 16, 16, 16)
grid.setVerticalSpacing(12)
self.setCentralWidget(central)
# Rows
self.cpu_row = MetricRow("CPU Temperature", show_bar=True, bar_max=90)
self.nvme_row = MetricRow("NVMe Temperature", show_bar=True, bar_max=90)
# IO row: two side-by-side values
self.io_title = QLabel("NVMe I/O Rate")
self.io_title.setStyleSheet("font-weight: 600;")
self.io_read = QLabel("Read: -- MB/s")
self.io_write = QLabel("Write: -- MB/s")
io_box = QHBoxLayout()
io_box.addWidget(self.io_read, 1)
io_box.addWidget(self.io_write, 1)
# Last updated
self.updated_lbl = QLabel("Last updated: --")
self.updated_lbl.setAlignment(Qt.AlignRight | Qt.AlignVCenter)
self.updated_lbl.setStyleSheet("color: #666; font-size: 11px;")
# Layout
grid.addWidget(self.cpu_row, 0, 0, 1, 2)
grid.addWidget(self.nvme_row, 1, 0, 1, 2)
grid.addWidget(self.io_title, 2, 0, 1, 2)
grid.addLayout(io_box, 3, 0, 1, 2)
grid.addWidget(self.updated_lbl, 4, 0, 1, 2)
# Timer
self.timer = QTimer(self)
self.timer.timeout.connect(self.refresh_metrics)
self.timer.start(refresh_ms)
# Initial fill
self.refresh_metrics()
def refresh_metrics(self):
try:
cpu_c = float(getCPUTemp())
except Exception:
cpu_c = float("nan")
try:
nvme_c = float(getDriveTemp())
except Exception:
nvme_c = float("nan")
try:
read_mb, write_mb = getIORate()
read_mb = float(read_mb)
write_mb = float(write_mb)
except Exception:
read_mb, write_mb = float("nan"), float("nan")
# Update rows
self.cpu_row.set_value(cpu_c if cpu_c == cpu_c else 0.0, "°C", bar_value=cpu_c if cpu_c == cpu_c else 0)
self.nvme_row.set_value(nvme_c if nvme_c == nvme_c else 0.0, "°C", bar_value=nvme_c if nvme_c == nvme_c else 0)
self.io_read.setText(f"Read: {read_mb:.1f} MB/s" if read_mb == read_mb else "Read: -- MB/s")
self.io_write.setText(f"Write: {write_mb:.1f} MB/s" if write_mb == write_mb else "Write: -- MB/s")
self.updated_lbl.setText(f"Last updated: {QDateTime.currentDateTime().toString('yyyy-MM-dd hh:mm:ss')}")
def main():
app = QApplication(sys.argv)
w = MonitorWindow(refresh_ms=1000)
w.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()