sync
This commit is contained in:
Stefan Kögl
parent
501ea3995e
commit
eb7b4a3060
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@ -0,0 +1,78 @@
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"""
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Listen to serial, return most recent numeric values
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Lots of help from here:
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http://stackoverflow.com/questions/1093598/pyserial-how-to-read-last-line-sent-from-serial-device
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"""
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from threading import Thread
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import time
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import serial
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import struct
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last_received = ''
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profile = []
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PI_TS_MIN = 0
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PI_TS_MAX = 1
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PI_TL = 2
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PI_TP = 3
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PI_TIME_MAX = 4
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PI_RAMP_UP_MIN = 5
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PI_RAMP_UP_MAX = 6
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PI_RAMP_DOWN_MIN = 7
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PI_RAMP_DOWN_MAX = 8
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PI_TS_DURATION_MIN = 9
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PI_TS_DURATION_MAX = 10
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PI_TL_DURATION_MIN = 11
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PI_TL_DURATION_MAX = 12
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PI_TP_DURATION_MIN = 13
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PI_TP_DURATION_MAX = 14
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def receiving(ser):
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global last_received
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buffer = ''
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ser.write(chr(255))
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ser.flush()
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profile = struct.unpack("hhhhhhhhhhhhhhh", ser.read(30))
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ser.flushInput()
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while 1:
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ser.write(chr(254))
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ser.flush()
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last_received = ser.read(11)
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print repr(last_received)
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ser.flushInput()
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class SerialData(object):
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def __init__(self, init=50):
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try:
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self.ser = ser = serial.Serial(
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port='/dev/ttyUSB0',
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baudrate=9600, timeout=2)
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except serial.serialutil.SerialException:
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#no serial connection
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self.ser = None
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else:
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Thread(target=receiving, args=(self.ser,)).start()
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def next(self):
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if not self.ser:
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return 100 #return anything so we can test when Arduino isn't connected
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try:
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return int(struct.unpack("hhhhhb", last_received)[1])
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except Exception, e:
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print e
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return 0
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def __del__(self):
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if self.ser:
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self.ser.close()
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if __name__=='__main__':
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s = SerialData()
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for i in range(500):
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time.sleep(1)
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print s.next()
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@ -11,8 +11,8 @@ Profile _profile;
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OvenCtl::OvenCtl() {
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time = 0;
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temperature = 0;
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last_temperature = 0;
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temperature = 1;
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last_temperature = 1;
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actual_dt = 0;
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// timestamps of event beginnings/ends
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Ts_time_start = 0;
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@ -43,7 +43,7 @@ Profile::Profile() :
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180,
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60,
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150,
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1,
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20,
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40}),
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config_index(0),
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config_state(0),
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@ -0,0 +1,378 @@
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# -*- coding: utf-8 -*-
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"""
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GP:
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Changed datasource, title, and refresh interval to use
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as a poor man's Arduino oscilliscope.
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This demo demonstrates how to draw a dynamic mpl (matplotlib)
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plot in a wxPython application.
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It allows "live" plotting as well as manual zooming to specific
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regions.
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Both X and Y axes allow "auto" or "manual" settings. For Y, auto
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mode sets the scaling of the graph to see all the data points.
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For X, auto mode makes the graph "follow" the data. Set it X min
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to manual 0 to always see the whole data from the beginning.
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Note: press Enter in the 'manual' text box to make a new value
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affect the plot.
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Eli Bendersky (eliben@gmail.com)
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License: this code is in the public domain
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Last modified: 31.07.2008
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"""
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import os
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import pprint
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import random
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import sys
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import wx
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REFRESH_INTERVAL_MS = 1000
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# The recommended way to use wx with mpl is with the WXAgg
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# backend.
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#
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import matplotlib
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matplotlib.use('WXAgg')
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from matplotlib.figure import Figure
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from matplotlib.backends.backend_wxagg import \
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FigureCanvasWxAgg as FigCanvas, \
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NavigationToolbar2WxAgg as NavigationToolbar
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from matplotlib.path import Path
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import matplotlib.patches as patches
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import numpy as np
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import pylab
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#Data comes from here
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from Arduino_Monitor import SerialData as DataGen
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class BoundControlBox(wx.Panel):
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""" A static box with a couple of radio buttons and a text
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box. Allows to switch between an automatic mode and a
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manual mode with an associated value.
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"""
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def __init__(self, parent, ID, label, initval):
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wx.Panel.__init__(self, parent, ID)
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self.value = initval
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box = wx.StaticBox(self, -1, label)
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sizer = wx.StaticBoxSizer(box, wx.VERTICAL)
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self.radio_auto = wx.RadioButton(self, -1,
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label="Auto", style=wx.RB_GROUP)
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self.radio_manual = wx.RadioButton(self, -1,
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label="Manual")
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self.manual_text = wx.TextCtrl(self, -1,
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size=(35,-1),
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value=str(initval),
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style=wx.TE_PROCESS_ENTER)
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self.Bind(wx.EVT_UPDATE_UI, self.on_update_manual_text, self.manual_text)
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self.Bind(wx.EVT_TEXT_ENTER, self.on_text_enter, self.manual_text)
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manual_box = wx.BoxSizer(wx.HORIZONTAL)
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manual_box.Add(self.radio_manual, flag=wx.ALIGN_CENTER_VERTICAL)
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manual_box.Add(self.manual_text, flag=wx.ALIGN_CENTER_VERTICAL)
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sizer.Add(self.radio_auto, 0, wx.ALL, 10)
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sizer.Add(manual_box, 0, wx.ALL, 10)
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self.radio_auto.SetValue(False);
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self.radio_manual.SetValue(True);
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self.SetSizer(sizer)
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sizer.Fit(self)
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def on_update_manual_text(self, event):
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self.manual_text.Enable(self.radio_manual.GetValue())
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def on_text_enter(self, event):
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self.value = self.manual_text.GetValue()
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def is_auto(self):
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return self.radio_auto.GetValue()
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def manual_value(self):
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return self.value
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class GraphFrame(wx.Frame):
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""" The main frame of the application
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"""
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title = 'Demo: dynamic matplotlib graph'
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def __init__(self):
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wx.Frame.__init__(self, None, -1, self.title)
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self.datagen = DataGen()
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self.data = [self.datagen.next()]
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self.paused = False
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self.create_menu()
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self.create_status_bar()
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self.create_main_panel()
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self.redraw_timer = wx.Timer(self)
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self.Bind(wx.EVT_TIMER, self.on_redraw_timer, self.redraw_timer)
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self.redraw_timer.Start(REFRESH_INTERVAL_MS)
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def create_menu(self):
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self.menubar = wx.MenuBar()
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menu_file = wx.Menu()
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m_expt = menu_file.Append(-1, "&Save plot\tCtrl-S", "Save plot to file")
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self.Bind(wx.EVT_MENU, self.on_save_plot, m_expt)
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menu_file.AppendSeparator()
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m_exit = menu_file.Append(-1, "E&xit\tCtrl-X", "Exit")
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self.Bind(wx.EVT_MENU, self.on_exit, m_exit)
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self.menubar.Append(menu_file, "&File")
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self.SetMenuBar(self.menubar)
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def create_main_panel(self):
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self.panel = wx.Panel(self)
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self.init_plot()
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self.canvas = FigCanvas(self.panel, -1, self.fig)
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self.xmin_control = BoundControlBox(self.panel, -1, "X min", 0)
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self.xmax_control = BoundControlBox(self.panel, -1, "X max", 250)
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self.ymin_control = BoundControlBox(self.panel, -1, "Y min", 0)
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self.ymax_control = BoundControlBox(self.panel, -1, "Y max", 280)
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self.pause_button = wx.Button(self.panel, -1, "Pause")
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self.Bind(wx.EVT_BUTTON, self.on_pause_button, self.pause_button)
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self.Bind(wx.EVT_UPDATE_UI, self.on_update_pause_button, self.pause_button)
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self.cb_grid = wx.CheckBox(self.panel, -1,
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"Show Grid",
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style=wx.ALIGN_RIGHT)
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self.Bind(wx.EVT_CHECKBOX, self.on_cb_grid, self.cb_grid)
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self.cb_grid.SetValue(True)
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self.cb_xlab = wx.CheckBox(self.panel, -1,
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"Show X labels",
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style=wx.ALIGN_RIGHT)
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self.Bind(wx.EVT_CHECKBOX, self.on_cb_xlab, self.cb_xlab)
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self.cb_xlab.SetValue(True)
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self.hbox1 = wx.BoxSizer(wx.HORIZONTAL)
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self.hbox1.Add(self.pause_button, border=5, flag=wx.ALL | wx.ALIGN_CENTER_VERTICAL)
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self.hbox1.AddSpacer(5)
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self.hbox1.Add(self.cb_grid, border=5, flag=wx.ALL | wx.ALIGN_CENTER_VERTICAL)
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self.hbox1.AddSpacer(5)
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self.hbox1.Add(self.cb_xlab, border=5, flag=wx.ALL | wx.ALIGN_CENTER_VERTICAL)
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self.hbox2 = wx.BoxSizer(wx.HORIZONTAL)
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self.hbox2.Add(self.xmin_control, border=5, flag=wx.ALL)
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self.hbox2.Add(self.xmax_control, border=5, flag=wx.ALL)
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self.hbox2.AddSpacer(24)
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self.hbox2.Add(self.ymin_control, border=5, flag=wx.ALL)
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self.hbox2.Add(self.ymax_control, border=5, flag=wx.ALL)
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self.vbox = wx.BoxSizer(wx.VERTICAL)
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self.vbox.Add(self.canvas, 1, flag=wx.LEFT | wx.TOP | wx.GROW)
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self.vbox.Add(self.hbox1, 0, flag=wx.ALIGN_LEFT | wx.TOP)
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self.vbox.Add(self.hbox2, 0, flag=wx.ALIGN_LEFT | wx.TOP)
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self.panel.SetSizer(self.vbox)
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self.vbox.Fit(self)
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def create_status_bar(self):
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self.statusbar = self.CreateStatusBar()
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def init_plot(self):
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self.dpi = 100
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self.fig = Figure((3.0, 3.0), dpi=self.dpi)
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self.axes = self.fig.add_subplot(111)
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self.axes.set_axis_bgcolor('black')
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self.axes.set_title(u'Reflow Temperature', size=12)
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self.axes.set_xlabel(u'Time / seconds', size=12)
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self.axes.set_ylabel(u'Temperature / °C', size=12)
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pylab.setp(self.axes.get_xticklabels(), fontsize=8)
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pylab.setp(self.axes.get_yticklabels(), fontsize=8)
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# plot the data as a line series, and save the reference
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# to the plotted line series
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#
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ts_min_x_min = Arduino_Monitor.profile[Arduino_Monitor.PI_TS_MIN] / Arduino_Monitor.profile[Arduino_Monitor.PI_RAMP_UP_MAX]
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ts_min_y_min = ts_min
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ts_max_x_min = ts_min_x_min + Arduino_Monitor.profile[Arduino_Monitor.PI_TS_DURATION_MIN]
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ts_max_y_min = ts_max
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ts_max_x_max = ts_min_x_min + Arduino_Monitor.profile[Arduino_Monitor.PI_TS_DURATION_MAX]
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ts_max_y_max = ts_max
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ts_min_x_max = ts_max_x_max - (ts_max_y_max - ts_min_y) / Arduino_Monitor.profile[Arduino_Monitor.PI_RAMP_UP_MAX])
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ts_min_y_max = ts_min
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tl_x_min = ts_max_x_min + (Arduino_Monitor.profile[Arduino_Monitor.PI_TL] - Arduino_Monitor.profile[Arduino_Monitor.PI_TS_MAX]) / Arduino_Monitor.profile[Arduino_Monitor.PI_RAMP_UP_MAX]
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tl_x_min = Arduino_Monitor.profile[Arduino_Monitor.PI_TL]
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tl_x_min = ts_max_x_min + (Arduino_Monitor.profile[Arduino_Monitor.PI_TL] - Arduino_Monitor.profile[Arduino_Monitor.PI_TS_MAX]) / Arduino_Monitor.profile[Arduino_Monitor.PI_RAMP_UP_MAX]
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tl_y_min = Arduino_Monitor.profile[Arduino_Monitor.PI_TL]
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tl_x_max = tl_x_min + Arduino_Monitor.profile[Arduino_Monitor.PI_TL_DURATION_MIN]
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tl_y_max = Arduino_Monitor.profile[Arduino_Monitor.PI_TL]
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verts = [
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[ 0.0, 0.0],
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[ 75.0, 150.0],
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[100.0, 200.0],
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[108.5, 217.0],
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[130.0, 260.0],
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[170.0, 260.0],
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[300.0, 0.0],
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[ 0.0, 0.0]]
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codes = [Path.MOVETO,
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Path.LINETO,
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Path.LINETO,
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Path.LINETO,
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Path.LINETO,
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Path.LINETO,
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Path.LINETO,
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Path.CLOSEPOLY]
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self.plot_data = self.axes.plot(
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self.data,
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linewidth=1,
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color=(1, 1, 0),
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)[0]
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path = Path(verts, codes)
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self.patch = patches.PathPatch(path, edgecolor="red", facecolor='orange', lw=2)
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self.axes.add_patch(self.patch)
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def draw_plot(self):
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""" Redraws the plot
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"""
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# when xmin is on auto, it "follows" xmax to produce a
|
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# sliding window effect. therefore, xmin is assigned after
|
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# xmax.
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#
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if self.xmax_control.is_auto():
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xmax = len(self.data) if len(self.data) > 50 else 50
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else:
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xmax = int(self.xmax_control.manual_value())
|
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|
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if self.xmin_control.is_auto():
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xmin = xmax - 50
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else:
|
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xmin = int(self.xmin_control.manual_value())
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#xmax = 480
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# for ymin and ymax, find the minimal and maximal values
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# in the data set and add a mininal margin.
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#
|
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# note that it's easy to change this scheme to the
|
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# minimal/maximal value in the current display, and not
|
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# the whole data set.
|
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#
|
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if self.ymin_control.is_auto():
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ymin = round(min(self.data), 0) - 1
|
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else:
|
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ymin = int(self.ymin_control.manual_value())
|
||||
|
||||
if self.ymax_control.is_auto():
|
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ymax = round(max(self.data), 0) + 1
|
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else:
|
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ymax = int(self.ymax_control.manual_value())
|
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|
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#ymax = 300
|
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|
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self.axes.set_xbound(lower=xmin, upper=xmax)
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self.axes.set_ybound(lower=ymin, upper=ymax)
|
||||
|
||||
# anecdote: axes.grid assumes b=True if any other flag is
|
||||
# given even if b is set to False.
|
||||
# so just passing the flag into the first statement won't
|
||||
# work.
|
||||
#
|
||||
if self.cb_grid.IsChecked():
|
||||
self.axes.grid(True, color='gray')
|
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else:
|
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self.axes.grid(False)
|
||||
|
||||
# Using setp here is convenient, because get_xticklabels
|
||||
# returns a list over which one needs to explicitly
|
||||
# iterate, and setp already handles this.
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||||
#
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pylab.setp(self.axes.get_xticklabels(),
|
||||
visible=self.cb_xlab.IsChecked())
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||||
|
||||
self.plot_data.set_xdata(np.arange(len(self.data)))
|
||||
self.plot_data.set_ydata(np.array(self.data))
|
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|
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self.canvas.draw()
|
||||
|
||||
def on_pause_button(self, event):
|
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self.paused = not self.paused
|
||||
|
||||
def on_update_pause_button(self, event):
|
||||
label = "Resume" if self.paused else "Pause"
|
||||
self.pause_button.SetLabel(label)
|
||||
|
||||
def on_cb_grid(self, event):
|
||||
self.draw_plot()
|
||||
|
||||
def on_cb_xlab(self, event):
|
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self.draw_plot()
|
||||
|
||||
def on_save_plot(self, event):
|
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file_choices = "PNG (*.png)|*.png"
|
||||
|
||||
dlg = wx.FileDialog(
|
||||
self,
|
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message="Save plot as...",
|
||||
defaultDir=os.getcwd(),
|
||||
defaultFile="plot.png",
|
||||
wildcard=file_choices,
|
||||
style=wx.SAVE)
|
||||
|
||||
if dlg.ShowModal() == wx.ID_OK:
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path = dlg.GetPath()
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self.canvas.print_figure(path, dpi=self.dpi)
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self.flash_status_message("Saved to %s" % path)
|
||||
|
||||
def on_redraw_timer(self, event):
|
||||
# if paused do not add data, but still redraw the plot
|
||||
# (to respond to scale modifications, grid change, etc.)
|
||||
#
|
||||
if not self.paused:
|
||||
self.data.append(self.datagen.next())
|
||||
|
||||
self.draw_plot()
|
||||
|
||||
def on_exit(self, event):
|
||||
self.Destroy()
|
||||
|
||||
def flash_status_message(self, msg, flash_len_ms=1500):
|
||||
self.statusbar.SetStatusText(msg)
|
||||
self.timeroff = wx.Timer(self)
|
||||
self.Bind(
|
||||
wx.EVT_TIMER,
|
||||
self.on_flash_status_off,
|
||||
self.timeroff)
|
||||
self.timeroff.Start(flash_len_ms, oneShot=True)
|
||||
|
||||
def on_flash_status_off(self, event):
|
||||
self.statusbar.SetStatusText('')
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
app = wx.PySimpleApp()
|
||||
app.frame = GraphFrame()
|
||||
app.frame.Show()
|
||||
app.MainLoop()
|
||||
Loading…
Reference in New Issue