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#!/usr/bin/env python | |
import os | |
import serial | |
import serial.tools.list_ports | |
import threading | |
import tkinter as tk | |
import time | |
from threading import Thread | |
from time import sleep | |
from tkinter import filedialog as fd | |
from tkinter import ttk | |
running = True | |
f = "" | |
def timer(sp, interval): | |
global f | |
while running: | |
sleep(interval) | |
line = sp.readline().decode("utf-8") | |
data = [float(val) for val in line.split(' ')] | |
t = time.strftime("%Y-%m-%d %H:%M:%S") | |
newRow = "%s,%s,%s\n" % (t, data[0], data[1]) | |
with open(f.name, "a") as datafile: | |
datafile.write(newRow) | |
def collect(strPort, interval): | |
global f | |
# Ask for a location to save the CSV file | |
f = fd.asksaveasfile(mode='w', defaultextension=".csv") | |
if f is None: # User canceled save dialog | |
return | |
# Overwrite existing file | |
try: | |
os.remove(f) | |
except: | |
# File does not exist yet | |
pass | |
sp = serial.Serial(strPort, 9600) | |
time_thread = Thread(target=timer, args=(sp, interval)) | |
time_thread.start() | |
def end(): | |
global running | |
running = False | |
def onIncrement(counter): | |
counter.set(counter.get() + 1) | |
def main(): | |
root = tk.Tk() | |
root.title("Serial USB Temperature Data Collector") | |
mainframe = ttk.Frame(root) | |
mainframe.grid(column=0, row=0, sticky=(tk.N,tk.W,tk.E,tk.S)) | |
mainframe.pack() | |
serial_label = ttk.Label(mainframe, text="Sensor Serial Port:") | |
serial_label.grid(row=0, column=0) | |
serial_var = tk.StringVar(root) | |
raw_ports = list(serial.tools.list_ports.comports()) | |
ports = [] | |
for p in raw_ports: | |
if "USB Serial" in p.description: | |
ports.append(p.device) | |
serial_menu = ttk.OptionMenu(mainframe, serial_var, *ports) | |
serial_menu.grid(row=0, column=1) | |
counter = tk.IntVar() | |
counter.set(60) | |
duration_label = ttk.Label(mainframe, textvariable=counter) | |
duration_label.grid(row=1, column=1) | |
duration_increment = ttk.Button(mainframe, | |
text="Increase Collection Interval (sec)", | |
command=lambda: onIncrement(counter)) | |
duration_increment.grid(row=1, column=0) | |
collect_button = ttk.Button(mainframe, text="Begin Data Collection", | |
command=lambda: collect(serial_var.get(), | |
counter.get())) | |
collect_button.grid(row=2, column=0, sticky=(tk.E, tk.W)) | |
end_button = ttk.Button(mainframe, text="End Data Collection", | |
command=lambda: end()) | |
end_button.grid(row=2, column=1, sticky=(tk.E, tk.W)) | |
root.mainloop() | |
if __name__ == '__main__': | |
main() |
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