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Commit 98ef270

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Added Python Datalogger and Arduino Side Code to repo
1 parent ff5a9fa commit 98ef270

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// Arduino side code for data acquisition
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// Assume Arduino connected to 4 Sensors ,On receiving appropriate characters,Arduino sends back Sensor values
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// @ -> will trigger TransmitHumidityValue(); -> will send back humidity value
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// # -> will trigger TransmitSoilMoistureValue(); -> will send back Soil-Moisture value
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// $ -> will trigger Transmit_Temperature_Value(); -> will send back Temperature Value
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// & -> will trigger TransmitLightIntensityValue(); -> will send back Light Sensor Value
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// Functions are standin and user is supposed to implement them according to their needs
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// For Demo, the functions send a random number.
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void setup()
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{
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Serial.begin(9600); //Data will be send to PC @9600bps
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}
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void loop()
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{
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char ReceivedByte; //
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if (Serial.available() > 0) //Wait for data reception
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{
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ReceivedByte = Serial.read();//Read data from Arduino Serial UART buffer
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switch(ReceivedByte)
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{
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case '@': //Serial.print('@');
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//Serial.print("HumidityValue ->");
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TransmitHumidityValue();
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break;
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case '$': //Serial.print('$');
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//Serial.print("4TemperatureValues ->");
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Transmit_Temperature_Value();
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break;
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case '#': //Serial.print('#');
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//Serial.print("SoilMoistureValue ->");
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TransmitSoilMoistureValue();
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break;
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case '&': //Serial.print('&');
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//Serial.print("LightIntensityValue -> ");
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TransmitLightIntensityValue();
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break;
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default: Serial.println("Default Value");
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}//end of switch()
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}//end of if
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}//end of loop()
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void TransmitHumidityValue(void)
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{
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//Send Dummy Values using Random number generator for now
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//Implement the code for talking with sensor here
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long RandomNumber ;
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RandomNumber = random(40,90); //Generate Random number between 40 and 90
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Serial.println(RandomNumber); //Send Number followed by \n so python readline will exit on PC side
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}
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void TransmitSoilMoistureValue(void)
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{
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// Send Dummy Values using Random number generator for now
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// Implement the code for talking with sensor here
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long RandomNumber ;
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RandomNumber = random(30,50);// Generate Random number between 30 and 50
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Serial.println(RandomNumber);// Send Number followed by \n so python readline will exit on PC side
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}
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void TransmitLightIntensityValue(void)
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{
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// Send Dummy Values using Random number generator for now
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// Implement the code for talking with sensor here
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long RandomNumber ;
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RandomNumber = random(0,1024);// Generate Random number between 0 and 1024
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Serial.println(RandomNumber); // Send Number followed by \n so python readline will exit on PC side
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}
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void Transmit_Temperature_Value(void)
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{
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// Send Dummy Values using Random number generator for now
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// Implement the code for talking with sensor here
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long RandomNumber ;
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RandomNumber = random(20,90);// Generate Random number between 20 and 90
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Serial.println(RandomNumber);// Send Number followed by \n so python readline will exit on PC side
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}
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#requires pyserial installed
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#requires ttkbootstrap installed
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from tkinter import *
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import ttkbootstrap as ttkb
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from ttkbootstrap.dialogs import Messagebox
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from ttkbootstrap.scrolled import ScrolledText
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import tkinter as tk
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import serial
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import threading
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import time
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import csv
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import webbrowser
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import os
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baud_rate = 0
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csv_delimiter = ','
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log_int = 0
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#create Dropdown options
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baudrates = [0,600,1200,2400,4800,9600,19200,38400]
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log_interval = [0,0.5,1,1.5,2,2.5,3,4,5,10,20,30,60,120]
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tutorial_text = ''' Tutorial
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Select Serial Port number like COM3 or COM12 in Windows
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Select Serial Port number like ttyUSB0 or ttyACM0 in Linux
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Select Baudrate from Drop Down Menu
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Select Logging interval from Drop Down Menu
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Click Start Logging to start datalog
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Click Stop Logging to stop datalog
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Data saved in disk\n'''
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def acquire_arduino_data(serialport_name,baud_rate,logging_interval):
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serialport_obj = None #declared here so accessible inside and outside try/catch
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log_count = 1
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#Create the Serial port object
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try:
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serialport_obj = serial.Serial(serialport_name,baud_rate) #open the serial port
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text_log.insert(END,f'{serialport_name} selected,at {baud_rate} ,\n')
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text_log.insert(END,f'Logging Interval = {logging_interval} seconds,\n')
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text_log.insert(END,f'Wait for Arduino to Reset,\n')
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time.sleep(2) #Some time for Arduino board to reset
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text_log.insert(END,f'Arduino Ready Now ,\n\n')
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except serial.SerialException as var : #In case of error
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text_log.insert(END,f'{var} ,\n')
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log_file_name = create_filename_current_date_time()
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csv_header =['No','Date','Time','Unix Time','Humidity','Soil Moisture','Temperature','Light Intensity']
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with open(log_file_name,'a',newline ='') as File_obj:
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csvwriter_obj = csv.writer(File_obj, delimiter = csv_delimiter)
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csvwriter_obj.writerow(csv_header)
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text_log.insert(END,f'Log file -> {log_file_name}\n\n')
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text_log.insert(END,f'Starting Logging @{logging_interval} interval\n\n')
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text_log.insert(END,f'{csv_header}\n')
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csv_filename_loc.insert(END,f'{os.getcwd()}\n')
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csv_filename_loc.insert(END,f'{log_file_name}\n')
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while True:
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#print(start_logging_event.is_set())
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if start_logging_event.is_set() == True:
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arduino_sensor_data_list = read_arduino_sensors(serialport_obj)
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#print(arduino_sensor_data_list)
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unix_timestamp = int(time.time()) #get current unix time to time stamp data
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log_time_date = time.localtime(unix_timestamp) #Convert epoch time to human readable time,date format
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log_time = time.strftime("%H:%M:%S",log_time_date) #hh:mm:ss
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log_date = time.strftime("%d %B %Y",log_time_date) #dd MonthName Year
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arduino_sensor_data_list.insert(0,str(log_count))
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arduino_sensor_data_list.insert(1,str(log_date))
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arduino_sensor_data_list.insert(2,str(log_time))
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arduino_sensor_data_list.insert(3,str(unix_timestamp))
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#print(arduino_sensor_data_list)
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text_log.insert(END,f'{arduino_sensor_data_list} ,\n')
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text_log.see(tk.END) #for auto scrolling
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with open(log_file_name,'a',newline='') as File_obj:
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csvwriter_obj = csv.writer(File_obj, delimiter = csv_delimiter)
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csvwriter_obj.writerow(arduino_sensor_data_list)
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#print('data acquiring')
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log_count = log_count + 1
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time.sleep(logging_interval)
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elif start_logging_event.is_set() != True:
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serialport_obj.close()
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text_log.insert(END,f'+==================================================+ \n')
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text_log.insert(END,f'Logging Ended \n')
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break
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def read_arduino_sensors(serialport_obj):
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return_list =[0,0,0,0]
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polling_interval = 0.010 #In seconds,to give time for arduino to respond
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serialport_obj.write(b'@')
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time.sleep(polling_interval)
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humidity_value = serialport_obj.readline()
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humidity_value = humidity_value.strip()
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serialport_obj.write(b'#')
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time.sleep(polling_interval)
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soil_value = serialport_obj.readline()
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soil_value = soil_value.strip()
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serialport_obj.write(b'$')
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time.sleep(polling_interval)
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temp_value = serialport_obj.readline()
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temp_value = temp_value.strip()
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serialport_obj.write(b'&')
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time.sleep(polling_interval)
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light_value = serialport_obj.readline()
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light_value = light_value.strip()
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#print(humidity_value,soil_value,temp_value,light_value)
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return_list[0] = humidity_value.decode()
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return_list[1] = soil_value.decode()
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return_list[2] = temp_value.decode()
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return_list[3] = light_value.decode()
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return return_list
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def create_filename_current_date_time():
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# Generate file name using Current Date and Time
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current_local_time = time.localtime() #Get Current date time
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filename = time.strftime("%d_%B_%Y_%Hh_%Mm_%Ss",current_local_time)# 24hour clock format
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filename = 'ard_'+ filename + '_daq_log.csv'
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#print(f'\nCreated Log File -> {filename}')
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return filename
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def tutorial_btn_handler():
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webbrowser.open_new(r'https://www.xanthium.in/multithreading-serial-port-data-acquisition-to-csv-file-using-producer-consumer-pattern-python')
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def start_log_btn_handler():
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start_logging_event.set()
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serialport_name = port_no_entry.get()
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t1 = threading.Thread(target = acquire_arduino_data,args=(serialport_name,baud_rate,log_int))
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t1.start()
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def stop_log_btn_handler():
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start_logging_event.clear()
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def on_select_option_bind_baudrates(e):
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global baud_rate
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baud_rate = int(baud_rates_combo_box.get())
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#print(baud_rate)
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def on_select_option_bind_log_interval(e):
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global log_int
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log_int = float(log_interval_combo_box.get())
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print(log_int)
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start_logging_event = threading.Event()
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# Main Window Creation
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root = ttkb.Window(themename = 'superhero') # theme = superhero
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root.title('SerialPort Datalogging to CSV file')
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root.geometry('650x660') # Width X Height
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#Labels for naming boxes
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head_label = ttkb.Label(text = 'Python Serial Port CSV Datalogger',font = ('Helvetica',15),bootstyle='light')
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head_label.place(x=95,y=10)
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website_label = ttkb.Label(text = 'www.xanthium.in',font = ('Helvetica',10),bootstyle='warning')
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website_label.place(x=230,y=45)
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serialport_label = ttkb.Label(text = 'Select Port',bootstyle = 'light')
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serialport_label.place(x=20,y=90)
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baudrate_label = ttkb.Label(text = 'Baudrate',bootstyle = 'light')
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baudrate_label.place(x=220,y=90)
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lograte_label = ttkb.Label(text = 'Log Interval (Seconds)',bootstyle = 'light')
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lograte_label.place(x=440,y=90)
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#Create COM portEntry Widget
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port_no_entry = ttkb.Entry(root)
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port_no_entry.insert(0,'COMx')
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port_no_entry.place(x=20,y=120)
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#create Combobox for baudrates
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baud_rates_combo_box = ttkb.Combobox(values = baudrates)
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baud_rates_combo_box.place(x=220,y=120)
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baud_rates_combo_box.current(0)#set the default value on combobox
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#bind the combobox
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baud_rates_combo_box.bind('<<ComboboxSelected>>',on_select_option_bind_baudrates)
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#create Combobox for logging interval
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log_interval_combo_box = ttkb.Combobox(values = log_interval)
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log_interval_combo_box.place(x=440,y=120)
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log_interval_combo_box.current(0)#set the default value on combobox
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#bind the combobox
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log_interval_combo_box.bind('<<ComboboxSelected>>',on_select_option_bind_log_interval)
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#create button for controlling data acquisition and logging
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start_log_btn = ttkb.Button(text = 'Start Logging' ,command = start_log_btn_handler ).place(x=20, y=175)
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stop_log_btn = ttkb.Button(text = 'Stop Logging' ,command = stop_log_btn_handler ).place(x=220,y=175)
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tutorial_btn = ttkb.Button(text = 'Online Web Tutorial' ,command = tutorial_btn_handler ).place(x=440,y=175)
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# Scrollable text box for CSV file name
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file_loc_label = ttkb.Label(text = 'CSV file Name and Location',bootstyle = 'light').place(x=20,y=225)
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csv_filename_loc = ScrolledText(root,height=2,width=74,wrap = WORD,autohide=False,)
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csv_filename_loc.place(x=20,y=250)
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# Define the font family and font size
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font_family = 'Helvetica'
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font_size = 10
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log_label = ttkb.Label(text = 'Logging',bootstyle = 'light').place(x=20,y=318)
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text_log = ScrolledText(root,height=15,width=66,wrap = WORD,autohide=False,font=(font_family, font_size))
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text_log.place(x=20,y=340)
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text_log.insert(END,tutorial_text)
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root.mainloop()

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