helper.py

import time
import usocket
import socket
from time import time, sleep
import network
import time
from umqtt.simple import MQTTClient
import machine
from picozero import pico_temp_sensor
from machine import Pin
import micropython
import ustruct as struct
import json
import random
import socket
import uos
import time
from machine import I2C, Pin
from collections import deque



Self_Name = 'PW_1'
SSID = ''
PASSWORD = ''
ssidRouter     = ''    #Enter the router name
passwordRouter = '' #Enter the router password
ssidAP         = 'Pico W'      #Enter the AP name
passwordAP     = '12345678'    #Enter the AP password
local_IP       = '192.168.4.150'
gateway        = '192.168.4.1'
subnet         = '255.255.255.0'
dns            = '8.8.8.8'

adcpin = 4
sensor = machine.ADC(adcpin)
sock = usocket
Mqtt_Broker = ""

USER = ""
#PASSWORD = ''
wlan = network.WLAN(network.STA_IF)
sta_if = network.WLAN(network.STA_IF)
ap_if = network.WLAN(network.AP_IF)


def read_json_file(file_path):
    """
    Function for reading json file
    """
    try:
        with open(file_path, "r") as file:
            data = json.load(file)
    except:
        return None
    else:
        return data


def write_json_file(file_path, data):
    """
    Function for writing json file
    """
    try:
        with open(file_path, "w") as file:
            json.dump(data, file)
    except:
        return None
    else:
        return data


def GetTemperature():
    adc_value = sensor.read_u16()
    volt = (3.3/65535) * adc_value
    temperature = 27 - (volt - 0.706)/0.001721
    temp = str(round(temperature, 1))
#    timestamp = datetime.now().isoformat()
    print(temp)
    return temp


def connect_to_wifi():
    SSID = ''
    PASSWORD = ''
    wlan.active(True)
    wlan.connect(SSID, PASSWORD)
    print("Connecting to Wi-Fi...")
    while not wlan.isconnected():
        time.sleep(1)
        print("Waiting for connection...")
    else:
        print("Wi-Fi connected!")
        print("IP address:", wlan.ifconfig())


def to_json(Self_Name, Temperature):

    sensor_data = {
        "Self Name": Self_Name,
        "temperature": Temperature,
        "Timestamp": timestamp
    }

    # Convert the dictionary to a JSON string
    json_data = json.dumps(sensor_data)
    return json_data


def WifiServer(ssidAP,passwordAP):
    local_IP = '192.168.1.1'
    gateway = '192.168.1.10'
    subnet = '255.255.255.0'
    dns = '8.8.8.8'
    sta_if = network.WLAN(network.STA_IF)
    ap_if = network.WLAN(network.AP_IF)
    ap_if.ifconfig([local_IP,gateway,subnet,dns])
    print("Setting soft-AP  ... ")
    ap_if.config(essid=ssidAP, password=passwordAP)
    ap_if.active(True)
    print('Success, IP address:', ap_if.ifconfig())
    open_socket()
    print("Setup End\n")



def open_socket():
    # Open a socket
    ip = '192.168.1.10'
    address = (ip, 8080)
    connection = socket.socket()
    connection.bind(address)
    connection.listen(1)
    return connection


def STA_Setup(ssidRouter,passwordRouter):
    print("Setting soft-STA  ... ")
    if not sta_if.isconnected():
        print('connecting to',ssidRouter)
        sta_if.active(True)
        sta_if.connect(ssidRouter,passwordRouter)
        while not sta_if.isconnected():
            pass
    print('Connected, IP address:', sta_if.ifconfig())
    print("Setup End")


def AP_Setup(ssidAP,passwordAP):
    ap_if.ifconfig([local_IP,gateway,subnet,dns])
    print("Setting soft-AP  ... ")
    ap_if.config(essid=ssidAP, password=passwordAP)
    ap_if.active(True)
    print('Success, IP address:', ap_if.ifconfig())
    print("Setup End\n")


def write_to_csv(csv_data, filename="PW_1.csv"):
    # Write the CSV data to a file
    with open(filename, "a") as file:
        file.write(csv_data)


def collect_sensor_data():
    # Collect data from the sensor
    Temp = GetTemperature()
    
    # Get the current timestamp
    timestamp = time.time()
    
    # Format timestamp to YYYY-MM-DD HH:MM:SS
    formatted_time = time.localtime(timestamp)
    timestamp_str = "{:04d}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}".format(
        formatted_time[0], formatted_time[1], formatted_time[2], 
        formatted_time[3], formatted_time[4], formatted_time[5]
    )

    # Create a CSV formatted string
    csv_data = "{},{}\n".format(timestamp_str, Temp)
    
    return csv_data