from time import sleep
import network
import utelegram


# Importar Credenciales Wifi y Token Telegram

from config import utelegram_config, wifi_config, usmartpot_config

# Importar clases de sensores
from sensors import (
    LightSensor,
    PHSensor,
    TDSSensor,
    HumiditySoilSensor,
    AtmosphereSensor,
)

from actuators import (
    WaterPump,
    UVLight,

)

# Importar funciones
from utilitys import (
    print_table,
    send_msg,
    send_record
)

# Importar LCD Display
from display import LCDDisplay

# Importar manejador
import usmartpot

# Controlar si se debe enviar el mensaje
should_send_msg = False

if __name__ == "__main__":
    # Instancia de cada sensor digital
    dht_sensor = AtmosphereSensor(15)

    # Instancia de cada sensor ADC
    light_sensor = LightSensor(34)
    ph_sensor = PHSensor(35)
    tds_sensor = TDSSensor(32)
    humidity_soil_sensor = HumiditySoilSensor(33)

    # Instancia de actuadores
    water_pump = WaterPump(19)
    uv_light = UVLight(18)

    # Instancia de LCDDisplay con pines scl y sda
    lcd_display = LCDDisplay(scl_pin=16, sda_pin=17)  # Pines I2C para scl y sda

    # Mostrar mensaje de conexión WiFi
    lcd_display.show_wifi_connecting()

    # Configuración inicial de WiFi y pines
    sta_if = network.WLAN(network.STA_IF)
    sta_if.active(True)
    sta_if.connect(wifi_config['ssid'], wifi_config['password'])

    # Definir Bot
    bot = None

    # Espera activa hasta 20 segundos para conectar
    for _ in range(80):
        if sta_if.isconnected():
            print('WiFi Conectado')
            lcd_display.show_online_status()
            try:
                bot = usmartpot.Ubot(usmartpot_config['email'],usmartpot_config['password'])
                should_send_msg = True
                print('Bot inicializado correctamente')
            except Exception as e:
                print(f"Error al inicializar el bot: {e}")
            break
        print('Conectando a WiFi...')
        lcd_display.show_wifi_spinner()
        sleep(0.25)
    else:
        print('No conectado - abortando')


    # Mostrar en Display LCD
    lcd_display.show_welcome_message()
    sleep(5)

    # Enviar datos de los sensores cada 60 segundos
    while True:
        # Leer valores de los sensores
        dht_data = dht_sensor.read_value()
        temp = dht_data["temperature"]
        humidity_air = dht_data["humidity"]
        light = light_sensor.read_light()
        ph = ph_sensor.read_ph()
        tds = tds_sensor.read_tds()
        humidity_soil = humidity_soil_sensor.read_soil_humidity()

        # Imprimir los valores en formato tabla
        print_table(temp, humidity_air, light, ph, tds, humidity_soil)

        # Mostrar los datos en el display LCD
        lcd_display.display_sensor_data(temp, humidity_air, light, ph, tds, humidity_soil)

        # Enviar mensaje si el bot está conectado y la variable `should_send_msg` es True
        if should_send_msg:
            send_record(bot, usmartpot_config['crop'], temp, humidity_air, light, ph, tds, humidity_soil)
            sleep(60)
        else:
            sleep(60) # Esperar 60 segundos si el bot no fue iniciado

main.py

diagram.json

import time
import gc
import ujson
import urequests


class ubot:
    
    def __init__(self, token, offset=0):
        self.url = 'https://api.telegram.org/bot' + token
        self.commands = {}
        self.default_handler = None
        self.message_offset = offset
        self.sleep_btw_updates = 3

        messages = self.read_messages()
        if messages:
            if self.message_offset==0:
                self.message_offset = messages[-1]['update_id']
            else:
                for message in messages:
                    if message['update_id'] >= self.message_offset:
                        self.message_offset = message['update_id']
                        break


    def send(self, chat_id, text, parse_mode='Markdown'):
        data = {'chat_id': chat_id, 'text': text, 'parse_mode': parse_mode}
        try:
            headers = {'Content-type': 'application/json', 'Accept': 'text/plain'}
            response = urequests.post(self.url + '/sendMessage', json=data, headers=headers)
            print(response.headers)
            response.close()
            return True
        except:
            return False

    def read_messages(self):
        result = []
        self.query_updates = {
            'offset': self.message_offset + 1,
            'limit': 1,
            'timeout': 30,
            'allowed_updates': ['message']}

        try:
            update_messages = urequests.post(self.url + '/getUpdates', json=self.query_updates).json() 
            if 'result' in update_messages:
                for item in update_messages['result']:
                    result.append(item)
            return result
        except (ValueError):
            return None
        except (OSError):
            print("OSError: request timed out")
            return None

    def listen(self, limit):
        start_time = time.time()  # Guardar el tiempo de inicio
        while True:
            current_time = time.time()  # Obtener el tiempo actual
            elapsed_time = current_time - start_time  # Calcular el tiempo transcurrido
            
            if elapsed_time > limit:  # Si se ha superado el límite de tiempo
                break  # Salir del bucle


            self.read_once()
            time.sleep(self.sleep_btw_updates)
            gc.collect()

    def read_once(self):
        messages = self.read_messages()
        if messages:
            if self.message_offset==0:
                self.message_offset = messages[-1]['update_id']
                self.message_handler(messages[-1])
            else:
                for message in messages:
                    if message['update_id'] >= self.message_offset:
                        self.message_offset = message['update_id']
                        self.message_handler(message)
                        break
    
    def register(self, command, handler):
        self.commands[command] = handler

    def set_default_handler(self, handler):
        self.default_handler = handler

    def set_sleep_btw_updates(self, sleep_time):
        self.sleep_btw_updates = sleep_time

    def message_handler(self, message):
        if 'text' in message['message']:
            parts = message['message']['text'].split(' ')
            if parts[0] in self.commands:
                self.commands[parts[0]](message)
            else:
                if self.default_handler:
                    self.default_handler(message)



utelegram.py

wifi_config = {
    'ssid':"Wokwi-GUEST",
    'password':''
}

utelegram_config = {
    'token': '7163313830:AAEaTCJurbI2EGRSEcV3vmRqjCBynzfGLIw',
    'chat': '-4519421954'
}

usmartpot_config = {
    'email': 'sebastian.lopez@example.com',
    'password': 'Sebastian123',
    'crop':'6748fd26a0bb1f11f6a1d785'
}

config.py

from machine import ADC, Pin
import dht

class ADCSensor:
    def __init__(self, pin_num, adc_bits=12, attenuation=ADC.ATTN_11DB):
        self.pin = Pin(pin_num)
        self.adc = ADC(self.pin)
        self.adc.width(adc_bits)  # Configurar la resolución del ADC
        self.adc.atten(attenuation)  # Configurar la atenuación

    def read_value(self):
        try:
            value = self.adc.read()
            print(f"Raw value from pin GPIO{self.pin}: {value}")
            return value
        except OSError as e:
            print(f"Error reading value on GPIO{self.pin}: {e}")
            return None

    def map_value(self, value, from_low, from_high, to_low, to_high):
        return (value - from_low) * (to_high - to_low) / (from_high - from_low) + to_low

# Clases para cada sensor ADC
class LightSensor(ADCSensor):
    def read_light(self):
        raw_value = self.read_value()
        if raw_value is not None:
            return self.map_value(raw_value, 0, 4095, 0, 1000)
        else:
            print("Failed to read Light value")
            return None

class PHSensor(ADCSensor):
    def read_ph(self):
        raw_value = self.read_value()
        if raw_value is not None:
            return self.map_value(raw_value, 0, 4095, 0, 14)
        else:
            print("Failed to read pH value")
            return None

class TDSSensor(ADCSensor):
    def read_tds(self):
        raw_value = self.read_value()
        if raw_value is not None:
            return self.map_value(raw_value, 0, 4095, 0, 1000)
        else:
            print("Failed to read TDS value")
            return None

class HumiditySoilSensor(ADCSensor):
    def read_soil_humidity(self):
        raw_value = self.read_value()
        if raw_value is not None:
            return self.map_value(raw_value, 0, 4095, 0, 100)
        else:
            print("Failed to read Soil Humidity value")
            return None

class DigitalSensor:
    def __init__(self, pin_num):
        self.pin = Pin(pin_num)

    def read_value(self):
        raise NotImplementedError("This method should be overridden in subclasses")

class AtmosphereSensor(DigitalSensor):
    def __init__(self, pin_num):
        super().__init__(pin_num)
        self.sensor = dht.DHT22(self.pin)

    def read_value(self):
        try:
            self.sensor.measure()
            temp = self.sensor.temperature()
            humidity = self.sensor.humidity()
            return {"temperature": temp, "humidity": humidity}
        except OSError as e:
            print(f"Error reading DHT22 sensor on GPIO{self.pin}: {e}")
            return None


sensors.py

from time import localtime

# Códigos de color ANSI para impresión en consola
RED = '\033[91m'
GREEN = '\033[92m'
YELLOW = '\033[93m'
BLUE = '\033[94m'
MAGENTA = '\033[95m'
CYAN = '\033[96m'
RESET = '\033[0m'



# Función para formatear la fecha y hora actual
def get_current_time():
    current_time = localtime()  # Obtiene la hora local
    return f"{current_time[0]}-{current_time[1]:02}-{current_time[2]:02} {current_time[3]:02}:{current_time[4]:02}:{current_time[5]:02}"

def print_table(temp, humidity_air, light, ph, tds, humidity_soil):
    # Encabezado de la tabla
    print(f"\n+--------------+------------------------+")
    print(f"|         " + get_current_time() + "           |")
    print(f"+--------------+------------------------+")
    print(f"| Sensor       | Valor                  |")
    print(f"+--------------+------------------------+")
    
    # Fila para temperatura
    if temp is not None:
        temp_display = f"{RED}{temp:7.2f}°C{RESET:<17}"
    else:
        temp_display = f"{RED}N/A{RESET:<17}"
    print(f"| Temp         | {temp_display} |")
    
    # Fila para humedad del aire
    if humidity_air is not None:
        humidity_air_display = f"{BLUE}{humidity_air:7.2f}%{RESET:<18}"
    else:
        humidity_air_display = f"{BLUE}N/A{RESET:<18}"
    print(f"| Humedad Aire | {humidity_air_display} |")
    
    # Fila para luz
    if light is not None:
        light_display = f"{YELLOW}{light:7.2f} lux{RESET:<15}"
    else:
        light_display = f"{YELLOW}N/A{RESET:<15}"
    print(f"| Luz          | {light_display} |")
    
    # Fila para pH
    if ph is not None:
        ph_display = f"{GREEN}{ph:7.2f}{RESET:<19}"
    else:
        ph_display = f"{GREEN}N/A{RESET:<19}"
    print(f"| pH           | {ph_display} |")
    
    # Fila para TDS
    if tds is not None:
        tds_display = f"{CYAN}{tds:7.2f} ppm{RESET:<15}"
    else:
        tds_display = f"{CYAN}N/A{RESET:<15}"
    print(f"| TDS          | {tds_display} |")
    
    # Fila para humedad del suelo
    if humidity_soil is not None:
        humidity_soil_display = f"{MAGENTA}{humidity_soil:7.2f}%{RESET:<18}"
    else:
        humidity_soil_display = f"{MAGENTA}N/A{RESET:<18}"
    print(f"| Humedad Suelo| {humidity_soil_display} |")
    
    # Línea de cierre
    print(f"+--------------+------------------------+\n")

def send_msg(bot, chat_id, temp, humidity_air, light, ph, tds, humidity_soil):
    # Crear mensaje con los datos de los sensores
    sensor_data = (
        f"*Sensor Data:* \n",
        f"*Temp:* {temp:.2f}°C\n" if temp is not None else "*Temp:* N/A\n",
        f"*Humedad Aire:* {humidity_air:.2f}%\n" if humidity_air is not None else "*Humedad Aire:* N/A\n",
        f"*Luz:* {light:.2f} lux\n" if light is not None else "*Luz:* N/A\n",
        f"*pH:* {ph:.2f}\n" if ph is not None else "*pH:* N/A\n",
        f"*TDS:* {tds:.2f} ppm\n" if tds is not None else "*TDS:* N/A\n",
        f"*Humedad Suelo:* {humidity_soil:.2f}%\n" if humidity_soil is not None else "*Humedad Suelo:* N/A\n"
    )

    # Unir la lista en una sola cadena
    formatted_message = "".join(sensor_data)

    try:
        bot.send(chat_id, formatted_message)
        print("Mensaje enviado correctamente")
    except Exception as e:
        print(f"Error al enviar el mensaje: {e}")

def send_record(ubot, crop_id, temp, humidity_air, light, ph, tds, humidity_soil):
    """Envía un registro con los datos de sensores a la API SmartPot"""

    
    # Crear las medidas
    measures = {
        "atmosphere": str(temp),
        "brightness": str(light),
        "temperature": str(temp),
        "ph": str(ph),
        "tds": str(tds),
        "humidity": str(humidity_air)
    }

    try:
        ubot.create_record(crop_id, measures)  
    except Exception as e:
        print(f"Error al enviar el registro: {e}")

utilitys.py

from machine import Pin

class Actuator:
    def __init__(self, pin_num):
        self.pin = Pin(pin_num, Pin.OUT)
        self.state = False  # False means OFF, True means ON

    def turn_on(self):
        self.pin.on()  # Activate the actuator
        self.state = True
        print(f"{self.__class__.__name__} turned ON")

    def turn_off(self):
        self.pin.off()  # Deactivate the actuator
        self.state = False
        print(f"{self.__class__.__name__} turned OFF")

    def get_state(self):
        return "ON" if self.state else "OFF"

# Class for Water Pump
class WaterPump(Actuator):
    def __init__(self, pin_num):
        super().__init__(pin_num)

# Class for UV Light
class UVLight(Actuator):
    def __init__(self, pin_num):
        super().__init__(pin_num)

actuators.py

"""Implements a HD44780 character LCD connected via PCF8574 on I2C. 
   This was tested with: https://www.wemos.cc/product/d1-mini.html""" 
from lcd_api import LcdApi 
from machine import I2C 
from time import sleep_ms 
# The PCF8574 has a jumper selectable address: 0x20 - 0x27 
#DEFAULT_I2C_ADDR = 0x20 
# Defines shifts or masks for the various LCD line attached to the PCF8574 
MASK_RS = 0x01 
MASK_RW = 0x02 
MASK_E = 0x04 
SHIFT_BACKLIGHT = 3 
SHIFT_DATA = 4 
class I2cLcd(LcdApi): 
    """Implements a HD44780 character LCD connected via PCF8574 on I2C.""" 
    def __init__(self, i2c, i2c_addr, num_lines, num_columns): 
        self.i2c = i2c 
        self.i2c_addr = i2c_addr 
        self.i2c.writeto(self.i2c_addr, bytearray([0])) 
        sleep_ms(20)   # Allow LCD time to powerup 
        # Send reset 3 times 
        self.hal_write_init_nibble(self.LCD_FUNCTION_RESET) 
        sleep_ms(5)    # need to delay at least 4.1 msec 
        self.hal_write_init_nibble(self.LCD_FUNCTION_RESET) 
        sleep_ms(1) 
        self.hal_write_init_nibble(self.LCD_FUNCTION_RESET) 
        sleep_ms(1) 
        # Put LCD into 4 bit mode 
        self.hal_write_init_nibble(self.LCD_FUNCTION) 
        sleep_ms(1) 
        LcdApi.__init__(self, num_lines, num_columns) 
        cmd = self.LCD_FUNCTION 
        if num_lines > 1: 
            cmd |= self.LCD_FUNCTION_2LINES 
        self.hal_write_command(cmd) 
    def hal_write_init_nibble(self, nibble): 
        """Writes an initialization nibble to the LCD. 
        This particular function is only used during initialization. 
        """ 
        byte = ((nibble >> 4) & 0x0f) << SHIFT_DATA 
        self.i2c.writeto(self.i2c_addr, bytearray([byte | MASK_E])) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte])) 
    def hal_backlight_on(self): 
        """Allows the hal layer to turn the backlight on.""" 
        self.i2c.writeto(self.i2c_addr, bytearray([1 << SHIFT_BACKLIGHT])) 
    def hal_backlight_off(self): 
        """Allows the hal layer to turn the backlight off.""" 
        self.i2c.writeto(self.i2c_addr, bytearray([0])) 
    def hal_write_command(self, cmd): 
        """Writes a command to the LCD. 
        Data is latched on the falling edge of E. 
        """ 
        byte = ((self.backlight << SHIFT_BACKLIGHT) | (((cmd >> 4) & 0x0f) << SHIFT_DATA)) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte | MASK_E])) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte])) 
        byte = ((self.backlight << SHIFT_BACKLIGHT) | ((cmd & 0x0f) << SHIFT_DATA)) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte | MASK_E])) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte])) 
        if cmd <= 3: 
            # The home and clear commands require a worst case delay of 4.1 msec 
            sleep_ms(5) 
    def hal_write_data(self, data): 
        """Write data to the LCD.""" 
        byte = (MASK_RS | (self.backlight << SHIFT_BACKLIGHT) | (((data >> 4) & 0x0f) << SHIFT_DATA)) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte | MASK_E])) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte])) 
        byte = (MASK_RS | (self.backlight << SHIFT_BACKLIGHT) | ((data & 0x0f) << SHIFT_DATA)) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte | MASK_E])) 
        self.i2c.writeto(self.i2c_addr, bytearray([byte]))

i2c_lcd.py

"""Provides an API for talking to HD44780 compatible character LCDs."""

import time

class LcdApi:
    """Implements the API for talking with HD44780 compatible character LCDs.
    This class only knows what commands to send to the LCD, and not how to get
    them to the LCD.

    It is expected that a derived class will implement the hal_xxx functions.
    """

    # The following constant names were lifted from the avrlib lcd.h
    # header file, however, I changed the definitions from bit numbers
    # to bit masks.
    #
    # HD44780 LCD controller command set

    LCD_CLR = 0x01              # DB0: clear display
    LCD_HOME = 0x02             # DB1: return to home position

    LCD_ENTRY_MODE = 0x04       # DB2: set entry mode
    LCD_ENTRY_INC = 0x02        # --DB1: increment
    LCD_ENTRY_SHIFT = 0x01      # --DB0: shift

    LCD_ON_CTRL = 0x08          # DB3: turn lcd/cursor on
    LCD_ON_DISPLAY = 0x04       # --DB2: turn display on
    LCD_ON_CURSOR = 0x02        # --DB1: turn cursor on
    LCD_ON_BLINK = 0x01         # --DB0: blinking cursor

    LCD_MOVE = 0x10             # DB4: move cursor/display
    LCD_MOVE_DISP = 0x08        # --DB3: move display (0-> move cursor)
    LCD_MOVE_RIGHT = 0x04       # --DB2: move right (0-> left)

    LCD_FUNCTION = 0x20         # DB5: function set
    LCD_FUNCTION_8BIT = 0x10    # --DB4: set 8BIT mode (0->4BIT mode)
    LCD_FUNCTION_2LINES = 0x08  # --DB3: two lines (0->one line)
    LCD_FUNCTION_10DOTS = 0x04  # --DB2: 5x10 font (0->5x7 font)
    LCD_FUNCTION_RESET = 0x30   # See "Initializing by Instruction" section

    LCD_CGRAM = 0x40            # DB6: set CG RAM address
    LCD_DDRAM = 0x80            # DB7: set DD RAM address

    LCD_RS_CMD = 0
    LCD_RS_DATA = 1

    LCD_RW_WRITE = 0
    LCD_RW_READ = 1

    def __init__(self, num_lines, num_columns):
        self.num_lines = num_lines
        if self.num_lines > 4:
            self.num_lines = 4
        self.num_columns = num_columns
        if self.num_columns > 40:
            self.num_columns = 40
        self.cursor_x = 0
        self.cursor_y = 0
        self.implied_newline = False
        self.backlight = True
        self.display_off()
        self.backlight_on()
        self.clear()
        self.hal_write_command(self.LCD_ENTRY_MODE | self.LCD_ENTRY_INC)
        self.hide_cursor()
        self.display_on()

    def clear(self):
        """Clears the LCD display and moves the cursor to the top left
        corner.
        """
        self.hal_write_command(self.LCD_CLR)
        self.hal_write_command(self.LCD_HOME)
        self.cursor_x = 0
        self.cursor_y = 0

    def show_cursor(self):
        """Causes the cursor to be made visible."""
        self.hal_write_command(self.LCD_ON_CTRL | self.LCD_ON_DISPLAY |
                               self.LCD_ON_CURSOR)

    def hide_cursor(self):
        """Causes the cursor to be hidden."""
        self.hal_write_command(self.LCD_ON_CTRL | self.LCD_ON_DISPLAY)

    def blink_cursor_on(self):
        """Turns on the cursor, and makes it blink."""
        self.hal_write_command(self.LCD_ON_CTRL | self.LCD_ON_DISPLAY |
                               self.LCD_ON_CURSOR | self.LCD_ON_BLINK)

    def blink_cursor_off(self):
        """Turns on the cursor, and makes it no blink (i.e. be solid)."""
        self.hal_write_command(self.LCD_ON_CTRL | self.LCD_ON_DISPLAY |
                               self.LCD_ON_CURSOR)

    def display_on(self):
        """Turns on (i.e. unblanks) the LCD."""
        self.hal_write_command(self.LCD_ON_CTRL | self.LCD_ON_DISPLAY)

    def display_off(self):
        """Turns off (i.e. blanks) the LCD."""
        self.hal_write_command(self.LCD_ON_CTRL)

    def backlight_on(self):
        """Turns the backlight on.

        This isn't really an LCD command, but some modules have backlight
        controls, so this allows the hal to pass through the command.
        """
        self.backlight = True
        self.hal_backlight_on()

    def backlight_off(self):
        """Turns the backlight off.

        This isn't really an LCD command, but some modules have backlight
        controls, so this allows the hal to pass through the command.
        """
        self.backlight = False
        self.hal_backlight_off()

    def move_to(self, cursor_x, cursor_y):
        """Moves the cursor position to the indicated position. The cursor
        position is zero based (i.e. cursor_x == 0 indicates first column).
        """
        self.cursor_x = cursor_x
        self.cursor_y = cursor_y
        addr = cursor_x & 0x3f
        if cursor_y & 1:
            addr += 0x40    # Lines 1 & 3 add 0x40
        if cursor_y & 2:    # Lines 2 & 3 add number of columns
            addr += self.num_columns
        self.hal_write_command(self.LCD_DDRAM | addr)

    def putchar(self, char):
        """Writes the indicated character to the LCD at the current cursor
        position, and advances the cursor by one position.
        """
        if char == '\n':
            if self.implied_newline:
                # self.implied_newline means we advanced due to a wraparound,
                # so if we get a newline right after that we ignore it.
                self.implied_newline = False
            else:
                self.cursor_x = self.num_columns
        else:
            self.hal_write_data(ord(char))
            self.cursor_x += 1
        if self.cursor_x >= self.num_columns:
            self.cursor_x = 0
            self.cursor_y += 1
            self.implied_newline = (char != '\n')
        if self.cursor_y >= self.num_lines:
            self.cursor_y = 0
        self.move_to(self.cursor_x, self.cursor_y)

    def putstr(self, string):
        """Write the indicated string to the LCD at the current cursor
        position and advances the cursor position appropriately.
        """
        for char in string:
            self.putchar(char)

    def custom_char(self, location, charmap):
        """Write a character to one of the 8 CGRAM locations, available
        as chr(0) through chr(7).
        """
        location &= 0x7
        self.hal_write_command(self.LCD_CGRAM | (location << 3))
        self.hal_sleep_us(40)
        for i in range(8):
            self.hal_write_data(charmap[i])
            self.hal_sleep_us(40)
        self.move_to(self.cursor_x, self.cursor_y)

    def hal_backlight_on(self):
        """Allows the hal layer to turn the backlight on.

        If desired, a derived HAL class will implement this function.
        """
        pass

    def hal_backlight_off(self):
        """Allows the hal layer to turn the backlight off.

        If desired, a derived HAL class will implement this function.
        """
        pass

    def hal_write_command(self, cmd):
        """Write a command to the LCD.

        It is expected that a derived HAL class will implement this
        function.
        """
        raise NotImplementedError

    def hal_write_data(self, data):
        """Write data to the LCD.

        It is expected that a derived HAL class will implement this
        function.
        """
        raise NotImplementedError

    # This is a default implementation of hal_sleep_us which is suitable
    # for most micropython implementations. For platforms which don't
    # support `time.sleep_us()` they should provide their own implementation
    # of hal_sleep_us in their hal layer and it will be used instead.
    def hal_sleep_us(self, usecs):
        """Sleep for some time (given in microseconds)."""
        time.sleep_us(usecs)  # NOTE this is not part of Standard Python library, specific hal layers will need to override this

lcd_api.py

from i2c_lcd import I2cLcd
from machine import I2C,Pin
class LCDDisplay:
    def __init__(self, scl_pin, sda_pin, address=0x27, rows=4, cols=20, freq=400000):
        # Configuración del bus I2C y el LCD
        self.i2c = I2C(scl=Pin(scl_pin), sda=Pin(sda_pin), freq=freq)
        self.lcd = I2cLcd(self.i2c, address, rows, cols)
        self.glyphs = "\xa1\xa5\xdb"
        self.position = 0

    def print(self, text, row, col):
        self.lcd.move_to(col, row)
        self.lcd.putstr(text)

    def show_welcome_message(self):
        self.lcd.clear()
        self.print("Welcome to", 1, 4)
        self.print("SmartPot ESP32", 2, 2)

    def show_wifi_connecting(self):
        self.lcd.clear()
        self.print("Connecting to", 1, 2)
        self.print("WiFi", 2, 6)

    def show_wifi_spinner(self):
        self.print(self.glyphs[self.position], 2, 15)
        self.position = (self.position + 1) % len(self.glyphs)

    def show_online_status(self):
        self.lcd.clear()
        self.print("Online", 1, 6)

    def display_sensor_data(self, temp, humidity_air, light, ph, tds, humidity_soil):
        self.lcd.clear()
        self.print(f"Amb {temp:3.0f} C ^ {humidity_air:3.0f}%", 0, 0)  # Línea 1
        self.print(f"Luz {light:3.0f} lux", 1, 0)  # Línea 2
        self.print(f"Hum {humidity_soil:3.0f}% ^ pH {ph:3.0f}", 2, 0)  # Línea 3
        self.print(f"TDS {tds:4.0f} ppm", 3, 0)  # Línea 4


display.py

import ujson
import urequests

class Ubot:
    def __init__(self, email, password):
        self.base_url_mw = "smartpot-middleware.onrender.com"
        self.token = None
        self.login(email, password)
        

    def login(self, email, password):
        if not isinstance(email, str) or not isinstance(password, str):
            raise TypeError("El email y la contraseña deben ser cadenas de texto.")
        
        if "@" not in email or "." not in email.split('@')[-1]:
            raise ValueError("El email proporcionado no es válido.")
        
        if not email or not password:
            raise ValueError("El email y la contraseña no pueden estar vacíos.")
        

        data = f'<credentials><email>{email}</email><password>{password}</password></credentials>'
        
        headers = {
            'User-Agent': 'SmartPotClient/1.0.0 (https://wokwi.com/)',
            'Content-Type': 'application/xml',
            'Accept': 'application/json',
        }

        try:
            response = urequests.post(f"https://{self.base_url_mw}/login", data=data, headers=headers)
            response_data = response.json()
            
            if "token" not in response_data:
                raise KeyError(response_data["message"])
            
            self.token = response_data["token"]
        except Exception as e:
            raise RuntimeError(f"{e}")
    
    def create_record(self, crop_id, measures):
        """Crea un registro con las medidas proporcionadas para un cultivo específico en formato XML (sin xml.etree.ElementTree)"""
        if not self.token:
            print("No se puede hacer la solicitud sin un token válido.")
            return
        
        if not crop_id or not isinstance(measures, dict):
            raise ValueError("El ID del cultivo y las medidas deben ser válidos.")
        
        xml_str = "<root>"
        xml_str += "<record>"
        
        for measure, value in measures.items():
            xml_str += f"<{measure}>{value}</{measure}>"
        
        xml_str += "</record>"
        
        xml_str += f"<crop>{crop_id}</crop>"
        xml_str += f"<token>{self.token}</token>"

        xml_str += "</root>" 

        headers = {
            'User-Agent': 'SmartPotClient/1.0.0 (https://wokwi.com/)',
            'Content-Type': 'application/xml',
            'Accept': 'application/json',
            'Cache-Control': 'no-cache',
        }

        try:
            response = urequests.post(f'https://{self.base_url_mw}/create_record', data=xml_str, headers=headers)

            if response.status_code == 201:
                response_data = response.json()
                print(f"Registro creado exitosamente")
            else:
                print(f"Error en la solicitud. Status code: {response.status_code}")
                print(response.headers)
                print(response.text)
        except Exception as e:
            print(f"Error durante la solicitud POST: {e}")
