Initial Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

LLM Generation

Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

Output

Here's a Python program for your Raspberry Pi Pico W that checks for MQTT messages while blinking the LED and responds to received messages: 

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from machine import Pin
import network
import time
from umqtt.simple import MQTTClient
import json

# LED setup
led = Pin("LED", Pin.OUT)

# Wi-Fi credentials - replace with your details
WIFI_SSID = "YOUR_WIFI_SSID"
WIFI_PASSWORD = "YOUR_WIFI_PASSWORD"

# MQTT configuration - replace with your broker details
MQTT_BROKER = "YOUR_MQTT_BROKER"
MQTT_PORT = 1883
MQTT_TOPIC = b"your/topic"
MQTT_CLIENT_ID = "pico_client"
MQTT_USERNAME = "YOUR_USERNAME"  # Optional
MQTT_PASSWORD = "YOUR_PASSWORD"  # Optional

def connect_wifi():
    """Connect to WiFi"""
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
    
    # Wait for connection
    max_wait = 10
    while max_wait > 0:
        if wlan.status() < 0 or wlan.status() >= 3:
            break
        max_wait -= 1
        print('waiting for connection...')
        time.sleep(1)
    
    if wlan.status() != 3:
        raise RuntimeError('WiFi connection failed')
    else:
        print('Connected')
        status = wlan.ifconfig()
        print(f'IP: {status[0]}')

def mqtt_callback(topic, msg):
    """Callback function for when a message is received"""
    print(f'Received message on topic {topic}: {msg}')
    # Turn LED on solid for 1 second
    led.on()
    time.sleep(1)
    led.off()

def main():
    # Connect to WiFi
    connect_wifi()
    
    # Connect to MQTT broker
    client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER,
                       port=MQTT_PORT,
                       user=MQTT_USERNAME,
                       password=MQTT_PASSWORD,
                       keepalive=30)
    
    client.set_callback(mqtt_callback)
    
    try:
        client.connect()
        print('Connected to MQTT Broker')
        client.subscribe(MQTT_TOPIC)
        print(f'Subscribed to {MQTT_TOPIC}')
        
        led_state = False
        last_blink = time.ticks_ms()
        blink_interval = 500  # Blink every 500ms
        
        while True:
            # Non-blocking check for MQTT messages
            client.check_msg()
            
            # Blink LED
            current_time = time.ticks_ms()
            if time.ticks_diff(current_time, last_blink) >= blink_interval:
                led_state = not led_state
                led.value(led_state)
                last_blink = current_time
            
            # Small delay to prevent tight loop
            time.sleep_ms(100)
            
    except Exception as e:
        print(f'Error: {e}')
        # In case of error, try to reconnect
        machine.reset()

if __name__ == '__main__':
    while True:
        try:
            main()
        except Exception as e:
            print(f'Main loop error: {e}')
            time.sleep(10)  # Wait before retrying
To use this program: 1. Replace the Wi-Fi credentials (`WIFI_SSID` and `WIFI_PASSWORD`) with your network details. 2. Update the MQTT configuration: - `MQTT_BROKER`: Your MQTT broker address - `MQTT_PORT`: Usually 1883 for non-SSL - `MQTT_TOPIC`: The topic you want to subscribe to - `MQTT_USERNAME` and `MQTT_PASSWORD` if your broker requires authentication 3. Save this as `main.py` on your Pico W. This program will: - Connect to your Wi-Fi network - Connect to the MQTT broker - Subscribe to the specified topic - Blink the onboard LED every 500ms during normal operation - When a message is received, turn the LED solid for 1 second - Automatically attempt to reconnect if there's an error Features: - Non-blocking MQTT message checking - Visual feedback through LED blinking - Error handling and automatic reconnection - Power-efficient with sleep delays The LED will: - Blink regularly to show the program is running - Stay solid for 1 second when a message is received - Return to blinking after processing the message Make sure you have the required libraries installed on your Pico W: - `network` - `umqtt.simple` You can install these using Thonny or by copying the files to your Pico W.

Check if all of the following conditions are true:

Substring Evaluation

Testing if the previous output contains the string STA_IF: True

Substring Evaluation

Testing if the previous output contains the string WLAN: True

Substring Evaluation

Testing if the previous output contains the string set_callback: True

Substring Evaluation

Testing if the previous output contains the string MQTTClient: True

Substring Evaluation

Testing if the previous output contains the string check_msg: True

Final Answer: True

Initial Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

LLM Generation

Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

Output

Here's a Python program for the Raspberry Pi Pico W that checks for MQTT messages while blinking the onboard LED and keeps the LED solid when a message is received: 

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from machine import Pin
import network
import time
from umqtt.simple import MQTTClient
import sys

# LED setup
led = Pin("LED", Pin.OUT)

# Wi-Fi credentials - replace with your details
WIFI_SSID = "your_wifi_ssid"
WIFI_PASSWORD = "your_wifi_password"

# MQTT configuration - replace with your broker details
MQTT_BROKER = "your_mqtt_broker"
MQTT_PORT = 1883
MQTT_TOPIC = b"your/topic"
MQTT_CLIENT_ID = "pico_client"

# Flag to indicate message received
message_received = False

def connect_wifi():
    """Connect to Wi-Fi network"""
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print('Connecting to WiFi...')
        wlan.connect(WIFI_SSID, WIFI_PASSWORD)
        # Wait for connection with timeout
        max_wait = 10
        while max_wait > 0:
            if wlan.isconnected():
                break
            max_wait -= 1
            print('Waiting for connection...')
            time.sleep(1)
        
        if wlan.isconnected():
            print('WiFi connected')
            print('Network config:', wlan.ifconfig())
        else:
            print('WiFi connection failed')
            sys.exit()

def mqtt_callback(topic, msg):
    """Callback function for MQTT messages"""
    global message_received
    print(f'Received message: {msg.decode()} on topic: {topic.decode()}')
    message_received = True

def connect_mqtt():
    """Connect to MQTT broker"""
    client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, port=MQTT_PORT)
    client.set_callback(mqtt_callback)
    try:
        client.connect()
        print('Connected to MQTT broker')
        client.subscribe(MQTT_TOPIC)
        print(f'Subscribed to {MQTT_TOPIC}')
        return client
    except Exception as e:
        print(f'Failed to connect to MQTT broker: {e}')
        sys.exit()

def main():
    global message_received
    
    # Connect to WiFi
    connect_wifi()
    
    # Connect to MQTT broker
    client = connect_mqtt()
    
    led_state = False
    last_blink = time.ticks_ms()
    blink_interval = 500  # LED blink interval in milliseconds
    
    while True:
        try:
            # Check for new MQTT messages (non-blocking)
            client.check_msg()
            
            current_time = time.ticks_ms()
            
            if message_received:
                # Keep LED solid for 1 second when message received
                led.on()
                time.sleep(1)
                message_received = False
            else:
                # Blink LED to show we're still running
                if time.ticks_diff(current_time, last_blink) >= blink_interval:
                    led_state = not led_state
                    led.value(led_state)
                    last_blink = current_time
            
            # Small delay to prevent overwhelming the CPU
            time.sleep(0.01)
            
        except Exception as e:
            print(f'Error: {e}')
            # Try to reconnect
            try:
                client.disconnect()
                time.sleep(5)
                client = connect_mqtt()
            except:
                pass

if __name__ == '__main__':
    main()
To use this program: 1. Replace the following variables with your own values: - `WIFI_SSID`: Your Wi-Fi network name - `WIFI_PASSWORD`: Your Wi-Fi password - `MQTT_BROKER`: Your MQTT broker address - `MQTT_PORT`: Your MQTT broker port (usually 1883) - `MQTT_TOPIC`: The MQTT topic you want to subscribe to - `MQTT_CLIENT_ID`: A unique identifier for your Pico W 2. Make sure you have the required libraries installed on your Pico W: - The `umqtt.simple` library needs to be installed using Thonny or your preferred method Key features of this program: - Connects to Wi-Fi and MQTT broker automatically - Blinks the onboard LED every 500ms to show the program is running - Uses non-blocking MQTT message checking - When a message is received, the LED stays solid for 1 second - Includes basic error handling and reconnection logic - Uses minimal CPU resources with small sleep delays The LED will: - Blink regularly when no messages are being received - Stay solid for 1 second when a message is received - Return to blinking after the 1-second solid period To test it, you can publish messages to your configured MQTT topic using any MQTT client or broker interface, and you should see the LED respond accordingly. Remember to save this as `main.py` on your Pico W if you want it to run automatically when the device powers up.

Check if all of the following conditions are true:

Substring Evaluation

Testing if the previous output contains the string STA_IF: True

Substring Evaluation

Testing if the previous output contains the string WLAN: True

Substring Evaluation

Testing if the previous output contains the string set_callback: True

Substring Evaluation

Testing if the previous output contains the string MQTTClient: True

Substring Evaluation

Testing if the previous output contains the string check_msg: True

Final Answer: True

Initial Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

LLM Generation

Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

Output

Here's a Python program for your Raspberry Pi Pico W that monitors MQTT messages and uses the onboard LED for status indication: 

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from machine import Pin
import network
import time
from umqtt.simple import MQTTClient
import sys

# LED setup
led = Pin("LED", Pin.OUT)

# WiFi credentials - replace with your details
WIFI_SSID = "YOUR_WIFI_SSID"
WIFI_PASSWORD = "YOUR_WIFI_PASSWORD"

# MQTT configuration - replace with your broker details
MQTT_BROKER = "YOUR_MQTT_BROKER"
MQTT_PORT = 1883
MQTT_TOPIC = b"your/topic"
MQTT_CLIENT_ID = "pico_client"

# Flag for message received
message_received = False

def connect_wifi():
    """Connect to WiFi network"""
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    
    print(f"Connecting to {WIFI_SSID}...")
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
    
    # Wait for connection with timeout
    max_wait = 10
    while max_wait > 0:
        if wlan.status() < 0 or wlan.status() >= 3:
            break
        max_wait -= 1
        print("Waiting for connection...")
        time.sleep(1)
    
    if wlan.status() != 3:
        raise RuntimeError('Network connection failed')
    else:
        print('Connected')
        status = wlan.ifconfig()
        print(f'IP: {status[0]}')

def mqtt_callback(topic, msg):
    """Callback function for MQTT messages"""
    global message_received
    print(f"Message received on topic {topic}: {msg}")
    message_received = True

def connect_mqtt():
    """Connect to MQTT broker"""
    client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, port=MQTT_PORT)
    client.set_callback(mqtt_callback)
    client.connect()
    print(f"Connected to MQTT broker at {MQTT_BROKER}")
    client.subscribe(MQTT_TOPIC)
    return client

def main():
    global message_received
    
    # Connect to WiFi
    try:
        connect_wifi()
    except Exception as e:
        print(f"Failed to connect to WiFi: {e}")
        sys.exit(1)
    
    # Connect to MQTT
    try:
        client = connect_mqtt()
    except Exception as e:
        print(f"Failed to connect to MQTT broker: {e}")
        sys.exit(1)
    
    # Main loop
    led_state = False
    last_blink = time.ticks_ms()
    blink_interval = 500  # milliseconds
    
    while True:
        try:
            # Check for MQTT messages (non-blocking)
            client.check_msg()
            
            current_time = time.ticks_ms()
            
            # Handle message received
            if message_received:
                led.on()  # Solid LED
                time.sleep(1)
                message_received = False
                last_blink = current_time
                led_state = False
            
            # Blink LED when no message
            elif time.ticks_diff(current_time, last_blink) >= blink_interval:
                led_state = not led_state
                led.value(led_state)
                last_blink = current_time
            
            # Small delay to prevent tight loop
            time.sleep_ms(10)
            
        except Exception as e:
            print(f"Error in main loop: {e}")
            # Try to reconnect
            try:
                client = connect_mqtt()
            except:
                print("Failed to reconnect")
                time.sleep(5)

if __name__ == "__main__":
    main()
To use this program: 1. Replace the following variables with your own values: - `WIFI_SSID`: Your WiFi network name - `WIFI_PASSWORD`: Your WiFi password - `MQTT_BROKER`: Your MQTT broker address - `MQTT_PORT`: Your MQTT broker port (usually 1883) - `MQTT_TOPIC`: The MQTT topic you want to subscribe to 2. Make sure you have the required libraries installed on your Pico W. You'll need: - `network` (should be built-in) - `umqtt.simple` (you might need to install this) 3. Save this code as `main.py` on your Pico W. The program will: - Connect to your WiFi network - Connect to the MQTT broker - Subscribe to the specified topic - Blink the onboard LED every 500ms while running normally - When a message is received, turn the LED solid for 1 second - Automatically try to reconnect if the connection is lost Features: - Non-blocking MQTT message checking - Visual feedback through the LED - Error handling and reconnection attempts - Clean status messages via serial output To install the required MQTT library, you can use: 
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import mip
mip.install("umqtt.simple")
Or manually upload the library to your Pico W. Note: This code assumes you're using MicroPython on your Pico W. Make sure you have MicroPython installed and properly set up on your device.

Check if all of the following conditions are true:

Substring Evaluation

Testing if the previous output contains the string STA_IF: True

Substring Evaluation

Testing if the previous output contains the string WLAN: True

Substring Evaluation

Testing if the previous output contains the string set_callback: True

Substring Evaluation

Testing if the previous output contains the string MQTTClient: True

Substring Evaluation

Testing if the previous output contains the string check_msg: True

Final Answer: True

Initial Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

LLM Generation

Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

Output

Here's a Python program for your Raspberry Pi Pico W that checks for MQTT messages while blinking the onboard LED and responds to incoming messages: 

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from machine import Pin
import network
import time
from umqtt.simple import MQTTClient
import sys

# LED setup
led = Pin("LED", Pin.OUT)

# Wi-Fi credentials - replace with your details
WIFI_SSID = "your_wifi_ssid"
WIFI_PASSWORD = "your_wifi_password"

# MQTT configuration - replace with your broker details
MQTT_BROKER = "your_mqtt_broker_address"
MQTT_PORT = 1883
MQTT_TOPIC = b"your/topic"
MQTT_CLIENT_ID = "pico_client"

def connect_wifi():
    """Connect to Wi-Fi network"""
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    
    print(f"Connecting to {WIFI_SSID}...")
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
    
    # Wait for connection
    max_wait = 10
    while max_wait > 0:
        if wlan.status() < 0 or wlan.status() >= 3:
            break
        max_wait -= 1
        print("Waiting for connection...")
        time.sleep(1)
    
    if wlan.status() != 3:
        raise RuntimeError('Network connection failed')
    else:
        print('Connected')
        status = wlan.ifconfig()
        print(f'IP: {status[0]}')

def mqtt_callback(topic, msg):
    """Callback function for MQTT messages"""
    print(f"Received message on topic {topic}: {msg}")
    # Turn LED on solid for 1 second
    led.on()
    time.sleep(1)

def main():
    try:
        # Connect to Wi-Fi
        connect_wifi()
        
        # Connect to MQTT broker
        client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, port=MQTT_PORT)
        client.set_callback(mqtt_callback)
        client.connect()
        print("Connected to MQTT broker")
        
        # Subscribe to topic
        client.subscribe(MQTT_TOPIC)
        print(f"Subscribed to {MQTT_TOPIC}")
        
        # Main loop
        led_state = False
        last_toggle = time.ticks_ms()
        toggle_interval = 500  # Blink every 500ms
        
        while True:
            # Check for messages (non-blocking)
            client.check_msg()
            
            # Blink LED (unless solid from message)
            current_time = time.ticks_ms()
            if time.ticks_diff(current_time, last_toggle) >= toggle_interval:
                led_state = not led_state
                led.value(led_state)
                last_toggle = current_time
            
            # Small delay to prevent tight loop
            time.sleep_ms(100)
            
    except Exception as e:
        print(f"Error: {e}")
        sys.print_exception(e)
        # Reset LED to off state
        led.off()
        
if __name__ == "__main__":
    main()
To use this program: 1. Replace the Wi-Fi credentials: - `WIFI_SSID` with your Wi-Fi network name - `WIFI_PASSWORD` with your Wi-Fi password 2. Replace the MQTT configuration: - `MQTT_BROKER` with your MQTT broker address - `MQTT_PORT` with your broker's port (usually 1883) - `MQTT_TOPIC` with the topic you want to subscribe to - `MQTT_CLIENT_ID` with your desired client ID The program will: 1. Connect to your Wi-Fi network 2. Connect to the MQTT broker 3. Subscribe to the specified topic 4. Enter a main loop where it: - Checks for MQTT messages (non-blocking) - Blinks the onboard LED every 500ms - When a message is received, turns the LED solid for 1 second Features: - Non-blocking MQTT check - Visual indication that the program is running (blinking LED) - Visual confirmation of message receipt (solid LED) - Error handling with exception reporting - Reasonable power usage with sleep delays To install this on your Pico W: 1. Make sure you have the required libraries: 
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   import network
   from umqtt.simple import MQTTClient
If `umqtt.simple` is missing, you can install it using: 
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   import mip
   mip.install("umqtt.simple")
2. Save the program as `main.py` on your Pico W 3. Reset the Pico W to start the program The LED will blink continuously while the program is running and waiting for messages, and will stay solid for 1 second when a message is received.

Check if all of the following conditions are true:

Substring Evaluation

Testing if the previous output contains the string STA_IF: True

Substring Evaluation

Testing if the previous output contains the string WLAN: True

Substring Evaluation

Testing if the previous output contains the string set_callback: True

Substring Evaluation

Testing if the previous output contains the string MQTTClient: True

Substring Evaluation

Testing if the previous output contains the string check_msg: True

Final Answer: True

Initial Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

LLM Generation

Query

Write a python program that I can use to run on my raspberry pi pico w zero that will check for mqtt messages. Don't block, and blink the LED on every loop iteration so I know it's polling. When it gets a message then set the LED solid for a second.

Output

Here's a Python program for your Raspberry Pi Pico W that checks for MQTT messages while blinking the onboard LED and doesn't block: 

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from machine import Pin, Timer
import network
import time
from umqtt.simple import MQTTClient
import sys

# LED setup
led = Pin("LED", Pin.OUT)

# MQTT Configuration
MQTT_BROKER = "your_broker_address"
MQTT_PORT = 1883
MQTT_TOPIC = b"your/topic"
MQTT_CLIENT_ID = "pico_client"
MQTT_USERNAME = "your_username"  # If required
MQTT_PASSWORD = "your_password"  # If required

# WiFi Configuration
WIFI_SSID = "your_wifi_ssid"
WIFI_PASSWORD = "your_wifi_password"

# Global flag for message received
message_received = False

def connect_wifi():
    """Connect to WiFi network"""
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print('Connecting to WiFi...')
        wlan.connect(WIFI_SSID, WIFI_PASSWORD)
        while not wlan.isconnected():
            time.sleep(1)
    print('WiFi connected')
    print('Network config:', wlan.ifconfig())

def mqtt_callback(topic, msg):
    """Callback function for MQTT messages"""
    global message_received
    print(f'Received message: {msg.decode()} on topic: {topic.decode()}')
    message_received = True

def connect_mqtt():
    """Connect to MQTT broker"""
    client = MQTTClient(
        MQTT_CLIENT_ID,
        MQTT_BROKER,
        port=MQTT_PORT,
        user=MQTT_USERNAME,
        password=MQTT_PASSWORD,
        keepalive=30
    )
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)
    print('Connected to MQTT Broker')
    return client

def main():
    global message_received
    
    # Connect to WiFi
    try:
        connect_wifi()
    except Exception as e:
        print(f'Failed to connect to WiFi: {e}')
        sys.exit(1)

    # Connect to MQTT
    try:
        client = connect_mqtt()
    except Exception as e:
        print(f'Failed to connect to MQTT broker: {e}')
        sys.exit(1)

    led_state = False
    last_blink = time.ticks_ms()
    blink_interval = 500  # milliseconds
    
    while True:
        try:
            # Check for MQTT messages (non-blocking)
            client.check_msg()

            current_time = time.ticks_ms()
            
            if message_received:
                # Message received - solid LED for 1 second
                led.on()
                time.sleep(1)
                message_received = False
                last_blink = current_time
                led_state = False
                led.off()
            else:
                # Normal operation - blink LED
                if time.ticks_diff(current_time, last_blink) >= blink_interval:
                    led_state = not led_state
                    led.value(led_state)
                    last_blink = current_time

            # Small delay to prevent overwhelming the CPU
            time.sleep_ms(10)

        except Exception as e:
            print(f'Error in main loop: {e}')
            try:
                # Attempt to reconnect
                client = connect_mqtt()
            except:
                print('Failed to reconnect')
                time.sleep(5)

if __name__ == '__main__':
    main()
To use this program: 1. Replace the following configuration values with your own: - `MQTT_BROKER`: Your MQTT broker address - `MQTT_TOPIC`: The topic you want to subscribe to - `MQTT_USERNAME` and `MQTT_PASSWORD`: If your broker requires authentication - `WIFI_SSID` and `WIFI_PASSWORD`: Your WiFi credentials 2. Save this code to your Pico W (e.g., as `main.py`) Features of this program: - Connects to WiFi and MQTT broker - Blinks the onboard LED every 500ms during normal operation - When an MQTT message is received, the LED stays solid for 1 second - Non-blocking design using `check_msg()` - Includes basic error handling and reconnection logic - Uses minimal sleep times to maintain responsiveness The LED behavior will be: - Blinking (500ms on/off) during normal operation - Solid for 1 second when a message is received - Returns to blinking after the message is processed Make sure you have the required libraries installed on your Pico W: - `network` - `umqtt.simple` You can install the MQTT library using: 
1
2
import upip
upip.install('umqtt.simple')
This program provides visual feedback through the LED while continuously monitoring for MQTT messages without blocking the main loop.

Check if all of the following conditions are true:

Substring Evaluation

Testing if the previous output contains the string STA_IF: True

Substring Evaluation

Testing if the previous output contains the string WLAN: True

Substring Evaluation

Testing if the previous output contains the string set_callback: True

Substring Evaluation

Testing if the previous output contains the string MQTTClient: True

Substring Evaluation

Testing if the previous output contains the string check_msg: True

Final Answer: True