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

To create a Python program that runs on a Raspberry Pi Pico W and checks for MQTT messages while blinking an LED, you'll need to use the `umqtt.simple` library for MQTT communication and the `machine` library to control the LED. Below is an example of how you could implement this. ### Prerequisites 1. Make sure you have the necessary libraries installed on your Raspberry Pi Pico W. The `umqtt.simple` library can usually be found in MicroPython's package repository. If you don't have it, you may need to download it and upload it to your Pico. 2. Connect an LED to a GPIO pin (e.g., GPIO 25, which is the built-in LED on the Pico). ### Code Example Here's a Python script that you can run on your Raspberry Pi Pico W: 

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

# Configure your Wi-Fi and MQTT settings
WIFI_SSID = 'your_wifi_ssid'
WIFI_PASSWORD = 'your_wifi_password'
MQTT_BROKER = 'your_mqtt_broker_address'
MQTT_TOPIC = 'your/mqtt/topic'

# Set up the LED
led = Pin(25, Pin.OUT)

# Function to connect to Wi-Fi
def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
    while not wlan.isconnected():
        time.sleep(1)
    print("Connected to Wi-Fi")

# Function to handle incoming MQTT messages
def message_callback(topic, msg):
    print(f"Received message: {msg} on topic: {topic}")
    led.value(1)  # Turn on LED
    time.sleep(1)  # Keep it on for 1 second
    led.value(0)  # Turn off LED

# Main function
def main():
    connect_wifi()
    client = MQTTClient("PicoClient", MQTT_BROKER)
    client.set_callback(message_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)

    while True:
        client.check_msg()  # Non-blocking message check
        led.value(1)  # Turn on LED
        time.sleep(0.1)  # Keep it on for a short period
        led.value(0)  # Turn off LED
        time.sleep(0.1)  # Keep it off for a short period

# Run the main function
if __name__ == "__main__":
    main()
### Explanation - **Wi-Fi Connection**: The `connect_wifi` function connects to your Wi-Fi network using the credentials provided. - **MQTT Setup**: The `message_callback` function is called whenever a message is received on the subscribed MQTT topic. It turns the LED on for one second to indicate that a message was received. - **Looping**: In the `main` function, it uses a non-blocking call to `client.check_msg()` to check for messages without stopping the LED blinking. The LED blinks by toggling its state every 0.1 seconds. ### Notes - Replace `your_wifi_ssid`, `your_wifi_password`, `your_mqtt_broker_address`, and `your/mqtt/topic` with your actual Wi-Fi and MQTT broker details. - Ensure you handle errors and exceptions in your production code for robustness, especially network and MQTT-related errors. - Test the code with your MQTT broker to ensure it works as expected. This code will keep your Pico W polling for MQTT messages while providing a visual indication of its activity through the LED.

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

Certainly! Below is a Python program that you can run on your Raspberry Pi Pico W Zero to check for MQTT messages. This program uses the `umqtt.simple` library to handle MQTT communication, and it will blink an LED in each loop iteration. When it receives a message, it will turn the LED solid for one second. Make sure you have the required libraries installed on your Raspberry Pi Pico W and that you have the correct MQTT broker settings. ### Requirements 1. **MicroPython**: Ensure you are running MicroPython on your Raspberry Pi Pico W. 2. **umqtt.simple Library**: You might need to download the `umqtt.simple.py` file and upload it to your Pico. ### Program Code 

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

# Configuration
SSID = 'your_ssid'
PASSWORD = 'your_password'
MQTT_BROKER = 'mqtt_broker_address'
MQTT_TOPIC = 'your/topic'

# Initialize LED
led = Pin(25, Pin.OUT)  # On Pico W, LED is typically on Pin 25

# Connect to WiFi
def connect_to_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(SSID, PASSWORD)

    while not wlan.isconnected():
        time.sleep(0.5)
    print("Connected to WiFi:", wlan.ifconfig())

# MQTT callback function
def message_callback(topic, msg):
    print("Message received:", topic, msg)
    led.on()  # Turn on LED for message receipt
    time.sleep(1)  # Keep LED on for 1 second
    led.off()  # Turn off LED after 1 second

# Main function
def main():
    connect_to_wifi()
    
    # Create an MQTT client
    client = MQTTClient("pico_client", MQTT_BROKER)
    client.set_callback(message_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)

    try:
        while True:
            client.check_msg()  # Check for new messages
            led.toggle()  # Blink the LED
            time.sleep(0.1)  # Adjust this value to change blink speed

    except KeyboardInterrupt:
        print("Exiting...")
    finally:
        client.disconnect()

# Run the main function
if __name__ == "__main__":
    main()
### Instructions: 1. Replace `your_ssid`, `your_password`, `mqtt_broker_address`, and `your/topic` with your actual WiFi credentials and MQTT broker details. 2. Upload the `umqtt.simple.py` library to your Raspberry Pi Pico W. 3. Save the above code in a file (e.g., `mqtt_led_blink.py`) and run it on your Pico. ### Explanation: - The program connects to a WiFi network using the provided SSID and password. - It establishes an MQTT connection to the specified broker and subscribes to a topic. - In the main loop, it checks for incoming messages, blinks the LED, and turns the LED solid for one second when a message is received. - The program can be stopped using a keyboard interrupt (Ctrl+C).

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

To create a Python program that runs on your Raspberry Pi Pico W and checks for MQTT messages while blinking an LED, you can use the `umqtt.simple` library for MQTT handling and the `machine` module for controlling the LED. The following code sets up a simple MQTT client that connects to a broker, subscribes to a topic, and blinks an LED while polling for messages. ### Requirements 1. Make sure you have the `umqtt.simple` library available in your MicroPython environment. 2. Replace the placeholders for the Wi-Fi SSID, password, MQTT broker address, and topic with your actual credentials. ### Code Example 

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

# Configure your Wi-Fi credentials and MQTT server details
WIFI_SSID = 'your_wifi_ssid'
WIFI_PASSWORD = 'your_wifi_password'
MQTT_BROKER = 'your_mqtt_broker'
MQTT_TOPIC = 'your/topic'

# Set up LED pin
led_pin = Pin(25, Pin.OUT)  # Use pin 25 for the onboard LED

# Connect to Wi-Fi
def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)

    # Wait for connection
    while not wlan.isconnected():
        time.sleep(0.5)
    print("Connected to Wi-Fi")

# Callback function for received messages
def message_callback(topic, msg):
    print(f"Message received: {msg.decode()}")
    led_pin.value(1)  # Turn on LED
    time.sleep(1)     # Keep LED on for 1 second
    led_pin.value(0)  # Turn off LED

# Main program
def main():
    connect_wifi()
    
    # Initialize MQTT client
    client = MQTTClient("client_id", MQTT_BROKER)
    client.set_callback(message_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)

    print("MQTT client connected and subscribed to topic")

    # Main loop
    while True:
        # Blink the LED
        led_pin.value(1)  # LED on
        time.sleep(0.1)   # Adjust blink rate as necessary
        led_pin.value(0)  # LED off
        time.sleep(0.1)

        # Check for incoming messages
        client.check_msg()

# Run the main function
if __name__ == "__main__":
    main()
### Instructions 1. Replace the placeholders in the code with your Wi-Fi SSID, password, MQTT broker address, and topic. 2. Upload the script to your Raspberry Pi Pico W and run it. 3. The onboard LED will blink as the script polls for MQTT messages. When a message is received, the LED will stay on for one second. ### Note - Ensure that your MQTT broker is reachable from the network your Raspberry Pi Pico W is connected to. - You may need to adjust the pin number if you are using an external LED connected to a different GPIO pin.

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

To create a Python program that runs on your Raspberry Pi Pico W and checks for MQTT messages, you can use the `umqtt.simple` library for MQTT communication and the `machine` library for controlling the LED. The program will blink an LED in each iteration of the loop and turn it on solid for one second when an MQTT message is received. Here's a complete example of how to achieve this: 1. Ensure you have the necessary libraries installed on your Raspberry Pi Pico W. You may need to download the `umqtt.simple.py` library and upload it to your Pico. 2. Use the following code as your main program. This example assumes you have connected the LED to GPIO pin 25 (which is typically the built-in LED on the Pico). 

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

# Configuration
SSID = 'your_wifi_ssid'
PASSWORD = 'your_wifi_password'
MQTT_BROKER = 'broker.hivemq.com'  # Change to your MQTT broker
TOPIC = 'test/topic'  # Change to your desired topic

# Initialize LED
led = Pin(25, Pin.OUT)

def connect_wifi():
    """Connect to Wi-Fi."""
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(SSID, PASSWORD)

    while not wlan.isconnected():
        time.sleep(1)
    print('Connected to Wi-Fi:', wlan.ifconfig())

def mqtt_callback(topic, msg):
    """Callback function for MQTT messages."""
    print(f"Received message: {msg.decode()} on topic: {topic}")
    # Solid LED for 1 second when a message is received
    led.value(1)  # Turn on LED
    time.sleep(1)  # Keep it on for 1 second
    led.value(0)  # Turn off LED

def main():
    connect_wifi()
    
    # Setup MQTT client
    client = MQTTClient("pico_w", MQTT_BROKER)
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(TOPIC)

    print(f"Subscribed to {TOPIC}")

    while True:
        # Blink LED
        led.value(1)  # Turn on LED
        time.sleep(0.1)  # LED on for 100 ms
        led.value(0)  # Turn off LED
        time.sleep(0.1)  # LED off for 100 ms

        # Check for new MQTT messages
        client.check_msg()

try:
    main()
except KeyboardInterrupt:
    print("Exiting...")
finally:
    led.value(0)  # Ensure LED is off on exit
### Instructions: 1. Replace `'your_wifi_ssid'` and `'your_wifi_password'` with your actual Wi-Fi credentials. 2. Ensure that the MQTT broker URL and topic are set correctly. You can use a public broker like HiveMQ for testing purposes. 3. Upload the `umqtt.simple.py` library to your Raspberry Pi Pico W if you haven't done so already. 4. Run the code on your Raspberry Pi Pico W. ### Notes: - The LED will blink while the program is polling for messages. - When a message is received, the LED will stay solid for one second before resuming the blink pattern. - Make sure to handle any exceptions and clean up resources properly to avoid any issues. This code provides a non-blocking way to check for MQTT messages while giving visual feedback through the LED.

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

To create a Python program for your Raspberry Pi Pico W that checks for MQTT messages and uses an LED to indicate activity, you can use the `umqtt.simple` library for MQTT and the `machine` library to control the GPIO pins. Below is a simple script that will achieve the desired functionality. Make sure you have the required libraries installed on your Raspberry Pi Pico W, and replace the placeholders for your MQTT broker details. ### Prerequisites 1. Install MicroPython on your Raspberry Pi Pico W. 2. Make sure you have the `umqtt.simple` library available. You can upload it via a tool like Thonny or any other method you prefer. ### Python Code 

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

# Configuration
SSID = 'your_wifi_ssid'
PASSWORD = 'your_wifi_password'
MQTT_BROKER = 'your_mqtt_broker_ip'
MQTT_TOPIC = 'your_mqtt_topic'

# Setup LED Pin
led = Pin(25, Pin.OUT)  # Assuming built-in LED is on pin 25

# Connect to Wi-Fi
def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(SSID, PASSWORD)
    
    while not wlan.isconnected():
        time.sleep(1)
    print('Connected to Wi-Fi:', wlan.ifconfig())

# MQTT Callback function
def mqtt_callback(topic, msg):
    print('Received message:', msg.decode())
    led.value(1)  # Turn on LED for 1 second
    time.sleep(1)
    led.value(0)  # Turn off LED

# Main loop
def main():
    connect_wifi()
    client = MQTTClient("pico_w_client", MQTT_BROKER)
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)

    try:
        while True:
            led.value(1)  # Blink LED on
            time.sleep(0.1)
            led.value(0)  # Blink LED off
            time.sleep(0.1)
            client.check_msg()  # Check for new MQTT messages
    except KeyboardInterrupt:
        client.disconnect()

if __name__ == '__main__':
    main()
### Explanation - **Wi-Fi Connection**: The `connect_wifi()` function connects the Pico W to the specified Wi-Fi network. - **MQTT Setup**: The MQTT client is created and configured to subscribe to a specific topic. - **LED Control**: The built-in LED on the Pico W is used for indicating activity and notifications. It blinks while polling for messages and stays solid for one second when a message is received. - **Non-blocking**: The call to `client.check_msg()` allows the program to remain responsive while still checking for incoming messages. - **Error Handling**: You can stop the program gracefully with a keyboard interrupt (Ctrl+C). ### Usage 1. Replace the `SSID`, `PASSWORD`, `MQTT_BROKER`, and `MQTT_TOPIC` with your actual Wi-Fi and MQTT broker details. 2. Upload the script to your Raspberry Pi Pico W and run it. Make sure to have a proper MQTT broker running and publish messages to the configured topic to see the LED respond accordingly.

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