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 script for a Raspberry Pi Pico W that uses the `umqtt.simple` library to check for MQTT messages non-blockingly while blinking the onboard LED: 

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

# Network Configuration
WIFI_SSID = 'YOUR_WIFI_SSID'
WIFI_PASSWORD = 'YOUR_WIFI_PASSWORD'

# MQTT Broker Configuration
MQTT_BROKER = 'your_mqtt_broker_ip'
MQTT_PORT = 1883
MQTT_TOPIC = 'your/mqtt/topic'
MQTT_CLIENT_ID = 'pico_client'

# LED Configuration
led = machine.Pin("LED", machine.Pin.OUT)

def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
    
    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:
        print('network connection failed')
        sys.exit()
    else:
        print('Connected')
        ip = wlan.ifconfig()[0]
        print(f'IP = {ip}')
    
    return wlan

def mqtt_callback(topic, msg):
    print(f'Received message on topic {topic}: {msg}')
    # Solid LED for 1 second when message received
    led.on()
    time.sleep(1)
    led.off()

def connect_mqtt():
    client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, MQTT_PORT)
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)
    print(f'Connected to MQTT Broker {MQTT_BROKER}, subscribed to {MQTT_TOPIC}')
    return client

def main():
    # Connect to WiFi
    wlan = connect_wifi()
    
    # Connect to MQTT
    mqtt_client = connect_mqtt()
    
    blink_interval = 0.5  # Blink every half second
    last_blink = 0
    led_state = False
    
    try:
        while True:
            # Non-blocking MQTT check
            mqtt_client.check_msg()
            
            # Blink LED to show activity
            current_time = time.time()
            if 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(0.1)
    
    except KeyboardInterrupt:
        print('Interrupted')
    
    finally:
        # Clean up connections
        mqtt_client.disconnect()
        wlan.disconnect()

if __name__ == '__main__':
    main()
Here's what the script does: 1. Connects to WiFi 2. Connects to MQTT broker 3. Subscribes to a specified MQTT topic 4. Continuously checks for MQTT messages without blocking 5. Blinks the onboard LED to show it's active 6. When a message is received, sets the LED solid for 1 second Before running, make sure to: - Replace `YOUR_WIFI_SSID` and `YOUR_WIFI_PASSWORD` - Replace `your_mqtt_broker_ip` - Set the `MQTT_TOPIC` to your desired topic - Install `umqtt.simple` library (you can do this via Thonny or mpremote) The script uses non-blocking techniques: - `check_msg()` checks for messages without waiting - Uses `time.time()` for LED blinking without blocking - Small `time.sleep(0.1)` to prevent tight CPU loop Adjust the `blink_interval` and other parameters as needed for your specific use case.

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 script for a Raspberry Pi Pico W that meets your requirements: 

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import network
import time
import ubinascii
import machine
import umqtt.simple as umqtt

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

# MQTT Configuration
MQTT_BROKER = 'your_mqtt_broker_address'
MQTT_PORT = 1883
MQTT_TOPIC = 'your/mqtt/topic'
MQTT_CLIENT_ID = ubinascii.hexlify(machine.unique_id())

# LED and Networking Setup
led = machine.Pin("LED", machine.Pin.OUT)
wlan = network.WLAN(network.STA_IF)

def connect_wifi():
    wlan.active(True)
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
    
    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')
        ip = wlan.ifconfig()[0]
        print(f'IP: {ip}')

def mqtt_callback(topic, msg):
    print(f'Received message on topic {topic}: {msg}')
    led.on()  # Solid LED when message received
    time.sleep(1)
    led.off()

def main():
    connect_wifi()
    
    # MQTT Client Setup
    client = umqtt.MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, MQTT_PORT)
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)
    
    print(f'Connected to MQTT broker and subscribed to {MQTT_TOPIC}')
    
    blink_interval = 0.5  # Blink every half second
    last_blink = 0
    
    try:
        while True:
            # Non-blocking MQTT check
            client.check_msg()
            
            # Blink LED to show it's alive
            current_time = time.time()
            if current_time - last_blink >= blink_interval:
                led.toggle()
                last_blink = current_time
            
            time.sleep(0.1)  # Small delay to prevent tight looping
    
    except KeyboardInterrupt:
        print('Interrupted')
    
    finally:
        client.disconnect()
        wlan.disconnect()

if __name__ == '__main__':
    main()
This script does the following: 1. Connects to WiFi 2. Connects to an MQTT broker 3. Subscribes to a specified MQTT topic 4. Blinks the LED at regular intervals to show it's active 5. When an MQTT message is received: - Prints the message - Turns the LED solid for 1 second 6. Uses non-blocking MQTT checking with `check_msg()` Before running, replace: - `'your_wifi_ssid'` - `'your_wifi_password'` - `'your_mqtt_broker_address'` - `'your/mqtt/topic'` with your actual network and MQTT details. You'll need to install these libraries on your Raspberry Pi Pico W: - `umqtt.simple` - `network` You can install these via `mpremote` or your preferred MicroPython package method.

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 script for a Raspberry Pi Pico W that meets your requirements: 

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

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

# MQTT Configuration
MQTT_BROKER = "your_mqtt_broker_address"
MQTT_PORT = 1883
MQTT_TOPIC = "your/mqtt/topic"
MQTT_CLIENT_ID = f"picow_{random.randint(0, 1000)}"

# LED Setup
led = machine.Pin("LED", machine.Pin.OUT)

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

def mqtt_callback(topic, msg):
    print(f"Received message on topic {topic}: {msg}")
    # Solid LED for 1 second when message received
    led.on()
    time.sleep(1)
    led.off()

def connect_mqtt():
    client = MQTTClient(
        client_id=MQTT_CLIENT_ID,
        server=MQTT_BROKER,
        port=MQTT_PORT,
        keepalive=60
    )
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)
    print(f"Connected to MQTT Broker and subscribed to {MQTT_TOPIC}")
    return client

def main():
    connect_wifi()
    mqtt_client = connect_mqtt()
    
    blink_interval = 0.5  # Blink every 0.5 seconds
    last_blink = 0
    led_state = False

    try:
        while True:
            # Non-blocking MQTT check
            mqtt_client.check_msg()
            
            # Blink LED to show it's alive
            current_time = time.time()
            if current_time - last_blink >= blink_interval:
                led_state = not led_state
                led.value(led_state)
                last_blink = current_time
            
            time.sleep(0.1)  # Small delay to prevent tight loop
    
    except KeyboardInterrupt:
        print("Interrupted by user")
    finally:
        mqtt_client.disconnect()

if __name__ == "__main__":
    main()
Before running this script, make sure to: 1. Replace placeholders: - `WIFI_SSID` - `WIFI_PASSWORD` - `MQTT_BROKER` - `MQTT_TOPIC` 2. Install required libraries: - `umqtt.simple` (can be installed via `upip`) - Ensure you have the latest MicroPython firmware for Pico W Features of this script: - Connects to WiFi - Connects to MQTT broker - Subscribes to a specified topic - Blinks LED while polling - Turns LED solid for 1 second when a message is received - Non-blocking MQTT message checking - Graceful error handling To use this script, you'll need to: 1. Update WiFi and MQTT credentials 2. Ensure you have the right MicroPython firmware 3. Have the `umqtt.simple` library installed The script provides a simple, non-blocking way to monitor MQTT messages on a Raspberry Pi Pico W while keeping the device responsive and providing visual feedback via 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

Here's a Python script for your Raspberry Pi Pico W that accomplishes what you described: 

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import network
import time
import mqtt_simple as mqtt
import machine

# Network configuration
WIFI_SSID = "your_wifi_ssid"
WIFI_PASSWORD = "your_wifi_password"

# MQTT Broker details
MQTT_BROKER = "your_mqtt_broker_address"
MQTT_PORT = 1883
MQTT_TOPIC = "your/mqtt/topic"
MQTT_CLIENT_ID = "pico_w_client"

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

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

# MQTT callback function
def mqtt_callback(topic, msg):
    print(f"Received message on topic {topic}: {msg}")
    # Solid LED for 1 second
    led.on()
    time.sleep(1)
    led.off()

# MQTT setup and connection
def connect_mqtt():
    client = mqtt.MQTTClient(
        client_id=MQTT_CLIENT_ID,
        server=MQTT_BROKER,
        port=MQTT_PORT,
        keepalive=60
    )
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)
    print(f"Connected to MQTT broker and subscribed to {MQTT_TOPIC}")
    return client

def main():
    # Connect to WiFi
    connect_wifi()
    
    # Connect to MQTT
    mqtt_client = connect_mqtt()
    
    # Blink interval for LED
    blink_interval = 0.5
    last_blink = 0
    led_state = False
    
    try:
        while True:
            # Check for MQTT messages
            mqtt_client.check_msg()
            
            # Blink LED without blocking
            current_time = time.time()
            if current_time - last_blink >= blink_interval:
                led_state = not led_state
                led.value(led_state)
                last_blink = current_time
            
            time.sleep(0.1)  # Small delay to prevent tight loop
    
    except KeyboardInterrupt:
        print("Disconnecting...")
    
    finally:
        mqtt_client.disconnect()

if __name__ == "__main__":
    main()
A few important notes: 1. You'll need to install the `mqtt_simple.py` library. You can find this in the MicroPython repositories or install it via your preferred method. 2. Replace placeholders: - `your_wifi_ssid` - `your_wifi_password` - `your_mqtt_broker_address` - `your/mqtt/topic` 3. This script does the following: - Connects to WiFi - Connects to MQTT broker - Subscribes to a specific topic - Blinks the LED every 0.5 seconds - When a message is received, turns the LED solid for 1 second - Uses non-blocking approach with `check_msg()` 4. The script handles WiFi and MQTT connection, and provides a callback for received messages. 5. Make sure you have the necessary libraries installed in your MicroPython environment. Adjust the blink interval, LED behavior, or add more complex message handling as needed for your specific use case.

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 script for a Raspberry Pi Pico W that meets your requirements: 

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

# Network Configuration
WIFI_SSID = 'your_wifi_ssid'
WIFI_PASSWORD = 'your_wifi_password'

# MQTT Configuration
MQTT_BROKER = 'your_mqtt_broker_address'
MQTT_PORT = 1883
MQTT_CLIENT_ID = 'pico_mqtt_client'
MQTT_TOPIC = 'your/mqtt/topic'

# LED Configuration
led = machine.Pin("LED", machine.Pin.OUT)

def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
    
    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')
        ip = wlan.ifconfig()[0]
        print(f'IP: {ip}')

def mqtt_callback(topic, msg):
    print(f'Received message on topic {topic}: {msg}')
    # Solid LED for 1 second when message received
    led.on()
    time.sleep(1)
    led.off()

def main():
    # Connect to WiFi
    connect_wifi()
    
    # Create MQTT Client
    client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, MQTT_PORT)
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)
    
    print(f'Connected to MQTT broker and subscribed to {MQTT_TOPIC}')
    
    # Polling loop
    try:
        while True:
            # Quick LED blink to show activity
            led.on()
            time.sleep(0.1)
            led.off()
            time.sleep(0.4)
            
            # Check for MQTT messages without blocking
            client.check_msg()
    
    except Exception as e:
        print(f'Error: {e}')
    
    finally:
        client.disconnect()

if __name__ == '__main__':
    main()
Here's what this script does: 1. Connects to WiFi 2. Connects to MQTT broker 3. Subscribes to a specified topic 4. Enters a non-blocking loop that: - Blinks the LED briefly on each iteration - Checks for MQTT messages 5. When a message is received, it will turn the LED solid for 1 second Before running, replace: - `'your_wifi_ssid'` - `'your_wifi_password'` - `'your_mqtt_broker_address'` - `'your/mqtt/topic'` with your actual network and MQTT details. Make sure you have: - `umqtt.simple` library installed - MicroPython firmware with networking support You'll need to install the `umqtt` library. You can do this via: - Thonny - `mpremote` - `rshell` Enjoy your Pico W MQTT listener!

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