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

Output

Here's a Python program that you can use on your Raspberry Pi Pico W Zero to check for MQTT messages, blink the LED on every loop iteration, and set the LED solid for a second when it receives a message:

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

# MQTT broker settings
broker_address = "your_broker_address"
broker_port = 1883
topic = "your_topic"

# LED pin
led_pin = machine.Pin(25, machine.Pin.OUT)

# Connect to Wi-Fi
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect("your_wifi_ssid", "your_wifi_password")

while not wlan.isconnected():
    print("Connecting to Wi-Fi...")
    time.sleep(1)

print("Connected to Wi-Fi")

# MQTT callback function
def mqtt_callback(topic, message):
    print("Received message:", message.decode())
    # Set LED solid for 1 second
    led_pin.on()
    time.sleep(1)
    led_pin.off()

# Connect to MQTT broker
client = MQTTClient("your_client_id", broker_address, port=broker_port)
client.set_callback(mqtt_callback)
client.connect()
client.subscribe(topic)

print("Connected to MQTT broker")

while True:
    # Blink LED
    led_pin.on()
    time.sleep(0.1)
    led_pin.off()
    time.sleep(0.1)

    # Check for MQTT messages (non-blocking)
    client.check_msg()

    # Add a small delay to avoid excessive CPU usage
    time.sleep(0.1)

Make sure to replace the following placeholders with your own values: - `your_broker_address`: The IP address or hostname of your MQTT broker. - `your_topic`: The MQTT topic to subscribe to. - `your_wifi_ssid`: The SSID of your Wi-Fi network. - `your_wifi_password`: The password for your Wi-Fi network. - `your_client_id`: A unique client ID for your MQTT client. This program does the following: 1. It imports the necessary libraries: `machine` for accessing the Pico's hardware, `time` for delays, `network` for Wi-Fi connectivity, and `umqtt.simple` for MQTT communication. 2. It defines the MQTT broker settings (address, port, and topic) and the LED pin. 3. It connects to the Wi-Fi network using the provided SSID and password. 4. It defines an MQTT callback function that is called when a message is received. The callback function prints the received message and sets the LED solid for 1 second. 5. It connects to the MQTT broker using the specified client ID and subscribes to the topic. 6. Inside the main loop, it blinks the LED by turning it on and off with a small delay. 7. It calls `client.check_msg()` to check for MQTT messages in a non-blocking manner. 8. It adds a small delay to avoid excessive CPU usage. The program will continue running indefinitely, blinking the LED and checking for MQTT messages. When a message is received, it will set the LED solid for 1 second and print the received message.

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

LLM Generation

Query

Output

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

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

# Set up WiFi connection
ssid = "YOUR_WIFI_SSID"
password = "YOUR_WIFI_PASSWORD"

wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(ssid, password)

while not wlan.isconnected():
    pass

print("Connected to WiFi")

# Set up MQTT client
mqtt_server = "YOUR_MQTT_SERVER_ADDRESS"
mqtt_port = 1883
mqtt_topic = "YOUR_MQTT_TOPIC"

client_id = ubinascii.hexlify(machine.unique_id())
mqtt_client = MQTTClient(client_id, mqtt_server, port=mqtt_port)

def mqtt_callback(topic, message):
    print("Received message:", message)
    led.on()
    time.sleep(1)
    led.off()

mqtt_client.set_callback(mqtt_callback)
mqtt_client.connect()
mqtt_client.subscribe(mqtt_topic)

print("MQTT client connected and subscribed")

# Main loop
while True:
    mqtt_client.check_msg()
    led.on()
    time.sleep(0.1)
    led.off()
    time.sleep(0.1)

Here's how the program works: 1. We import the necessary modules: `machine` for interacting with the Pico's hardware, `time` for delays, `network` for WiFi connectivity, `ubinascii` for generating a unique client ID, and `umqtt.simple` for the MQTT client. 2. We set up the LED by creating an instance of `machine.Pin` with the "LED" pin name and configuring it as an output. 3. We establish a WiFi connection by providing the SSID and password. The program waits until the connection is established before proceeding. 4. We set up the MQTT client by specifying the MQTT server address, port, and topic to subscribe to. We generate a unique client ID using the Pico's unique ID. 5. We define an `mqtt_callback` function that will be called when a message is received. It prints the received message, turns the LED on for a second, and then turns it off. 6. We connect the MQTT client and subscribe to the specified topic. 7. In the main loop, we continuously check for incoming MQTT messages using `mqtt_client.check_msg()`. This function is non-blocking, so it doesn't halt the program execution. 8. After each check for messages, we turn the LED on for 0.1 seconds and then turn it off for 0.1 seconds to create a blinking effect. This indicates that the program is actively polling for messages. 9. When a message is received, the `mqtt_callback` function is called, and the LED is set solid for a second before resuming the blinking. Make sure to replace `"YOUR_WIFI_SSID"`, `"YOUR_WIFI_PASSWORD"`, `"YOUR_MQTT_SERVER_ADDRESS"`, and `"YOUR_MQTT_TOPIC"` with your actual WiFi credentials, MQTT server address, and desired MQTT topic, respectively. This program allows your Raspberry Pi Pico W Zero to continuously check for MQTT messages, blink the LED to indicate polling, and set the LED solid for a 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

LLM Generation

Query

Output

Here's a Python program that you can use on your Raspberry Pi Pico W Zero to check for MQTT messages, blink the LED on every loop iteration, and set the LED solid for a second when a message is received:

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

# MQTT broker settings
MQTT_BROKER = "your_mqtt_broker_address"
MQTT_PORT = 1883
MQTT_TOPIC = "your_mqtt_topic"

# LED settings
LED_PIN = 25  # Adjust the pin number according to your setup

# Connect to Wi-Fi
def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print("Connecting to Wi-Fi...")
        wlan.connect("your_ssid", "your_password")
        while not wlan.isconnected():
            time.sleep(1)
    print("Connected to Wi-Fi:", wlan.ifconfig())

# MQTT callback function
def mqtt_callback(topic, message):
    print("Received message:", message.decode())
    led.on()
    time.sleep(1)
    led.off()

# Connect to MQTT broker
def connect_mqtt():
    client = MQTTClient("pico_w_zero", MQTT_BROKER, port=MQTT_PORT)
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(MQTT_TOPIC)
    print("Connected to MQTT broker")
    return client

# Main program
def main():
    connect_wifi()
    mqtt_client = connect_mqtt()

    while True:
        mqtt_client.check_msg()
        led.on()
        time.sleep(0.1)
        led.off()
        time.sleep(0.1)

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

# Run the main program
if __name__ == "__main__":
    main()

Before running this program, make sure to replace the following placeholders with your actual values: - `your_mqtt_broker_address`: The address of your MQTT broker. - `your_mqtt_topic`: The MQTT topic to subscribe to. - `your_ssid`: The SSID (name) of your Wi-Fi network. - `your_password`: The password for your Wi-Fi network. - `LED_PIN`: The pin number connected to the LED on your Pico W Zero (default is 25). The program does the following: 1. It connects to the Wi-Fi network using the provided SSID and password. 2. It connects to the MQTT broker using the specified broker address and port. 3. It sets up an MQTT callback function that is called whenever a message is received on the subscribed topic. The callback function prints the received message and sets the LED solid for a second. 4. In the main loop, the program continuously checks for incoming MQTT messages using `mqtt_client.check_msg()`. It also blinks the LED by turning it on and off with a delay of 0.1 seconds in each state. 5. If an MQTT message is received, the callback function is triggered, and the LED is set solid for a second before resuming the blinking. Make sure you have the `umqtt.simple` library installed on your Pico W Zero. You can install it using `upip` by running the following command:

upip install micropython-umqtt.simple

Upload this program to your Pico W Zero and run it. The LED should start blinking, indicating that the program is running and polling for MQTT messages. When a message is received on the subscribed topic, the LED will turn solid for a second before resuming blinking.

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

LLM Generation

Query

Output

import machine
import time
from umqtt.simple import MQTTClient

# MQTT broker settings
BROKER_ADDRESS = "your_broker_address"
BROKER_PORT = 1883
TOPIC = "your_topic"

# LED settings
LED_PIN = machine.Pin(25, machine.Pin.OUT)

# MQTT callback function
def on_message(topic, msg):
    print("Received message:", msg.decode())
    LED_PIN.on()
    time.sleep(1)
    LED_PIN.off()

# Connect to MQTT broker
client = MQTTClient("picow", BROKER_ADDRESS, port=BROKER_PORT)
client.set_callback(on_message)
client.connect()
client.subscribe(TOPIC)

# Main loop
while True:
    # Check for MQTT messages (non-blocking)
    client.check_msg()

    # Blink the LED
    LED_PIN.on()
    time.sleep(0.1)
    LED_PIN.off()
    time.sleep(0.1)

Here's how the program works: 1. We import the necessary libraries: `machine` for accessing the Pico's hardware, `time` for delays, and `umqtt.simple` for MQTT functionality. 2. We define the MQTT broker settings, including the broker address, port, and the topic to subscribe to. Replace `"your_broker_address"` with the actual IP address or hostname of your MQTT broker, and `"your_topic"` with the desired topic. 3. We set the LED pin to GPIO 25 (you can change this to the appropriate pin for your setup). 4. We define an MQTT callback function called `on_message` that will be executed whenever a message is received. It prints the received message, turns the LED on for a second, and then turns it off. 5. We create an instance of the MQTT client, set the callback function, and connect to the broker. We also subscribe to the specified topic. 6. In the main loop, we use `client.check_msg()` to check for incoming MQTT messages in a non-blocking manner. This allows the program to continue running even if no messages are received. 7. After checking for messages, we blink the LED by turning it on for 0.1 seconds and then off for 0.1 seconds. This indicates that the program is actively polling for messages. 8. The loop continues indefinitely, repeatedly checking for MQTT messages and blinking the LED. Note: Make sure you have the `umqtt.simple` library installed on your Raspberry Pi Pico W Zero. You can install it using a package manager like `upip` or by uploading the library files to your Pico. Also, ensure that your Raspberry Pi Pico W Zero is connected to the same network as your MQTT broker and has the necessary network configuration to communicate with the broker.

Check if all of the following conditions are true:

Substring Evaluation

Testing if the previous output contains the string STA_IF: False

Substring Evaluation

Testing if the previous output contains the string WLAN: False

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: False

Initial Query

LLM Generation

Query

Output

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

# Set up the Wi-Fi connection
ssid = "your_wifi_ssid"
password = "your_wifi_password"

# Set up the MQTT broker details
mqtt_broker = "your_mqtt_broker_address"
mqtt_port = 1883
mqtt_topic = "your_mqtt_topic"

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

def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print("Connecting to Wi-Fi...")
        wlan.connect(ssid, password)
        while not wlan.isconnected():
            pass
    print("Connected to Wi-Fi:", wlan.ifconfig())

def mqtt_callback(topic, msg):
    print("Received message:", msg.decode())
    led.on()
    time.sleep(1)
    led.off()

def main():
    connect_wifi()

    client_id = ubinascii.hexlify(machine.unique_id())
    client = MQTTClient(client_id, mqtt_broker, port=mqtt_port)
    client.set_callback(mqtt_callback)
    client.connect()
    client.subscribe(mqtt_topic)

    print("MQTT client connected and subscribed to topic:", mqtt_topic)

    while True:
        client.check_msg()
        led.on()
        time.sleep(0.1)
        led.off()
        time.sleep(0.1)

if __name__ == "__main__":
    main()

Here's how the program works: 1. We import the necessary libraries: `machine` for accessing the Pico W Zero's hardware, `time` for delays, `network` for Wi-Fi connectivity, `ubinascii` for generating a unique client ID, and `umqtt.simple` for MQTT functionality. 2. We define the Wi-Fi SSID and password, MQTT broker details (address, port, and topic), and set up the LED using the onboard LED pin. 3. The `connect_wifi()` function establishes a Wi-Fi connection using the provided SSID and password. 4. The `mqtt_callback()` function is called when a message is received. It prints the received message, turns the LED on for a second, and then turns it off. 5. The `main()` function is the entry point of the program. It connects to Wi-Fi, sets up the MQTT client with a unique client ID, connects to the MQTT broker, subscribes to the specified topic, and enters the main loop. 6. In the main loop, the program continuously checks for incoming MQTT messages using `client.check_msg()`. It also blinks the LED by turning it on for 0.1 seconds and off for 0.1 seconds on every loop iteration. 7. When an MQTT message is received, the `mqtt_callback()` function is invoked, and the LED is set solid for a second. Make sure to replace `your_wifi_ssid`, `your_wifi_password`, `your_mqtt_broker_address`, and `your_mqtt_topic` with your actual Wi-Fi and MQTT broker details. This program allows your Raspberry Pi Pico W Zero to connect to Wi-Fi, subscribe to an MQTT topic, and continuously check for incoming messages. The LED blinks on every loop iteration to indicate that it's polling, and it stays solid for a 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