Send Data to cloud Using Raspberry Pi || IoT Projects || Thingspeak || DHT22

In this tutorial, learn how to utilize the power of Raspberry Pi Pico and its MicroPython environment to send temperature and humidity data to ThingSpeak, a popular IoT platform. 🔧 Hardware Used: Raspberry Pi Pico DHT22 (AM2302) Temperature and Humidity Sensor 📝 Code: Python Copy code import machine import time import urequests import network import ujson import dht # ThingSpeak settings THINGSPEAK_API_KEY = "TXD92FQJN6C8APJD" THINGSPEAK_URL = "http://api.thingspeak.com/update" # Wi-Fi settings WIFI_SSID = "Your_WiFi_SSID" WIFI_PASSWORD = "Your_WiFi_Password" # DHT22 (AM2302) sensor on GPIO 4 dht_sensor = dht.DHT22(machine.Pin(4)) # Function to read room temperature and humidity def read_room_temperature_humidity(): dht_sensor.measure() temperature = dht_sensor.temperature() humidity = dht_sensor.humidity() return temperature, humidity # Function to send data to ThingSpeak def send_data_to_thingspeak(temperature, humidity): data = { "api_key": THINGSPEAK_API_KEY, "field1": temperature, "field2": humidity, } response = urequests.post(THINGSPEAK_URL, data=ujson.dumps(data), headers={"Content-Type": "application/json"}) response.close() # Initialize the Wi-Fi connection wifi = network.WLAN(network.STA_IF) wifi.active(True) wifi.connect(WIFI_SSID, WIFI_PASSWORD) # Wait for the Wi-Fi connection to establish while not wifi.isconnected(): time.sleep(1) print("Connected to Wi-Fi") if __name__== "__main__": try: while True: temperature, humidity = read_room_temperature_humidity() send_data_to_thingspeak(temperature, humidity) print("Data sent to ThingSpeak") time.sleep(15) # Send data every 15 seconds (adjust the interval as needed) except KeyboardInterrupt: pass 🎥 Tutorial Highlights: Introduction to Raspberry Pi Pico and MicroPython Setting up Wi-Fi connectivity on Raspberry Pi Pico Reading temperature and humidity data using DHT22 sensor Sending data to ThingSpeak using MicroPython and urequests library Tips for adjusting data sending intervals and handling exceptions 🔗 Useful Links: ThingSpeak:https://thingspeak.com/ 🚀 Don't forget to like, share, and subscribe for more Raspberry Pi and IoT tutorials! #RaspberryPi #IoT #ThingSpeak #MicroPython #Tutorial Feel free to customize the Wi-Fi SSID and password in the code according to your network settings.