Clock and temp using TM1637

import machine import dht import time import tm1637 # SETUP HARDWARE # Display connected to GP26 (CLK) and GP27 (DIO) display = tm1637.TM1637(clk=machine.Pin(26), dio=machine.Pin(27)) # Temperature sensor connected to GP18 sensor = dht.DHT11(machine.Pin(18)) # Set display brightness display.brightness(3) print("Clock started (using synced laptop time)...") # MAIN LOOP while True: # Get current time. # Returns a tuple: (year, month, mday, hour, minute, second, weekday, yearday) t = time.localtime() # Extract Hour (index 3) and Minute (index 4) hh = t[3] mm = t[4] # Show the time for 10 seconds display.numbers(hh, mm, True) # Colon ON time.sleep(10) # Measure and show temperature for 5 seconds try: sensor.measure() temp = sensor.temperature() display.temperature(temp) # Format example: "25 C" time.sleep(5) except: print("Sensor error") time.sleep(1)

Weather Station ThingSpeak

import network import time import dht import urequests from machine import Pin import secret # --- Configuration --- ssid=secret.WIFI_SSID password=secret.WIFI_PASS api_key = secret.THINGSPEAK_API_KEY DHT_PIN = 18 # --- LED Setup --- led_pwr = Pin(15, Pin.OUT) # Red led_wifi = Pin(14, Pin.OUT) # Green led_data = Pin(13, Pin.OUT) # Blue led_pwr.value(1) # --- Setup Sensor --- sensor = dht.DHT11(Pin(DHT_PIN)) # --- WiFi --- wlan = network.WLAN(network.STA_IF) wlan.active(True) wlan.connect(ssid, password) while not wlan.isconnected(): led_wifi.toggle() time.sleep(0.5) led_wifi.value(1) # --- Main Loop --- while True: sensor.measure() t = sensor.temperature() h = sensor.humidity() # Print values to Shell print('Temp ', t) print('Humidity ', h) url = f"https://api.thingspeak.com/update?api_key={api_key}&field1={t}&field2={h}" led_data.value(1) response = urequests.get(url) response.close() led_data.value(0) time.sleep(20)

Weather station using ThingSpeak abd SSD1306

import network import time import dht import urequests from machine import Pin,I2C import ssd1306 import secret # --- Configuration --- ssid=secret.WIFI_SSID password=secret.WIFI_PASS api_key = secret.THINGSPEAK_API_KEY DHT_PIN = 18 # --- SSD1306 setup --- # Screen dimensions WIDTH = 128 HEIGHT = 64 # Initialize OLED i2c = I2C(0, scl=Pin(17), sda=Pin(16)) # GP17=SCL, GP16=SDA oled = ssd1306.SSD1306_I2C(WIDTH, HEIGHT, i2c) # Clear the screen oled.fill(0) # --- LED Setup --- led_pwr = Pin(15, Pin.OUT) # Red led_wifi = Pin(14, Pin.OUT) # yellow led_data = Pin(13, Pin.OUT) # Green led_pwr.value(1) # --- Setup Sensor --- sensor = dht.DHT11(Pin(DHT_PIN)) # --- WiFi --- wlan = network.WLAN(network.STA_IF) wlan.active(True) wlan.connect(ssid, password) while not wlan.isconnected(): led_wifi.toggle() time.sleep(0.5) led_wifi.value(1) print('Connected to ' , wlan.ifconfig()[0]) # --- Main Loop --- while True: sensor.measure() t = sensor.temperature() h = sensor.humidity() # Print values to Shell print('Temperature ', t, '°C') print('Humidity ', h, '%') # Write to the display # Syntax: text(string, x, y) oled.text("Temp: {} degC".format(t), 0, 0) oled.text("Humidity: {} %".format(h), 0, 35) # Draw temperature bar (max width = 100 pixels) bar_width = int((t / 100) * 100) oled.rect(0, 15, 100, 10, 1) # outline oled.fill_rect(0, 15, bar_width, 10, 1) # filled bar # Draw humidity bar (max width = 100 pixels) bar_width = int((h / 100) * 100) oled.rect(0, 50, 100, 10, 1) # outline oled.fill_rect(0, 50, bar_width, 10, 1) # filled bar # Show on OLED oled.show() url = f"https://api.thingspeak.com/update?api_key={api_key}&field1={t}&field2={h}" led_data.value(1) response = urequests.get(url) response.close() led_data.value(0) time.sleep(20) # Clear the screen oled.fill(0)

Secret credentials

ssid="xxxxx" password="xxxxx" WIFI_SSID = "xxxxx" WIFI_PASS = "xxxxx" Mobile_Hotspot_SSID = "xxxxx" Mobile_Hotspot_pass = "xxxxx" THINGSPEAK_API_KEY = "xxxxx" To call these passwords, insert a line: import secret in the main program