from machine import Pin, I2C, PWM
import time
import ssd1306
import network
import urequests  # Import urequests for HTTP requests

# Configuration de l'afficheur SSD1306
i2c = I2C(scl=Pin(16), sda=Pin(17))  # Changez les broches si nécessaire
oled = ssd1306.SSD1306_I2C(128, 64, i2c)

pirinput = Pin(32, Pin.IN)
buzzer = PWM(Pin(2))  # Initialize the buzzer pin for PWM

def play_tone(frequency, duration):
    buzzer.freq(frequency)          # Set frequency
    buzzer.duty(512)                # Set duty cycle (50%)
    time.sleep(duration / 1000)     # Duration in seconds
    buzzer.duty(0)                  # Turn off the tone

SSID = 'wokwi-GUEST'
PASSWORD = ''
CHANNEL_ID = '2777712'
WRITE_API_KEY = '27ECKXJXQ25GA9RH'

def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(SSID, PASSWORD)
    while not wlan.isconnected():
        print("Connexion au Wi-Fi...")
        time.sleep(1)
    print("Connecté au Wi-Fi:", wlan.ifconfig())

def send_to_thingspeak():
    url = f'https://api.thingspeak.com/update?api_key={WRITE_API_KEY}'
    try:
        response = urequests.get(url)
        print("Response from ThingSpeak:", response.text)
        response.close()
    except Exception as e:
        print("Erreur lors de l'envoi à ThingSpeak:", e)

# Connexion au Wi-Fi
connect_wifi()

while True:
    pir = pirinput.value()
    oled.fill(0)  # Effacer l'écran pour rafraîchir le contenu
    if pir == 1:
        play_tone(270, 500)  # Play a 270 Hz tone for 500 milliseconds
        oled.text('Détecté', 0, 10)  # Afficher "Détecté"
        
        # Example values for HR, SPO2, and ECG
        hr = 75  # Replace with actual heart rate value
        spo2 = 98  # Replace with actual SPO2 value
        ecg_value = 0.5  # Replace with actual ECG value
        
        # Send data to ThingSpeak
        send_to_thingspeak(hr, spo2, ecg_value)
        
    else:
        buzzer.duty(0)  # Désactiver le buzzer (turn off PWM)
        oled.text('Non détecté', 0, 20)  # Afficher "Non détecté"
    
    oled.show()  # Mettre à jour l'affichage
    time.sleep(5)  # Délai avant la prochaine lecture