import machine
import sdcard
import uos
import dht
import utime

# DHT11 data pin
dht_sensor = dht.DHT11(machine.Pin(5))

# Assign chip select (CS) pin (and start it high)
cs = machine.Pin(1, machine.Pin.OUT)

# Initialize SPI peripheral (start with 1 MHz)
spi = machine.SPI(0,
                  baudrate=1000000,
                  polarity=0,
                  phase=0,
                  bits=8,
                  firstbit=machine.SPI.MSB,
                  sck=machine.Pin(2),
                  mosi=machine.Pin(3),
                  miso=machine.Pin(4))

# Initialize SD card
sd = sdcard.SDCard(spi, cs)

# Mount filesystem
vfs = uos.VfsFat(sd)
uos.mount(vfs, "/sd")

# Run this in an infinite loop to continuously log sensor data
while True:
    try:
        dht_sensor.measure()
        temp = dht_sensor.temperature  # No parentheses here
        humidity = dht_sensor.humidity  # No parentheses here
        
        # Create a file and write the sensor readings to it
        with open("sensor_log.txt", "a") as file:
            file.write("Temperature: {}C, Humidity: {}%\r\n".format(temp, humidity))
    
        # Open the file we just created and read from it
        with open("sensor_log.txt", "r") as file:
            data = file.read()
            print(data)

    except Exception as e:
        print('Failed to read sensor.', e)

    # Sleep for 1 minute before next reading
    utime.sleep(5)