from machine import Pin, I2C
import ssd1306
import time 
import dht

sensor = dht.DHT22(Pin(12))

relay = Pin(25, Pin.OUT)
relay.value(0)

i2c = I2C(0, scl=Pin(22), sda=Pin(21))
oled = ssd1306.SSD1306_I2C(128, 64, i2c)

plants = {
    'Tomato' : {
        'min_temp': 20,
        'max_temp': 28,

    },

    'Lettuce' : {
        'min_temp': 15,
        'max_temp': 22,

    },

    'Pepper' : {
        'min_temp': 22,
        'max_temp': 30,

    },

}

# choose the plant profile
plant_name = 'Lettuce'

# get the plant profile
plant = plants[plant_name]

# get min & max temp in the profile
min_temp = plant['min_temp']
max_temp = plant['max_temp']


while True:
    sensor.measure()
    
    temp = sensor.temperature()
    humidity = sensor.humidity()

    # check the temp of plant to know on or off the fan
    if temp > max_temp:
        relay.value(1)
        fan_status = 'ON'

    else:
        relay.value(0)
        fan_status = 'OFF'

    # OLED Display
    oled.fill(0)

    oled.text(plant_name, 0, 0)
    
    oled.text('Temp: ', 0, 18)
    oled.text(str(temp), 65, 18)

    oled.text('Hum: ', 0, 34)
    oled.text(str(humidity), 65, 34)

    oled.text('Fan: ', 0, 50)
    oled.text(fan_status, 65, 50)

    # showing the text on the OLED Display
    oled.show()

    time.sleep(2.2)