from machine import Pin, ADC, I2C
from time import sleep
import lcd_api
import i2c_lcd

# Define the I2C pins and initialize the I2C interface
i2c = I2C(1, scl=Pin(22), sda=Pin(21), freq=400000)

# Initialize the LCD
lcd = i2c_lcd.I2cLcd(i2c, 0x27, 4, 20)

# Define the ADF8317 pin
rf_output_pin = ADC(Pin(36))  # ADC1 channel 0 is GPIO36
# wala pa pong nakalagay


def setup():
    # Initialize the LCD
    lcd.putstr("RF Detector\n")

def loop():
    while True:
        # Read the analog input from the RF output pin and convert to voltage
        val = rf_output_pin.read()
        rf_output = (val * 3.3) / 4095.0  # Convert the analog value to voltage (assuming 3.3V supply)

        # Clear the LCD display for new content
        lcd.clear()
        # Display the RF output on the LCD
        lcd.putstr("RF Output:\n")
        lcd.putstr("{:.2f} V".format(rf_output))

        # Print details to the serial monitor for debugging
        print("RF Output: {:.2f} V".format(rf_output))

        sleep(0.5)  # Add a small delay for stability

# Run the setup function
setup()

# Start the loop
loop()