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

# Pin Definitions
BOOST_PIN = 34  # Analog pin to read boost pressure

# Initialize I2C communication
i2c = I2C(scl=Pin(22), sda=Pin(21))

# Initialize OLED display
oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)

# Initialize analog input for boost pressure
adc = ADC(Pin(BOOST_PIN))
adc.atten(ADC.ATTN_11DB)  # Set attenuation level for 0-3.6V range

def read_boost_pressure():
    boost_value = adc.read()
    # Convert analog value to PSI (assuming linear scaling)
    boost_psi = (boost_value / 4095) * 30  # Adjust the scaling factor as needed
    return boost_psi

def display_boost_pressure(psi):
    oled.fill(0)  # Clear the display buffer
    oled.text("Boost:", 0, 0)
    oled.text("{:.1f} PSI".format(psi), 0, 16)
    oled.show()

# Main loop
while True:
    boost_pressure = read_boost_pressure()
    display_boost_pressure(boost_pressure)
    time.sleep_ms(250)  # Update the display every second