from machine import Pin, ADC
from time import sleep

ldrValue = ADC(27)
redLED = Pin(14, Pin.OUT)
greenLED = Pin(15, Pin.OUT)


MAX_ADC_READING = 65535;
ADC_REF_VOLTAGE = 3.3;

while True:
    rawData = ldrValue.read_u16()
    ldrVoltage = (rawData /MAX_ADC_READING) * ADC_REF_VOLTAGE
    persent = ldrVoltage*100/3.3
    print(f"LDR voltage persent: {persent}")


    if ldrVoltage > 0.3*3.3:
        redLED.value(0)
        greenLED.value(1)
        print("====================")
    else :
        greenLED.value(0)
        redLED.value(1)
        print("====================")
# nathakorn 3/3 No.5