from machine import Pin,ADC,Timer,PWM
from machine import Pin,Timer
import time

ldr1=ADC(Pin(25,Pin.OUT))
ldr2=ADC(Pin(26,Pin.OUT))
ldr3=ADC(Pin(27,Pin.OUT))
pir1=Pin(33,Pin.OUT,Pin.PULL_UP)
R=PWM(Pin(17),freq=900,duty=0)
G=PWM(Pin(16),freq=900,duty=0)
B=PWM(Pin(4),freq=900,duty=0)
Servo=PWM(Pin(5),freq=50,duty=0)

running=False
brightness=False
GAMMA = 0.7
RL10 = 50

def ldr_adc(sens):
  global GAMMA
  global RL10
  analogValue = sens.read()
  voltage = analogValue / 4096. * 5
  resistance = 2000 * voltage / (1 - voltage / 5)
  lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA))
  return lux

def degree_read(sens):
  tmp1=sens.read()
  degree=int((tmp1/4096)*180)
  return degree

while 1:
  tmp=ldr_adc(ldr2)
  if tmp<1000:
    brightness=True
    if pir1.value()==0 and brightness==True:
      R.duty(1023)
      G.duty(0)
      B.duty(0)
      Servo.duty(int((degree_read(ldr1)/90+0.5)/20*1023))
      print (degree_read(ldr1))
    elif pir1.value()==1 or brightness==False:
      R.duty(1023)
      G.duty(1023)
      B.duty(0)
  else :
    R.duty(1023)
    G.duty(1023)
    B.duty(0)


    





# Servo.duty(int(ldr1.read()/4))   

# ldr1.read()/4   #0-1023
# (ldr1.read()/4096)*180   #0-180

# Servo.duty(int(((ldr1.read()/4)/4/90+0.5)/20*1023))   #((x/90+0.5)/20*1023)/4))

# def ldr_ctrl(sens,element):

# tim=Timer(0)
# tim.init(period=250,mode = Timer.PERIODIC,callback=ldr1_ctrl)