from machine import Pin, I2C, time_pulse_us
import veml7700, time

i2c = I2C(0, scl=Pin(1), sda=Pin(0), freq=10000) # connected on i2c0

veml = veml7700.VEML7700(address=0x10, i2c=i2c, it=100, gain=1/8)

def measure():
    lux_val = veml.read_lux()
    print(lux_val)
    return(lux_val)

SOUND_SPEED=340
TRIG_PULSE_DURATION=10

trig_pin=Pin(3, Pin.OUT)
echo_pin=Pin(2,Pin.IN)

def distance():
    trig_pin.value(0)
    time.sleep_us(5)
    trig_pin.value(1)
    time.sleep_us(TRIG_PULSE_DURATION)
    trig_pin.value(0)
    
    ultransonic_duration=time_pulse_us(echo_pin,1,30000)
    distance_cm=SOUND_SPEED*ultransonic_duration/20000
    print(distance_cm)
    return(distance_cm)

while True:
    measure()
    distance()