Interfacing Photo sensor(KY018) with Raspberry pi pico

 



from machine import Pin

import utime


#Pin 16 is configured with internal Pull Down resistor. The pin value will be 0(Low)

#when if LDR sensor is not Detected Darkness.

#If Pull Down is used,LDR Sensor should be between the GPIO and Vcc(3.3V)

LDR_sensor= Pin(16, Pin.IN, Pin.PULL_DOWN)

Light=Pin(25,Pin.OUT)

# Continuously runs the code under the while loop.

while True:

# Below value should be 0 if use a low active relay

 if LDR_sensor.value() == 1:

    print("Sensor Detected Darkness")

    print("Light is ON")

    print(LDR_sensor.value())

    Light.on()#change(Light.off) if use a low active relay

 else:

    print("Sensor Detected Brightness")

    print(LDR_sensor.value())

    print("Light is OFF")

    Light.off()#change(Light.on) if use a low active relay

    utime.sleep(0.5)

    

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