45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
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# Imports
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from machine import ADC, Pin
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import time
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# Set up the LED pins
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red = Pin(18, Pin.OUT)
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amber = Pin(19, Pin.OUT)
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green = Pin(20, Pin.OUT)
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# Define pin for our sensor
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lightsensor = ADC(Pin(26))
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while True: # Run forever
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# Read sensor value and store it in a variable called 'light'
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light = lightsensor.read_u16()
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# Use the round function to limit the decimal places to 1
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lightpercent = round(light/65535*100,1)
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# Print our reading percentage with % symbol
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print(str(lightpercent) +"%")
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# 1 second delay between readings
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time.sleep(1)
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if lightpercent <= 30: # If percentage is less than or equal to 30
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red.value(1) # Red LED on
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amber.value(0)
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green.value(0)
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elif 30 < lightpercent < 60: # If percentage is between 30 and 60
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red.value(0)
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amber.value(1) # Amber LED on
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green.value(0)
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elif lightpercent >= 60: # If percentage is greater than or equal to 60
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red.value(0)
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amber.value(0)
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green.value(1) # Green LED on
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