SunFounder Super Kit 3.0, Руководство пользователя

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Step 2: Open the code file
cd / home / pi / SunFounder_Super_Kit_V3.0_for_Raspberry_Pi / Python
Step 3: Run
sudo python 03_8Led.py
Code Explanation
LedPins = [17, 18, 27, 22, 23, 24, 25, 4] # The cathodes of the 8 LEDs connect to B17,
B18, B27, 22, 23, 24, 25, 4 of the T-shape extension board. In BCM, these pins are
corresponding to 17, 18, 27, 22, 23, 24, 25, and 4.
leds = ['-', '-', '-', '-', '-', '-', '-', '-'] # the array to print out the status of
the 8 LEDs
for pin in LedPins # Assign the element in pins list to pin variable one by one. In
GPIO.setup (pin, GPIO.OUT), set the pins in list as output one by one.
GPIO.output(pin, GPIO.LOW) # Set each element in the pins list as low level to
light up the LEDs
leds[LedPins.index(pin)] = 0 # Show which LED is on
time.sleep(0.1) # wait for 0.1s
GPIO.output(pin, GPIO.HIGH)) # After delaying, set it as high level to light up or
turn off the LED.
leds[LedPins.index(pin)] = '-' # Show the led is off
You will see the eight LEDs lighten up one by one, and then dim in turn.