wiringOP-Python/examples/softpwm.py

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2024-06-06 12:13:43 +08:00
# Pulsates an LED connected to GPIO pin 1 with a suitable resistor 4 times using softPwm
# softPwm uses a fixed frequency
import wiringpi
OUTPUT = 1
PIN_TO_PWM = 1
wiringpi.wiringPiSetup()
wiringpi.pinMode(PIN_TO_PWM,OUTPUT)
wiringpi.softPwmCreate(PIN_TO_PWM,0,100) # Setup PWM using Pin, Initial Value and Range parameters
for time in range(0,4):
for brightness in range(0,100): # Going from 0 to 100 will give us full off to full on
wiringpi.softPwmWrite(PIN_TO_PWM,brightness) # Change PWM duty cycle
wiringpi.delay(10) # Delay for 0.2 seconds
for brightness in reversed(range(0,100)):
wiringpi.softPwmWrite(PIN_TO_PWM,brightness)
wiringpi.delay(10)