led_gauge_demo.py

#!/usr/bin/env python
import pigpio
from time import sleep
pi = pigpio.pi()

# Leds on Gpio 13, 19, 26

while 1:
        # On Broadcom Gpio12 (physical pin 32) we have a analog gauge
        pi.hardware_PWM(12, 2000, 250000) 
        pi.write(13, 1)
        sleep(1)
        pi.write(13, 0)

        pi.hardware_PWM(12, 2000, 500000) 
        pi.write(19, 1)
        sleep(1)
        pi.write(19, 0)

        pi.hardware_PWM(12, 2000, 750000) 
        pi.write(26, 1)
        sleep(1)
        pi.write(26, 0)