from machine import Pin, PWM
import time
import math
_init()

LedPinB = 15
LedPinG = 14
LedPinR = 13

ledB = Pin(LedPinB, Pin.OUT)
ledG = Pin(LedPinG, Pin.OUT)
ledR = Pin(LedPinR, Pin.OUT)

pwmB = PWM(ledB)
pwmG = PWM(ledG)
pwmR = PWM(ledR)

pwmB.freq(500)
pwmG.freq(500)
pwmR.freq(500)

while True:
    for i in range(100):
        pwmB.duty(int(math.sin(i / 50 * math.pi) * 500 + 500))
        pwmG.duty(int(math.sin(i / 75 * math.pi) * 500 + 500))
        pwmR.duty(int(math.sin(i / 25 * math.pi) * 500 + 500))
        time.sleep_ms(30)