import machine
from machine import Pin
import time

ANeg = Pin(18,Pin.OUT)
APos = Pin(5,Pin.OUT)
BNeg = Pin(16,Pin.OUT)
BPos = Pin(17,Pin.OUT)
"""
while True:
  APos.value(1)
  BPos.value(0)
  ANeg.value(0)
  BNeg.value(0)
  time.sleep_ms(100)

  APos.value(0)
  BPos.value(1)
  ANeg.value(0)
  BNeg.value(0)
  time.sleep_ms(100)

  APos.value(0)
  BPos.value(0)
  ANeg.value(1)
  BNeg.value(0)
  time.sleep_ms(100)

  APos.value(0)
  BPos.value(0)
  ANeg.value(0)
  BNeg.value(1)
  time.sleep_ms(100)
"""
while True:
  APos.value(0)
  BPos.value(0)
  ANeg.value(0)
  BNeg.value(1)
  time.sleep_ms(100)

  APos.value(0)
  BPos.value(0)
  ANeg.value(1)
  BNeg.value(0)
  time.sleep_ms(100)

  APos.value(0)
  BPos.value(1)
  ANeg.value(0)
  BNeg.value(0)
  time.sleep_ms(100)

  APos.value(1)
  BPos.value(0)
  ANeg.value(0)
  BNeg.value(1)
  time.sleep_ms(100)
  #"""