old_contents: import mraa
  #pin = mraa.Pwm(18)
  pin19 = mraa.Pwm(19)
  
  pin1 = mraa.Gpio(1)
  pin1.dir(mraa.DIR_OUT)
  
  
  while True:
  	pin1.write(0)
  	pin19.period_us(200)      
  	pin19.enable(True)
  	pin19.write(0.1)  
  
new_contents: import mraa
  #pin = mraa.Pwm(18)
  pin19 = mraa.Pwm(19)
  
  pin1 = mraa.Gpio(1)
  pin1.dir(mraa.DIR_OUT)
  
  
  while True:
  	pin1.write(0)
  	pin19.period_us(300)      
  	pin19.enable(True)
  	pin19.write(0.1)  
  
subject: Update stepper1.py