text: ##################################################
  #  This is a library for the Adafruit DRV2605L Haptic Driver
  #
  #  ----> http://www.adafruit.com/products/2305
  # 
  #  Check out the links above for our tutorials and wiring diagrams
  #  This motor/haptic driver uses I2C to communicate
  #
  #  Adafruit invests time and resources providing this open source code,
  #  please support Adafruit and open-source hardware by purchasing
  #  products from Adafruit!
  #
  #  Original Arduino library Written by Limor Fried/Ladyada for Adafruit Industries.
  #  Python module written by Sean Mealin
  #  MIT license, all text above must be included in any redistribution
  ##################################################
  
  import time
  
  from Adafruit_DRV2605 import *
  
  drv = Adafruit_DRV2605(busnum=2)
  
  ### setup ###
  drv.begin()
  
  # I2C trigger by sending 'go' command
  drv.setMode(DRV2605_MODE_INTTRIG)  # default, internal trigger when sending GO command
  
  drv.selectLibrary(1)
  drv.setWaveform(0, 84)  # ramp up medium 1, see datasheet part 11.2
  drv.setWaveform(1, 1)  # strong click 100%, see datasheet part 11.2
  drv.setWaveform(2, 0)  # end of waveforms
  
  ### loop ###
  while(True):
  	drv.go()
  	time.sleep(1)
  # end while(True)
  