Analog Joystick / MCP3008 / Raspberry Pi

joystick.py

#!/usr/bin/python

import spidev
import time
import os

spi = spidev.SpiDev()
spi.open(0,0)
spi.max_speed_hz=1000000

def spiChannel(channel):
  adc = spi.xfer2([1,(8+channel)<<4,0])
  data = ((adc[1]&3) << 8) + adc[2]
  return data

while True:

  button = spiChannel(0)
  xas = spiChannel(1)
  yas = spiChannel(2)

  print("X-as: {} Y-as: {} Button: {}".format(xas,yas,button))

  time.sleep(0.5)