Simple GPIO for RPi2 + relay

relay.py

# -*- coding: utf8 -*-
# sudo python relay.py

import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BOARD)
GPIO.setup(38, GPIO.OUT)
GPIO.setup(40, GPIO.OUT)

print 'Usage:'
print '  1 on / 1 off / 2 on / 2 off'

gpios = {'1': 38, '2': 40}
outs  = {'on': 1, 'off': 0}

while True:
    x = raw_input('> ')
    xs = x.strip().split()
    if xs[0] in gpios and xs[1] in outs:
        GPIO.output(gpios[xs[0]], outs[xs[1]])
    else:
        print 'Invalid command'