The Official Raspberry Pi Projects Book - Projects_Book_v4

raspberrypi.org/magpi The Official Raspberry Pi Projects Book 117

Tutorial

raspberrypi.org/magpi The Official Raspberry Pi Projects Book 117

There are a few tutorials on how to turn your
Raspberry Pi into an Amazon Echo using Amazon
Alexa. However, AlexaPi (magpi.cc/2kiyOxO) is the
easiest way to get Amazon Alexa on your Raspberry
Pi. The project has prepared everything to set up
Alexa Voice Services on your Pi in a streamlined
and simple manner. The hardest part is setting up
your Amazon Developer account and gathering your
credentials (and really, that’s not that hard!).
At this point, with your speaker and your
microphone plugged into your Pi, you should be able
to run Alexa on your GoPiGo, just as you would on
an Amazon Echo. Ask it for a news update: “Alexa,
what’s the news?”

ALEXA POWERED ROBOT

from flask import Flask

import gopigo

import time

app = Flask(__name__)

@app.route('/')

def index():

return 'Hello world'

@app.route('/forward')

def forward():

print("Forward!")

gopigo.fwd() # Send the GoPiGo Forward

time.sleep( 1 ) # for 1 second

gopigo.stop() # then stop the GoPiGo

return 'Alexabot moved forward!'

@app.route('/backward')

def backward():

print("Backward!")

gopigo.bwd() # Send the GoPiGo Backward

time.sleep( 1 ) # for 1 second

gopigo.stop() # then stop the GoPiGo.

return 'Backward!'

@app.route('/left')

def left():

print("Left!")

gopigo.left()

time.sleep( 1 )

gopigo.stop()

return 'Left!'

@app.route('/right')

def right():

print("Right!")

gopigo.right()

time.sleep( 1 )

gopigo.stop()

return 'Right!'

@app.route('/dance')

def dance():

print("Dance!")

for each in range( 0 , 5 ):

gopigo.right()

time.sleep(0.25)

gopigo.left()

time.sleep(0.25)

gopigo.bwd()

time.sleep(0.25)

gopigo.stop()

return 'Dance!'

@app.route('/coffee')

def coffee():

print("Coffee!")

return 'coffee!'

if __name__ == '__main__':

app.run(debug=True, host='0.0.0.0')

Alexabot.py

Language

>PYTHON

DOWNLOAD:

magpi.cc/2kiFlZz

Figure 1 An example of how to build your own command