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main.py
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main.py
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#! /usr/bin/env python
import os
import random
import time
from Arduino import *
import alsaaudio
import wave
import random
from creds import *
import requests
import json
import re
from memcache import Client
#Settings
button = 203 #GPIO Pin with button connected
lights = [198, 199] # GPIO Pins with LED's conneted
# device = "plughw:CARD=Device,DEV=0" # Name of your microphone/soundcard in arecord -L
#Setup
recorded = False
servers = ["127.0.0.1:11211"]
mc = Client(servers, debug=1)
path = os.path.realpath(__file__).rstrip(os.path.basename(__file__))
def internet_on():
print "Checking Internet Connection"
try:
r =requests.get('https://api.amazon.com/auth/o2/token')
print "Connection OK"
return True
except:
print "Connection Failed"
return False
def gettoken():
token = mc.get("access_token")
refresh = refresh_token
if token:
return token
elif refresh:
payload = {"client_id" : Client_ID, "client_secret" : Client_Secret, "refresh_token" : refresh, "grant_type" : "refresh_token", }
url = "https://api.amazon.com/auth/o2/token"
r = requests.post(url, data = payload)
resp = json.loads(r.text)
mc.set("access_token", resp['access_token'], 3570)
return resp['access_token']
else:
return False
def alexa():
digitalWrite(lights[0], HIGH)
url = 'https://access-alexa-na.amazon.com/v1/avs/speechrecognizer/recognize'
headers = {'Authorization' : 'Bearer %s' % gettoken()}
d = {
"messageHeader": {
"deviceContext": [
{
"name": "playbackState",
"namespace": "AudioPlayer",
"payload": {
"streamId": "",
"offsetInMilliseconds": "0",
"playerActivity": "IDLE"
}
}
]
},
"messageBody": {
"profile": "alexa-close-talk",
"locale": "en-us",
"format": "audio/L16; rate=16000; channels=1"
}
}
with open(path+'recording.wav') as inf:
files = [
('file', ('request', json.dumps(d), 'application/json; charset=UTF-8')),
('file', ('audio', inf, 'audio/L16; rate=16000; channels=1'))
]
r = requests.post(url, headers=headers, files=files)
if r.status_code == 200:
for v in r.headers['content-type'].split(";"):
if re.match('.*boundary.*', v):
boundary = v.split("=")[1]
data = r.content.split(boundary)
for d in data:
if (len(d) >= 1024):
audio = d.split('\r\n\r\n')[1].rstrip('--')
with open(path+"response.mp3", 'wb') as f:
f.write(audio)
digitalWrite(lights[1], LOW)
# os.system('mpg123 -q {}1sec.mp3 {}response.mp3 {}1sec.mp3'.format(path, path, path))
os.system('madplay {}1sec.mp3 {}response.mp3 {}1sec.mp3 -o wave:- | aplay -D "plughw:CARD=Device,DEV=0" > /dev/null 2>&1'.format(path, path, path))
digitalWrite(lights[0], LOW)
else:
digitalWrite(lights[1], LOW)
for x in range(0, 3):
time.sleep(.2)
digitalWrite(lights[1], HIGH)
time.sleep(.2)
digitalWrite(lights[1], LOW)
def start():
last = digitalRead(button)
while True:
val = digitalRead(button)
while(digitalRead(button)==0):
# we wait for the button to be pressed
delay(10)
digitalWrite(lights[1], HIGH)
inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NORMAL, device)
inp.setchannels(1)
inp.setrate(16000)
inp.setformat(alsaaudio.PCM_FORMAT_S16_LE)
inp.setperiodsize(500)
audio = ""
while(digitalRead(button)==1): # we keep recording while the button is pressed
l, data = inp.read()
if l:
audio += data
rf = open(path+'recording.wav', 'w')
rf.write(audio)
rf.close()
inp = None
alexa()
if __name__ == "__main__":
pinMode(button, INPUT)
pinMode(lights[0], OUTPUT)
pinMode(lights[1], OUTPUT)
digitalWrite(lights[0], LOW)
digitalWrite(lights[1], LOW)
while internet_on() == False:
print "."
token = gettoken()
os.system('madplay {}1sec.mp3 {}hello.mp3 -o wave:- | aplay -D "plughw:CARD=Device,DEV=0" > /dev/null 2>&1'.format(path, path))
for x in range(0, 3):
time.sleep(.1)
digitalWrite(lights[0], HIGH)
time.sleep(.1)
digitalWrite(lights[0], LOW)
start()