User:Birgit bachler/BBB

For this thematic project I will make use of the telephone as a dying medium for networking,
and belhuizen are some last public resorts for these machines.
We are very much used to actively using the Internet by visiting websites rather than them visiting us.
Now the Internet is calling you, in the belhuis.
Scraping all this information you want or do not want to find
(sources yahoo answers, craigslist, facebook, brandmonitor etc etc)
and letting this information find you.

Example1: "Ring ring"... "Its a shame you don't know what your worth! You've let pathetic guys ruin you! \nYour better than that! \nIs your BEAUTY, your curse!?"
Example2: "Ring ring".... "Just to be clear, I'm not really looking for a bodyguard (that's a lyric from the song haha!) just a friend named Betty."

Howto

• Data-scraping: python with feedparser etc (facebook, craigslist...)
• Mastercontrolprogram.py (state-machine) + PySerial + Arduino >> Phone
• Text-to-Speech: festival, text2wave on commandline with the "American female"
• Phone: Mod-copper-phone with 2 inputs (1 audio, 1 ring) and 1 output (fork)

* http://www.troglodisme.com/?p=42
* http://brohogan.blogspot.com/2009/12/telephone-interface.html

code dump arduino

#include <avr/io.h>
#include <avr/interrupt.h>

#define gabelPin 4
#define klingelEn 7
#define klingelA 5
#define klingelB 6
#define klingelPeriod 2500 //1250

void setup(void){
  pinMode(gabelPin, INPUT);
  digitalWrite(gabelPin, HIGH);
  pinMode(klingelEn, OUTPUT);
  pinMode(klingelA, OUTPUT);
  pinMode(klingelB, OUTPUT);
  sei();

  TCCR1B = (_BV(CS12)); //timer at Fcpu/256  
  Serial.begin(115200);

}

void scheduleTimerInterrupt(void){
  OCR1A = (unsigned int)TCNT1 + (unsigned int)klingelPeriod; 
}

void startKlingel(void){
  scheduleTimerInterrupt();
  TIFR1 |= _BV(OCF1A); 
  TIMSK1 |= _BV(OCIE1A); 
  digitalWrite(klingelEn, HIGH);
  digitalWrite(klingelA, HIGH);
  digitalWrite(klingelB, LOW);
}

void stopKlingel(void){
  TIMSK1 &= ~_BV(OCIE1A); 
  digitalWrite(klingelEn, LOW);
}

ISR(TIMER1_COMPA_vect){
  PORTD ^= (_BV(5) | _BV(6));
  scheduleTimerInterrupt();
}

int gabel = 0;

void loop(void){
  int g;
  if (Serial.available()){
    switch (Serial.read()){
    case 75: //K
      startKlingel();
      break;
    case 107: //k
      stopKlingel();
      break;
    case 114:  //r
      g = digitalRead(gabelPin);
      if(g){
        Serial.write("g\n");
      }
      else {
        Serial.write("G\n");
      }
      break;
    }
  }
}

code dump python

# 7th december 2010
# A telephone state machine with pygame
# state 1: WAIT, state 2: RING, state 3: PLAY, state 4: OVER, state5: RING2(on/on/off)
# simulate a hook with your hand on the space-key
# 3 testing sound files: ringringring.ogg for ring, offthehook.ogg for "besetzt", test.ogg for speech
# phone rings after random time (here, 3-5 seconds), gives up after 10 seconds
# TO DO: glob random files with feeder


#!/usr/bin/python

import sys, pygame, time, random, os
import serial

import glob


  
device = glob.glob("/dev/ttyUSB*")[0]
time.sleep(1)
arduino = serial.Serial(device, 115200, timeout=1)


time.sleep(2)

pygame.mixer.init(frequency = 44100)
pygame.init()



width, height = (640, 480)
screen = pygame.display.set_mode((width, height))
clock = pygame.time.Clock()



offthehook = pygame.mixer.Sound("offthehook.ogg")

WAIT=1
RING=2
RING2=5
PLAY=3
OVER=4


rtime = random.randint(11,12)
state = WAIT
pickup = False
statetime = time.time()
ringing = False
shringing = False


def getPickup():
  arduino.write('r')
  resp=arduino.readline().strip()
  return resp == 'G'

#  return not pygame.key.get_pressed()[pygame.K_SPACE]
#  return line

def newMessage():
  messagelist = glob.glob("messages/*.ogg")
  rmes = random.randint(0, len(messagelist)-1)
  return messagelist[rmes]

themessage = newMessage()

while True:
  for event in pygame.event.get():
    if event.type == pygame.QUIT or \
      (event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE):
        sys.exit()

  pygame.draw.rect(screen, (0, 0, 0), (0,0,width,height), 0)
  p = getPickup()
  if p != pickup:
    pickup = p
    # pickup event
    if state == WAIT and pickup:
      state = OVER
      statetime = time.time()
      offthehook.play(loops=-1)
    if state == OVER and not pickup:
      state = WAIT
      statetime = time.time()
      pygame.mixer.stop()
    if state == RING and pickup:
      state = PLAY
      statetime = time.time()
      arduino.write('k')
      pygame.mixer.stop()  
      message = pygame.mixer.Sound(themessage)
      message.play()
      themessage = newMessage()
    if state == PLAY and not pickup:
      state = WAIT
      statetime = time.time()
      pygame.mixer.stop() 
  if state == PLAY and not pygame.mixer.get_busy():
    state = OVER
    statetime = time.time()
    offthehook.play(loops=-1)

  timeinstate = time.time() - statetime

  print state, timeinstate

  if state == WAIT and timeinstate >= rtime:
    rtime = random.randint(11,12)
    state = RING
    statetime = time.time()
    pygame.mixer.stop()
    arduino.write('K')
    ringing = True

  elif state == RING:
    # moduloring
    shringing = int(timeinstate)%3 != 2
    if ringing != shringing:
      if shringing:
        arduino.write('K')
      else:
        arduino.write('k')
      ringing = shringing

    if timeinstate >= 10:
      state = WAIT
      statetime = time.time()
      arduino.write('k')
      pygame.mixer.stop()
  

  pygame.display.flip()
  clock.tick(30)