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| #!/usr/bin/env python
# created by chris@drumminhands.com
# see instructions at http://www.drumminhands.com/2014/06/15/raspberry-pi-photo-booth/
import os
import glob
import time
import traceback
from time import sleep
import RPi.GPIO as GPIO
import picamera # http://picamera.readthedocs.org/en/release-1.4/install2.html
import atexit
import sys
import socket
import pygame
import pytumblr # https://github.com/tumblr/pytumblr
import config
from signal import alarm, signal, SIGALRM, SIGKILL
########################
### Variables Config ###
########################
led1_pin = 15 # LED 1
led2_pin = 19 # LED 2
led3_pin = 21 # LED 3
led4_pin = 23 # LED 4
button1_pin = 22 # pin for the big red button
button2_pin = 18 # pin for button to shutdown the pi
button3_pin = 16 # pin for button to end the program, but not shutdown the pi
post_online = 1 # default 1. Change to 0 if you don't want to upload pics.
total_pics = 4 # number of pics to be taken
capture_delay = 2 # delay between pics
prep_delay = 3 # number of seconds at step 1 as users prep to have photo taken
gif_delay = 100 # How much time between frames in the animated gif
restart_delay = 5 # how long to display finished message before beginning a new session
monitor_w = 800
monitor_h = 480
transform_x = 640 # how wide to scale the jpg when replaying
transfrom_y = 480 # how high to scale the jpg when replaying
offset_x = 80 # how far off to left corner to display photos
offset_y = 0 # how far off to left corner to display photos
replay_delay = 1 # how much to wait in-between showing pics on-screen after taking
replay_cycles = 2 # how many times to show each photo on-screen after taking
test_server = 'www.google.com'
real_path = os.path.dirname(os.path.realpath(__file__))
# Setup the tumblr OAuth Client
client = pytumblr.TumblrRestClient(
config.consumer_key,
config.consumer_secret,
config.oath_token,
config.oath_secret,
);
####################
### Other Config ###
####################
GPIO.setmode(GPIO.BOARD)
GPIO.setup(led1_pin,GPIO.OUT) # LED 1
GPIO.setup(led2_pin,GPIO.OUT) # LED 2
GPIO.setup(led3_pin,GPIO.OUT) # LED 3
GPIO.setup(led4_pin,GPIO.OUT) # LED 4
GPIO.setup(button1_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # falling edge detection on button 1
GPIO.setup(button2_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # falling edge detection on button 2
GPIO.setup(button3_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # falling edge detection on button 3
GPIO.output(led1_pin,False);
GPIO.output(led2_pin,False);
GPIO.output(led3_pin,False);
GPIO.output(led4_pin,False); #for some reason the pin turns on at the beginning of the program. why?????????????????????????????????
#################
### Functions ###
#################
def cleanup():
print('Ended abruptly')
GPIO.cleanup()
atexit.register(cleanup)
def shut_it_down(channel):
print "Shutting down..."
GPIO.output(led1_pin,True);
GPIO.output(led2_pin,True);
GPIO.output(led3_pin,True);
GPIO.output(led4_pin,True);
time.sleep(3)
os.system("sudo halt")
def exit_photobooth(channel):
print "Photo booth app ended. RPi still running"
GPIO.output(led1_pin,True);
time.sleep(3)
sys.exit()
def clear_pics(foo): #why is this function being passed an arguments?
#delete files in folder on startup
files = glob.glob(config.file_path + '*')
for f in files:
os.remove(f)
#light the lights in series to show completed
print "Deleted previous pics"
GPIO.output(led1_pin,False); #turn off the lights
GPIO.output(led2_pin,False);
GPIO.output(led3_pin,False);
GPIO.output(led4_pin,False)
pins = [led1_pin, led2_pin, led3_pin, led4_pin]
for p in pins:
GPIO.output(p,True);
sleep(0.25)
GPIO.output(p,False);
sleep(0.25)
def is_connected():
try:
# see if we can resolve the host name -- tells us if there is
# a DNS listening
host = socket.gethostbyname(test_server)
# connect to the host -- tells us if the host is actually
# reachable
s = socket.create_connection((host, 80), 2)
return True
except:
pass
return False
def init_pygame():
pygame.init()
size = (pygame.display.Info().current_w, pygame.display.Info().current_h)
pygame.display.set_caption('Photo Booth Pics')
pygame.mouse.set_visible(False) #hide the mouse cursor
return pygame.display.set_mode(size, pygame.FULLSCREEN)
def show_image(image_path):
screen = init_pygame()
img=pygame.image.load(image_path)
img = pygame.transform.scale(img,(transform_x,transfrom_y))
screen.blit(img,(offset_x,offset_y))
pygame.display.flip()
def display_pics(jpg_group):
# this section is an unbelievable nasty hack - for some reason Pygame
# needs a keyboardinterrupt to initialise in some limited circs (second time running)
class Alarm(Exception):
pass
def alarm_handler(signum, frame):
raise Alarm
signal(SIGALRM, alarm_handler)
alarm(3)
try:
screen = init_pygame()
alarm(0)
except Alarm:
raise KeyboardInterrupt
for i in range(0, replay_cycles): #show pics a few times
for i in range(1, total_pics+1): #show each pic
filename = config.file_path + jpg_group + "-0" + str(i) + ".jpg"
show_image(filename);
time.sleep(replay_delay) # pause
# define the photo taking function for when the big button is pressed
def start_photobooth():
################################# Begin Step 1 #################################
show_image(real_path + "/blank.png")
print "Get Ready"
GPIO.output(led1_pin,True);
show_image(real_path + "/instructions.png")
sleep(prep_delay)
GPIO.output(led1_pin,False)
show_image(real_path + "/blank.png")
camera = picamera.PiCamera()
pixel_width = 500 #use a smaller size to process faster, and tumblr will only take up to 500 pixels wide for animated gifs
pixel_height = monitor_h * pixel_width // monitor_w
camera.resolution = (pixel_width, pixel_height)
camera.vflip = True
camera.hflip = False
camera.saturation = -100 # comment out this line if you want color images
camera.start_preview()
sleep(2) #warm up camera
################################# Begin Step 2 #################################
print "Taking pics"
now = time.strftime("%Y-%m-%d-%H:%M:%S") #get the current date and time for the start of the filename
try: #take the photos
for i, filename in enumerate(camera.capture_continuous(config.file_path + now + '-' + '{counter:02d}.jpg')):
GPIO.output(led2_pin,True) #turn on the LED
print(filename)
sleep(0.25) #pause the LED on for just a bit
GPIO.output(led2_pin,False) #turn off the LED
sleep(capture_delay) # pause in-between shots
if i == total_pics-1:
break
finally:
camera.stop_preview()
camera.close()
########################### Begin Step 3 #################################
print "Creating an animated gif"
if post_online:
show_image(real_path + "/uploading.png")
else:
show_image(real_path + "/processing.png")
GPIO.output(led3_pin,True) #turn on the LED
graphicsmagick = "gm convert -delay " + str(gif_delay) + " " + config.file_path + now + "*.jpg " + config.file_path + now + ".gif"
os.system(graphicsmagick) #make the .gif
print "Uploading to tumblr. Please check " + config.tumblr_blog + ".tumblr.com soon."
if post_online: # turn off posting pics online in the variable declarations at the top of this document
connected = is_connected() #check to see if you have an internet connection
while connected:
try:
file_to_upload = config.file_path + now + ".gif"
client.create_photo(config.tumblr_blog, state="published", tags=["drumminhandsPhotoBooth"], data=file_to_upload)
break
except ValueError:
print "Oops. No internect connection. Upload later."
try: #make a text file as a note to upload the .gif later
file = open(config.file_path + now + "-FILENOTUPLOADED.txt",'w') # Trying to create a new file or open one
file.close()
except:
print('Something went wrong. Could not write file.')
sys.exit(0) # quit Python
GPIO.output(led3_pin,False) #turn off the LED
########################### Begin Step 4 #################################
GPIO.output(led4_pin,True) #turn on the LED
try:
display_pics(now)
except Exception, e:
tb = sys.exc_info()[2]
traceback.print_exception(e.__class__, e, tb)
pygame.quit()
print "Done"
GPIO.output(led4_pin,False) #turn off the LED
if post_online:
show_image(real_path + "/finished.png")
else:
show_image(real_path + "/finished2.png")
time.sleep(restart_delay)
show_image(real_path + "/intro.png");
####################
### Main Program ###
####################
# when a falling edge is detected on button2_pin and button3_pin, regardless of whatever
# else is happening in the program, their function will be run
GPIO.add_event_detect(button2_pin, GPIO.FALLING, callback=shut_it_down, bouncetime=300)
#choose one of the two following lines to be un-commented
GPIO.add_event_detect(button3_pin, GPIO.FALLING, callback=exit_photobooth, bouncetime=300) #use third button to exit python. Good while developing
#GPIO.add_event_detect(button3_pin, GPIO.FALLING, callback=clear_pics, bouncetime=300) #use the third button to clear pics stored on the SD card from previous events
# delete files in folder on startup
files = glob.glob(config.file_path + '*')
for f in files:
os.remove(f)
print "Photo booth app running..."
GPIO.output(led1_pin,True); #light up the lights to show the app is running
GPIO.output(led2_pin,True);
GPIO.output(led3_pin,True);
GPIO.output(led4_pin,True);
time.sleep(3)
GPIO.output(led1_pin,False); #turn off the lights
GPIO.output(led2_pin,False);
GPIO.output(led3_pin,False);
GPIO.output(led4_pin,False);
show_image(real_path + "/intro.png");
while True:
GPIO.wait_for_edge(button1_pin, GPIO.FALLING)
time.sleep(0.2) #debounce
start_photobooth() |
PhotoBooth raspberry PI2
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