Proof of concept : wireless tethering on the E-M1, in camera control mode

cameraCtrlTether.py

# -*- coding: utf-8 -*-

from urllib import urlretrieve
from urllib2 import urlopen
import re
import time

urlopen('http://192.168.0.10/switch_cammode.cgi?mode=play').read()
page = urlopen('http://192.168.0.10/get_imglist.cgi?DIR=/DCIM').read()
m = re.findall('(DCIM.*)',page)[0].split(',')[1]
page = urlopen('http://192.168.0.10/get_imglist.cgi?DIR=/DCIM/'+m).read()
startList = page.split() # List of pictures on the camera
curnumdata = urlopen('http://192.168.0.10/get_dcffilenum.cgi').read()
curnum=re.search('(<dcffile>)(.*)(</dcffile>)',curnumdata).group(2) # Number of most recent image
lastnum = curnum

# Set the camera to control mode
urlopen('http://192.168.0.10/switch_cammode.cgi?mode=shutter').read()

# Check every 5 minutes whether a picture was taken or not
while lastnum==curnum:
    time.sleep(300)
    # Set play mode, you can't ask the cam for info if in shutter mode
    urlopen('http://192.168.0.10/switch_cammode.cgi?mode=play').read()
    curnumdata = urlopen('http://192.168.0.10/get_dcffilenum.cgi').read()
    # Restore shutter mode
    urlopen('http://192.168.0.10/switch_cammode.cgi?mode=shutter').read()
    curnum=re.search('(<dcffile>)(.*)(</dcffile>)',curnumdata).group(2)


# If a picture was taken, set mode to play, then grab list of files
urlopen('http://192.168.0.10/switch_cammode.cgi?mode=play').read()
page = urlopen('http://192.168.0.10/get_imglist.cgi?DIR=/DCIM').read()
m = re.findall('(DCIM.*)',page)[0].split(',')[1]
page = urlopen('http://192.168.0.10/get_imglist.cgi?DIR=/DCIM/'+m).read()
curList = page.split()

# Download each new file
for item in curList:
    if item not in startList:
        path = 'http://192.168.0.10' + item.split(',')[0] + '/' + item.split(',')[1]
        img = item.split(',')[1]
        print 'Retrieving ... ' + img
        urlretrieve(path,img)