diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c9c8b92
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+settings.json
+__pycache__/
+*.pyc
diff --git a/bot.py b/bot.py
index c670291..f17810f 100644
--- a/bot.py
+++ b/bot.py
@@ -3,10 +3,13 @@ import datetime
 import json
 import time
 from tempfile import NamedTemporaryFile
+import logging
 
 import requests
 import schedule
 
+logging.basicConfig(format='%(levelname)s %(name)s:%(message)s', level=logging.DEBUG)
+log = logging.getLogger(__name__)
 
 def parse_time(string):
 	return datetime.datetime.strptime(string, "%Y-%m-%d %H:%M:%S")
@@ -26,26 +29,31 @@ def get_status_text(src=get_status):
 def post(chats, text, token):
 	url = "https://api.telegram.org/bot{token}/sendMessage".format(token=token)
 	for chat in chats:
-		requests.post(url, data={'chat_id': chats[chat], "text": text})
+		response = requests.post(url, data={'chat_id': chats[chat], "text": text})
+		log.info("post message: %s", response.status_code)
 
 def main(args={"config": "settings.json"}):
-	text = get_status_text()
+	log.info("run once")
 	config = json.load(open(args['config']))
+	text = get_status_text()
 	post(config['groups'], text, config['token'])
 	post_plot(config)
 
 def loop(args={"config": "settings.json"}):
+	log.info("prepare loop")
 	config = json.load(open(args['config']))
+	setup(config)
 	while True:
 		try:
 			do_loop(config)
 		except Exception as e:
-			print(e, e.args)
+			log.exception(e)
 			time.sleep(config['sleep'])
 
 def do_loop(config):
 	last_state = None
 	while True:
+		log.info("enter loop")
 		changed = False
 		new_state = get_status()
 		if last_state is None:
@@ -56,31 +64,30 @@ def do_loop(config):
 			last_state = new_state
 			text = get_status_text(lambda: last_state)
 			post(config["groups"], text, config["token"])
+		log.info("run pending tasks")
 		schedule.run_pending()
+		log.info("sleep")
 		time.sleep(config['sleep'])
 
 def post_plot(config):
 	from plot import get_plot
-	target= NamedTemporaryFile()
-	image_url = 'https://api.telegram.org/bot{token}/sendPhoto'.format(token=config['token'])
-	files = {'photo': get_plot(target)}
-	for chat in config['groups']:
-		files['photo'].seek(0)
-		values = {"chat_id":config['groups'][chat]}
-		r = requests.post(image_url, files=files, data=values)
-		print(r)
+	with NamedTemporaryFile() as target:
+		image_url = 'https://api.telegram.org/bot{token}/sendPhoto'.format(token=config['token'])
+		files = {'photo': get_plot(target)}
+		for chat in config['groups']:
+			files['photo'].seek(0)
+			values = {"chat_id":config['groups'][chat]}
+			r = requests.post(image_url, files=files, data=values)
+			log.info("post photo: %s", r.status_code)
 
 def setup(config):
-	#schedule.every(30).seconds.do(lambda: post_plot(config))
-	#schedule.every().week.do(post_plot)
-	schedule.every().day.do(lambda: post_plot(config))
+	schedule.every(config['photo_interval']).seconds.do(lambda: post_plot(config))
 
 if __name__ == "__main__":
 	parser = argparse.ArgumentParser(description="DoorStateBot")
 	parser.add_argument("--config", "-c", default="settings.json", help="Configuration file")
 	parser.add_argument("--loop", "-l", action="store_true", help="Loop")
 	args = parser.parse_args()
-	setup(vars(args))
 	if args.loop:
 		loop(vars(args))
 	else:
diff --git a/settings.sample.json b/settings.sample.json
index 62fa900..d57280e 100644
--- a/settings.sample.json
+++ b/settings.sample.json
@@ -1,6 +1,7 @@
 {
 	"token": "BOTID:TOKEN",
 	"sleep": 30,
+	"photo_interval": 30,
 	"groups":{
 		"wiaidoor": -12357567
 	},