diff --git a/poll.py b/poll.py
new file mode 100644
index 0000000..8e35ff0
--- /dev/null
+++ b/poll.py
@@ -0,0 +1,50 @@
+import json
+import RainEagle
+import sys
+import time
+
+if __name__ == '__main__':
+	with open('eagle.config') as fp:
+		conf = json.load(fp)
+
+	raineagle = RainEagle.Eagle( debug=0 , addr=conf['addr'],
+		username = conf['username'],
+		password = conf['password']
+	)
+
+	try:
+		macid = conf['macid']
+	except KeyError:
+		ret_data = raineagle.list_devices()
+		#print 'list devices:', `ret_data`
+		macid = ret_data['DeviceInfo']['DeviceMacId']
+		#print "device MacID = ", macid
+		print >>sys.stderr, 'macid not specified, detected:', `macid`
+
+	#macid = '0xd8d5b90000001346'
+
+	#print `raineagle.get_instantaneous_demand(macid)`
+	#print `raineagle.get_summation_values(macid, interval='day')`
+	#print `raineagle.get_fast_poll_status(macid)`
+	interval = conf.get('interval', 10)
+	s = time.time()
+	while True:
+		usage_data = raineagle.get_usage_data(macid)
+		if False:
+			print `usage_data`
+		else:
+			#{u'message_queue': u'active', u'threshold_lower_demand': u'-2.000000', u'fast_poll_frequency': u'0x00', u'summation_delivered': u'65374.021', u'message_read': u'Y', u'price': u'0.2700', u'demand_timestamp': u'1571842464', u'fast_poll_endtime': u'0x00000000', u'meter_status': u'Connected', u'message_confirm_required': u'N', u'message_confirmed': u'N', u'demand_units': u'kW', u'summation_units': u'kWh', u'demand': u'0.9980', u'price_units': u'840', u'message_timestamp': u'946684800', u'price_label': u'Set by User', u'threshold_upper_demand': u'9.155000', u'message_id': u'0', u'summation_received': u'0.000'}
+			fields = [ 'demand_timestamp', 'meter_status', 'demand',
+			    'threshold_upper_demand', 'demand_units', 'summation_delivered',
+			    'summation_received', 'summation_units', ]
+			print '\t'.join(usage_data[x].encode('utf8').encode('string-escape') for x in fields)
+		e = time.time()
+		s += interval
+		delay = s - e
+		print `delay`
+		if delay <= 0:
+			s = time.time()
+			continue
+
+		time.sleep(delay)
+	#print `raineagle.get_time_source(macid)`