diff --git a/README.md b/README.md
index 33aa399..72ffa70 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,10 @@
 # Rapsberry Pi MQTT monitor
-Python 2 script to check cpu load, cpu temperature and free space,
+Python 2 script to check cpu load, cpu temperature, free space, voltage and system clock speed
 on a Raspberry Pi computer and publish the data to a MQTT server.
 
+I wrote this so I can monitor my raspberries at home with home assistant. The script is writen for python 2
+as when I wrote it one of the used python modules was not available for python 3. (if the modules are available for python 3 now the script shuold have no problems running on python 3 - plan to check that in the near feature)
+
 # Installation:
 
 Install these two modules needed for the script
diff --git a/cpu_mqtt.py b/cpu_mqtt.py
index 9072599..3cca7fb 100644
--- a/cpu_mqtt.py
+++ b/cpu_mqtt.py
@@ -60,6 +60,7 @@ def publish_to_mqtt (cpu_load, cpu_temp, used_space, voltage, sys_clock_speed):
 		time.sleep(1)
 		client.publish(mqtt_topic_prefix+"/"+hostname+"/voltage", voltage, qos=1)
 		time.sleep(1)
+		client.publish(mqtt_topic_prefix+"/"+hostname+"/sys_clock_speed", sys_clock_speed, qos=1)
 		#disconect from mqtt server
 		client.disconnect()