Im using a bash script to read values and send them to mqtt broker.
Created MQTT Sensors to read the mqtt values
Maybe you have to change some things, i got this script from internet and was already good for my needs.
change mqtthost, user, password and topic to your needs
sudo apt-get install build-essential python-dev python-pip
sudo pip install paho-mqtt
sudo pip install psutil
sudo reboot
cd /home/pi/
nano systemdata.py
#References: Thanks to these resoruces!
#http://www.isendev.com/app/entry/39
#https://pythonhosted.org/psutil/
import sys, psutil, datetime, paho.mqtt.client as mqtt, json
from time import gmtime, strftime
import os
def getVoltage():
try:
res1 = os.popen('vcgencmd measure_volts core').readline()
tmp2 = res1.replace("volt=","")
tmp2 = tmp2.replace("V","")
tmp2 = tmp2.replace("\n","")
return tmp2
except:
return 0
def getCPUtemperature():
try:
res = os.popen('vcgencmd measure_temp').readline()
tmp1 = res.replace("temp=","")
tmp1 = tmp1.replace("'","")
tmp1 = tmp1.replace("C","")
#print tmp1
return tmp1
except:
return 0
def bytes2human(n):
# http://code.activestate.com/recipes/577972-disk-usage/
symbols = ('K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
prefix = {}
for i, s in enumerate(symbols):
prefix[s] = 1 << (i+1)*10
for s in reversed(symbols):
if n >= prefix[s]:
value = float(n) / prefix[s]
return '%.1f%s' % (value, s)
return "%sB" % n
temp1 = int(float(getCPUtemperature()))
cputemp=temp1
#cputemp = 9.0/5.0*temp1+32
voltage = getVoltage()
currtime = strftime("%H:%M:%S - %d-%m-%Y")
boottime = datetime.datetime.fromtimestamp(psutil.boot_time()).strftime("%H:%M:%S - %d-%m-%Y")
topic = "YOUR TOPIC YOU WANT USE"
cpupercent = psutil.cpu_percent(interval=1)
vmem = psutil.virtual_memory().percent
diskusage = psutil.disk_usage('/').percent
disktotal = bytes2human( psutil.disk_usage('/').total )
payload = { 'datetimedatacollected': currtime,
'cpuusage': cpupercent, 'boottime': boottime,
'virtualmem': vmem, 'diskusage': diskusage,
'volt': voltage, 'cputemp': cputemp, 'disktotal': disktotal }
mqtthost = "HOST IP"
mqttuser = "USERNAME"
mqttpwd = "PASSWORD"
client = mqtt.Client()
client.username_pw_set(mqttuser, mqttpwd)
client.connect(mqtthost, 1883, 60)
payload_json = json.dumps(payload)
print (payload_json)
persistant_data = True
client.publish(topic, payload_json, 0, persistant_data)
client.disconnect()
sys.exit()
sudo crontab -e
*/5 * * * * python /home/pi/systemdata.py
