friso/rpi-mqtt-monitor
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added memory and swap in %

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This commit is contained in:
Hristo Jelev
2020-04-28 23:44:35 +03:00
parent 4d1ecd5632
commit f4f404f0c9
1 changed files with 20 additions and 3 deletions
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23
rpi-cpu2mqtt.py
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@@ -31,7 +31,6 @@ def check_cpu_load():
cores = subprocess.Popen("nproc", shell=True, stdout=subprocess.PIPE).communicate()[0]
cpu_load = p.split("average:")[1].split(",")[0].replace(' ', '')
cpu_load = float(cpu_load)/int(cores)*100
return cpu_load
def check_voltage():
@@ -40,6 +39,18 @@ def check_voltage():
voltage = voltage.strip()[:-1]
return voltage
def check_swap():
full_cmd = "free -t | awk 'NR == 3 {print $3/$2*100}'"
swap = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
swap = round(float(swap), 1)
return swap
def check_memory():
full_cmd = "free -t | awk 'NR == 2 {print $3/$2*100}'"
memory = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
memory = round(float(memory), 1)
return memory
def check_cpu_temp():
full_cmd = "/opt/vc/bin/vcgencmd measure_temp"
p = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
@@ -51,7 +62,7 @@ def check_sys_clock_speed():
return subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
def publish_to_mqtt (cpu_load, cpu_temp, used_space, voltage, sys_clock_speed):
def publish_to_mqtt (cpu_load, cpu_temp, used_space, voltage, sys_clock_speed, swap, memory):
#connect to mqtt server
client = paho.Client()
client.username_pw_set(mqtt_user, mqtt_password)
@@ -66,6 +77,10 @@ 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+"/swap", swap, qos=1)
time.sleep(1)
client.publish(mqtt_topic_prefix+"/"+hostname+"/swap", memory, 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()
@@ -77,6 +92,8 @@ if __name__ == '__main__':
used_space = check_used_space('/')
voltage = check_voltage()
sys_clock_speed = check_sys_clock_speed()
swap = check_swap()
memory = check_memory()
#Publish messages to MQTT
publish_to_mqtt(cpu_load, cpu_temp, used_space, voltage, sys_clock_speed)
publish_to_mqtt(cpu_load, cpu_temp, used_space, voltage, sys_clock_speed, swap, memory)