Software-Defined Virtual Testbed for IoT Systems

Listing 1

IoT application used in the use case.

import mosquitto

from upm import pyupm_bmp280 as sensorObj

Import  ...

id = 7504343

def main()  :

mqttc = mosquitto.Mosquitto()

mqttc.connect(＇＇172.17.88.230＇＇, 1883, 60)

# Instantiate a BME280 instance using default i2c bus and address

sensor = sensorObj.BME280()

while (1):

sensor.update()

json_template =   ’time’  : datetime.datetime.now().strftime(＇＇%Y–%m–%d

%H:%M:%SZ＇＇ ),

’id’: str(id),

’temp’: sensor.getTemperature()

mqttc.publish(＇＇/bme＇＇,

json.dumps(json_template), 0, True)

time.sleep(1)

if _ _name_ _ == ’_ _main_ _’:

main()