Test AllThingsTalk & Zerynth & NodeESP32

import streams
from mqtt import mqtt
from wireless import wifi

# import wifi support
from espressif.esp32net import esp32wifi as wifi_driver

streams.serial()
sleep(1000)
# init the wifi driver!
# The driver automatically registers itself to the wifi interface
# with the correct configuration for the selected device
wifi_driver.auto_init()
sleep(3000)

att_device_id = "<DeviceID>"
att_device_asset = "<DeviceAsset>"
att_device_token = "<DeviceToken>"


def send_sample(obj):
    print("publishing: ", obj)
    client.publish("device/"+att_device_id+"/asset/"+att_device_asset+"/state", "0|"+str(obj))
    
print("Establishing Link...")
try:
    wifi.link("<SSID>",wifi.WIFI_WPA2,"<PASSWORD>")
except Exception as e:
    print("ooops, something wrong while linking :(", e)
    while True:
        sleep(1000)

try:
    # set the mqtt id to "zerynth-mqtt"
    client = mqtt.Client("zerynth-mqtt",True)
    client.set_username_pw(att_device_token,"Zerynth")
    for retry in range(10):
        try:
            print(retry)
            client.connect("api.allthingstalk.io", 60)
            print("connected or not...") # no exception at this moment !
            break
        except Exception as e:
            print(e)
    print("connected.")
except Exception as e:
    print(e)
    
while True:
    sleep(3000)
    x = random(0,50)
    send_sample(x)
    
print("End of program")