#Controller device
client = TBDeviceMqttClient(THINGSBOARD_HOST, ACCESS_TOKEN)
#Call back
def on_attribute_change(client, result, exception):
print(client)
# get client key & values and print it
# junction1_result will be the value
clientObj = result["client"]
junction1_result = clientObj["junction1"]
print(junction1_result)
if exception is not None:
print("Exception: " + str(exception))
else:
print(result)
client.connect()
#client.request_attributes(["junction1", "junction2"], callback=on_attribute_change)
#Poll for changes
while True:
client.request_attributes([
"Edge1_Len", "Edge1_Straight", "Edge1_Right", "Edge2_Len",
"Edge2_Straight", "Edge2_Right"
],
callback=on_attribute_change)
time.sleep(5)
def main():
client = TBDeviceMqttClient("127.0.0.1", "A2_TEST_TOKEN")
client.connect()
client.request_attributes(["atr1", "atr2"], callback=on_attributes_change)
while not client.stopped:
time.sleep(1)
import logging
import time
from tb_device_mqtt import TBDeviceMqttClient
logging.basicConfig(level=logging.DEBUG)
def on_attributes_change(result, exception):
if exception is not None:
print("Exception: " + str(exception))
else:
print(result)
client = TBDeviceMqttClient("127.0.0.1", "A2_TEST_TOKEN")
client.connect()
client.request_attributes(["atr1", "atr2"], callback=on_attributes_change)
while True:
time.sleep(1)
# dependently of request method we send different data back
def on_server_side_rpc_request(client, request_id, request_body):
print(client, request_id, request_body)
if request_body["method"] == "getCPULoad":
client.send_rpc_reply(request_id,
{"CPU percent": psutil.cpu_percent()})
elif request_body["method"] == "getMemoryUsage":
client.send_rpc_reply(request_id,
{"Memory": psutil.virtual_memory().percent})
client = TBDeviceMqttClient("127.0.0.1", "A2_TEST_TOKEN")
client.set_server_side_rpc_request_handler(on_server_side_rpc_request)
client.connect()
# to fetch the latest setting for upload frequency configured on the server
client.request_attributes(shared_keys=["uploadFrequency"],
callback=on_upload_frequency_change)
# to subscribe to future changes of upload frequency
client.subscribe_to_attribute(key="uploadFrequency",
callback=on_upload_frequency_change)
def main():
while True:
client.send_telemetry({
"cpu": psutil.cpu_percent(),
"memory": psutil.virtual_memory().percent
})
print("Sleeping for " + str(uploadFrequency))
time.sleep(uploadFrequency)