The TATU protocol is used for communication between sensors and applications

- The protocol is divided into two parts: Requests and Responses

- Those who need to use the TATU library should preferably import it like this: from TATU import TatuReq, TatuRes

- Consider that a device (e.g., sc01) may have several sensors (e.g., humiditySensor, temperatureSensor...)

- The TATU protocol is not case-sensitive, however, creating messages in lowercase should be prioritized.

Request TATU messages:

First example requesting information from only one temperatureSensor sensor embedded in device sc01:

#Object creation

tatuMessage = TatuReq("FLOW",collect="10000",publish="10000",sensor="temperatureSensor",device="sc01")

#The value in tatuMessage.getTatu() should be:

'{"method":"flow", "sensor":"temperatureSensor", "time":{"collect":"10000", "publish":"10000"}}'

#O valor em tatuMessage.getTopic() deverá ser:

'dev/sc01/REQ'

Second example requesting data from only one temperatureSensor embedded in device sc01:

tatuMessage = TatuReq("FLOW",collect="10000",publish="20000",sensor="temperatureSensor",device="sc01")

#The response:

'{"method":"flow", "device":"temperatureSensor", "time":{"collect":"10000", "publish":"20000"}}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/REQ'

Third example requesting data from all sensors of the sc01 device:

tatuMessage = TatuReq("FLOW",collect="10000",publish="10000",sensor=None,device="sc01")

#The response tatuMessage.getTatu():

'{"method":"flow", "device":"sc01", "time":{"collect":"10000", "publish":"10000"}}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/REQ'

Fourth Example requesting that all sensors on device sc01 stop sending new messages (this message does not require a response):

tatuMessage = TatuReq("STOP",collect="10000",publish="10000",sensor=None,device="sc01")

#The response tatuMessage.getTatu()

'{"method":"stop", "device":"sc01"}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/REQ'

Fifth Example requesting that the temperatureSensor of device sc01 stop sending new messages (this message does not require a response):

tatuMessage = TatuReq("STOP",collect="10000",publish="10000",sensor="temperatureSensor",device="sc01")

#The response tatuMessage.getTatu()

'{"method":"stop", "sensor":"temperatureSensor"}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/REQ'

Seventh example requesting an immediate message from the temperatureSensor sensor of device sc01:

tatuMessage = TatuReq("GET",sensor="temperatureSensor",device="sc01")

#The response tatuMessage.getTatu()

'{"method":"get", "sensor":"temperatureSensor"}'

#O valor em tatuMessage.getTopic() deverá ser:

'dev/sc01/REQ'

Eighth example requesting an immediate message from all sensors on device sc01:

tatuMessage = TatuReq("GET",sensor="None",device="sc01")

#The response tatuMessage.getTatu()

'{"method":"get", "device":"sc01"}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/REQ'

Ninth example requesting a TATU message from the temperatureSensor only when a delta variation occurs:

tatuMessage = TatuReq("EVT",sensor="temperatureSensor",device="sc01",delta="2")

#The response tatuMessage.getTatu()

'{"method":"evt", "sensor":"temperatureSensor","delta","2"}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/REQ'

Response TATU messages

First example responding to a message that requested data from only one temperatureSensor sensor embedded in device sc01:

#collect and publish optional params tatuMessage = TatuRes("FLOW",collect="10000",publish="10000",sensor="temperatureSensor",device="sc01",sample="37")

#O valor em tatuMessage.getTatu() deverá ser:

'{"header": {"method": "FLOW", "device": "sc01"}, "payload": {"sensors": [{"temperatureSensor": ["37"]}]}}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/RES'

Second example responding to a message that requested information from only one temperatureSensor sensor embedded in device sc01:

tatuMessage = TatuRes("FLOW",collect=10000,publish=20000,sensor="temperatureSensor",device="sc01",sample=["37","38"])

#O valor em tatuMessage.getTatu() deverá ser:

'{"header": {"method": "FLOW", "device": "sc01"}, "payload": {"sensors": [{"temperatureSensor": ["37", "38"]}]}}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/RES'

Third example responding to a request with data from all sensors of the sc01 device:

tatuMessage = TatuRes("FLOW",collect="10000",publish="10000",sensor=None,device="sc01",sensorsList=["humiditySensor","temperatureSensor","soilmoistureSensor","solarradiationSensor","ledActuator"], sensorsValue=[["66"],["31"],["650"],["2291"],["true"]])

#The response tatuMessage.getTatu():

'{"header": {"method": "FLOW", "device": "sc01"}, "payload": {"sensors": [{"humiditySensor": ["66"]}, {"temperatureSensor": ["31"]}, {"soilmoistureSensor": ["650"]}, {"solarradiationSensor": ["2291"]}, {"ledActuator": ["true"]}]}}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/RES'

Fourth example response to a request for immediate data from the temperatureSensor sensor of device sc01:

tatuMessage = TatuRes("GET",sensor="temperatureSensor",device="sc01",sample="27")

#The response tatuMessage.getTatu()

'{"header":{"method":"GET", "device":"sc01"}, "payload":{"sensors":{"temperatureSensor":["27"]}}}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/RES'

Fifth example, responding with values ​​from all sensors of device sc01:

tatuMessage = TatuRes("GET",sensor="None",device="sc01",sensorsList=["humiditySensor","temperatureSensor","soilmoistureSensor","solarradiationSensor","ledActuator"], sensorsValue=[["66"],["31"],["650"],["2291"],["true"]])

#The response tatuMessage.getTatu()

'{"header": {"method": "get", "device": "sc01"}, "payload": {"sensors": [{"humiditySensor": ["66"]}, {"temperatureSensor": ["31"]}, {"soilmoistureSensor": ["650"]}, {"solarradiationSensor": ["2291"]}, {"ledActuator": ["true"]}]}}'

#The value in tatuMessage.getTopic() should be:

'dev/sc01/RES'