DPAJsonConvertor

This page describes format of json data for DPAJsonConvertor.

Requests

Topic

Earlier: [mid]/dpa/requests Now: gateway/[mac]/tx

Structure

{ "nadr": 0, "per": 5, "cmd": 1, "hwpid": 65535, "data": [0,1,2] }

Element	Description
nadr	node address
per	peripheral id
cmd	command id
hwpid	hardware profiles id
data	user data (array)

The message in example is request for writing 2 bytes (0x01, 0x02) into RAM to address 0x00.

Confirmations

Topic

Earlier: [mid]/dpa/confirmations Now: gateway/[mac]/rx

Structure

{ "timestamp": "2016-07-26 20:59:34.741", "nadr": 1, "per": 5, "cmd": 1, "hwpid": 65535, "dpaValue": 0, "hops": 0, "timeslotLength": 3, "hopsResponse": 0 }

Element	Description
timestamp	timestamp of converting from iqrf to json
nadr	node address
per	peripheral id
cmd	command id
hwpid	hardware profiles id
dpaValue	DPA value, see DPA tech guide.
hops	Count of hops used to deliver the DPA request to the addressed node.
timeslotLength	Timeslot length used to deliver the DPA request to the addressed node.
hopsResponse	Count of hops used to deliver the DPA response from the addressed node back to the coordinator. In the case of broadcast, this parameter is 0 as there is no response sent back to the coordinator.

Responses

Topic

Earlier: [mid]/dpa/responses Now: gateway/[mac]/rx

Structure

{ "timestamp": "2016-07-26 20:53:54.734", "nadr": 0, "per": 5, "cmd": 129, "hwpid": 0, "data": [7,0] }

Element	Description
timestamp	timestamp of converting from iqrf to json
nadr	node address
per	peripheral id
cmd	command id
hwpid	hardware profiles id
data	user data (array)

Next examples

There are next examples of requests:

Request	Description
{ "nadr": 0, "per": 6, "cmd": 1, "hwpid": 65535, "data": []}	Turn red LED on
{ "nadr": 0, "per": 6, "cmd": 0, "hwpid": 65535, "data": []}	Turn red LED off
{ "nadr": 0, "per": 7, "cmd": 1, "hwpid": 65535, "data": []}	Turn green LED on
{ "nadr": 0, "per": 7, "cmd": 0, "hwpid": 65535, "data": []}	Turn green LED off