- we've added a build configuration for nRF52840 dongle
- we've added USB serial overlay for this dongle
- we've added TCP overlay for dongle
- we've added multiprotocol (BLE) overlay for dongle future testing
- this now uses a fork of the MQTT-SN enabled OpenThread for publication
NOTE: You need to replace ~/ncs/v2.4.0/modules/lib/openthread with the branch from here https://github.com/DynamicDevices/openthread-upstream/tree/nrf-connect-with-mqtt-sn
The nRF528540 Dongle is equipped with a yellow LED and a multicolor RGB LED.
- RGB LED is used to determine different states of nodes in Thread Network.
| RGB LED Colour | Role of Node |
|---|---|
| Red | Leader |
| Blue | Router |
| Green | Child |
| White | Detached or Disabled |
- Yellow LED toggles when CLI firmware is publishing the data.
-
Build a version of the CLI with the serial console waiting disabled
CONFIG_WAIT_FOR_CLI_CONNECTION=n -
Flash a Tasmota plug and configure it to connect to
mqtt.dynamicdevices.co.uk. You'll need to disable the MQTT user/password in the console withmqttuser 0andmqttpasswd 0 -
The plug will then connect to the broker and you can see the pub/sub topic prefix in the console which will be based on the MAC address e.g.
cmnd/tasmota_460742/POWER -
Create a Node-Red flow to subscribe to the topic on which the CLI firmware is publishing, also based on the CLI EUI64 e.g.
ot/f4ce361832e86d55 -
Then set an injection node to periodically publish to the plug to turn it off, delay, then turn it on again
-
Connect the CLI dongle device to a USB power plug attached to the Tasmota plug
-
You can then log the output as the CLI publishes periodically and is turned off and on again
- You can subscribe to the log output on e.g.
soaktest/log/1and store the output for analysis
The flow we are using is as follows
[
{
"id": "2809316698732fb3",
"type": "tab",
"label": "OpenThread Soak Testing",
"disabled": false,
"info": "",
"env": []
},
{
"id": "ade2d79005d0abd1",
"type": "mqtt in",
"z": "2809316698732fb3",
"name": "",
"topic": "ot/f4ce361832e86d55",
"qos": "2",
"datatype": "auto",
"broker": "d8af39e4.ee4308",
"nl": false,
"rap": true,
"rh": 0,
"inputs": 0,
"x": 330,
"y": 280,
"wires": [
[
"4f2de9be4ccafc82"
]
]
},
{
"id": "8632e50a9a419a39",
"type": "debug",
"z": "2809316698732fb3",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 1170,
"y": 160,
"wires": []
},
{
"id": "4f2de9be4ccafc82",
"type": "json",
"z": "2809316698732fb3",
"name": "",
"property": "payload",
"action": "",
"pretty": false,
"x": 590,
"y": 280,
"wires": [
[
"8632e50a9a419a39",
"19fbbf5b68c047c1"
]
]
},
{
"id": "97664cc8eb92968b",
"type": "inject",
"z": "2809316698732fb3",
"name": "Reset Plug",
"props": [
{
"p": "topic",
"vt": "str"
},
{
"p": "payload"
}
],
"repeat": "300",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "cmnd/tasmota_460742/POWER",
"payload": "OFF",
"payloadType": "str",
"x": 320,
"y": 420,
"wires": [
[
"0f39ed25e413e5c1",
"6be8d9d5b22aadc7",
"9e6eaba9eb82538f"
]
]
},
{
"id": "0f39ed25e413e5c1",
"type": "mqtt out",
"z": "2809316698732fb3",
"name": "",
"topic": "",
"qos": "",
"retain": "",
"respTopic": "",
"contentType": "",
"userProps": "",
"correl": "",
"expiry": "",
"broker": "d8af39e4.ee4308",
"x": 1150,
"y": 420,
"wires": []
},
{
"id": "c304d6a75d83593e",
"type": "delay",
"z": "2809316698732fb3",
"name": "",
"pauseType": "delay",
"timeout": "20",
"timeoutUnits": "seconds",
"rate": "1",
"nbRateUnits": "1",
"rateUnits": "second",
"randomFirst": "1",
"randomLast": "5",
"randomUnits": "seconds",
"drop": false,
"allowrate": false,
"outputs": 1,
"x": 700,
"y": 500,
"wires": [
[
"0f39ed25e413e5c1",
"9e6eaba9eb82538f"
]
]
},
{
"id": "6be8d9d5b22aadc7",
"type": "change",
"z": "2809316698732fb3",
"name": "",
"rules": [
{
"t": "set",
"p": "payload",
"pt": "msg",
"to": "ON",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 510,
"y": 500,
"wires": [
[
"c304d6a75d83593e"
]
]
},
{
"id": "d0c67ab7236cb4fc",
"type": "mqtt in",
"z": "2809316698732fb3",
"name": "",
"topic": "cmnd/tasmota_460742/POWER",
"qos": "2",
"datatype": "auto",
"broker": "d8af39e4.ee4308",
"nl": false,
"rap": true,
"rh": 0,
"inputs": 0,
"x": 350,
"y": 160,
"wires": [
[
"8632e50a9a419a39"
]
]
},
{
"id": "19fbbf5b68c047c1",
"type": "mqtt out",
"z": "2809316698732fb3",
"name": "Soak Test Logging",
"topic": "soaktest/log/1",
"qos": "",
"retain": "",
"respTopic": "",
"contentType": "",
"userProps": "",
"correl": "",
"expiry": "",
"broker": "d8af39e4.ee4308",
"x": 1190,
"y": 340,
"wires": []
},
{
"id": "9e6eaba9eb82538f",
"type": "function",
"z": "2809316698732fb3",
"name": "Make power state output JSON",
"func": "\nmsg.payload = \"{ \\\"Power\\\": \\\"\" + msg.payload + \"\\\"}\";\n\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 1000,
"y": 260,
"wires": [
[
"19fbbf5b68c047c1"
]
]
},
{
"id": "d8af39e4.ee4308",
"type": "mqtt-broker",
"name": "localhost",
"broker": "127.0.0.1",
"port": "1883",
"clientid": "",
"autoConnect": true,
"usetls": false,
"protocolVersion": "4",
"keepalive": "60",
"cleansession": true,
"birthTopic": "",
"birthQos": "0",
"birthPayload": "",
"birthMsg": {},
"closeTopic": "",
"closeQos": "0",
"closePayload": "",
"closeMsg": {},
"willTopic": "",
"willQos": "0",
"willPayload": "",
"willMsg": {},
"sessionExpiry": ""
}
]