Plugin file
Plugin configuration file
{
"name": "milesight_iot_em500_udl",
"version": "1.0.0",
"description": "Ultrasonic distance/level sensor delivering precise measurements for harsh environments including snow level monitoring, flood control, wastewater management, and grain/fertilizer fill levels using ultrasonic wave technology.",
"author": "Thinger.io",
"license": "MIT",
"repository": {
"type": "git",
"url": "https://github.com/thinger-io/plugins.git",
"directory": "milesight-iot-em500-udl"
},
"metadata": {
"name": "Milesight-Iot EM500-UDL",
"description": "Ultrasonic distance/level sensor delivering precise measurements for harsh environments including snow level monitoring, flood control, wastewater management, and grain/fertilizer fill levels using ultrasonic wave technology.",
"image": "assets/em500-udl.png",
"category": "devices",
"vendor": "milesight-iot"
},
"resources": {
"products": [
{
"description": "Ultrasonic distance/level sensor delivering precise measurements for harsh environments including snow level monitoring, flood control, wastewater management, and grain/fertilizer fill levels using ultrasonic wave technology.",
"enabled": true,
"name": "Milesight-Iot EM500-UDL",
"product": "milesight_iot_em500_udl",
"profile": {
"api": {
"downlink": {
"enabled": true,
"handle_connectivity": false,
"request": {
"data": {
"path": "/downlink",
"payload": "{\n \"data\" : \"{{payload.data=\"\"}}\",\n \"port\" : {{payload.port=2}},\n \"priority\": {{payload.priority=3}},\n \"confirmed\" : {{payload.confirmed=false}},\n \"uplink\" : {{property.uplink}} \n}",
"payload_function": "",
"payload_type": "",
"plugin": "{{property.uplink.source}}",
"target": "plugin_endpoint"
}
}
},
"uplink": {
"enabled": true,
"handle_connectivity": true,
"request": {
"data": {
"payload": "{{payload}}",
"payload_function": "",
"payload_type": "source_payload",
"resource_stream": "uplink",
"target": "resource_stream"
}
}
}
},
"autoprovisions": {
"device_autoprovisioning": {
"config": {
"mode": "pattern",
"pattern": "em500_udl_.*"
},
"enabled": true
}
},
"buckets": {
"milesight_em500_udl_data": {
"backend": "mongodb",
"data": {
"payload": "{{payload}}",
"payload_function": "",
"payload_type": "source_payload",
"resource_stream": "uplink_decoded",
"source": "resource_stream"
},
"enabled": true,
"retention": {
"period": 3,
"unit": "months"
},
"tags": []
}
},
"code": {
"code": "function decodeThingerUplink(thingerData) {\n // 0. If data has already been decoded, we will return it\n if (thingerData.decodedPayload) return thingerData.decodedPayload;\n \n // 1. Extract and Validate Input\n // We need 'payload' (hex string) and 'fPort' (integer)\n const hexPayload = thingerData.payload || \"\";\n const port = thingerData.fPort || 1;\n\n // 2. Convert Hex String to Byte Array\n const bytes = [];\n for (let i = 0; i < hexPayload.length; i += 2) {\n bytes.push(parseInt(hexPayload.substr(i, 2), 16));\n }\n\n // 3. Dynamic Function Detection and Execution\n \n // CASE A: (The Things Stack v3)\n if (typeof decodeUplink === 'function') {\n try {\n const input = {\n bytes: bytes,\n fPort: port\n };\n var result = decodeUplink(input);\n \n if (result.data) return result.data;\n\n return result; \n } catch (e) {\n console.error(\"Error inside decodeUplink:\", e);\n throw e;\n }\n }\n\n // CASE B: Legacy TTN (v2)\n else if (typeof Decoder === 'function') {\n try {\n return Decoder(bytes, port);\n } catch (e) {\n console.error(\"Error inside Decoder:\", e);\n throw e;\n }\n }\n\n // CASE C: No decoder found\n else {\n throw new Error(\"No compatible TTN decoder function (decodeUplink or Decoder) found in scope.\");\n }\n}\n\n\n// TTN decoder\n/**\n * Ursalink EM500-UDL Payload Decoder\n *\n * definition [channel-id] [channel-type] [channel-data]\n *\n * 01: battery -> 0x01 0x75 [1 byte] Unit: %\n * 03: distance -> 0x03 0x82 [2 bytes] Unit: m\n * ------------------------------------------ EM500\n *\n * Example:\n * base64: AXVaA4IeAA==\n * bytes: 01 75 5A 03 82 1E 00\n *\n * After decode:\n * {\n * \"battery\": 90,\n * \"distance\": 30\n * }\n */\nfunction Decoder(bytes, port) {\n var decoded = {};\n\n for (var i = 0; i < bytes.length;) {\n var channel_id = bytes[i++];\n var channel_type = bytes[i++];\n // BATTERY\n if (channel_id === 0x01 && channel_type === 0x75) {\n decoded.battery = bytes[i];\n i += 1;\n }\n // DISTANCE\n else if (channel_id === 0x03 && channel_type === 0x82) {\n decoded.distance = readInt16LE(bytes.slice(i, i + 2)) / 1000;\n i += 2;\n } else {\n break;\n }\n }\n\n return decoded;\n}\n\n/*******************************************\n * bytes to number\n ********************************************/\nfunction readUInt16LE(bytes) {\n var value = (bytes[1] << 8) + bytes[0];\n return value & 0xffff;\n}\n\nfunction readInt16LE(bytes) {\n var ref = readUInt16LE(bytes);\n return ref > 0x7fff ? ref - 0x10000 : ref;\n}",
"environment": "javascript",
"storage": "",
"version": "1.0"
},
"flows": {
"em500_udl_decoder": {
"data": {
"payload": "{{payload}}",
"payload_function": "decodeThingerUplink",
"payload_type": "source_payload",
"resource": "uplink",
"source": "resource",
"update": "events"
},
"enabled": true,
"sink": {
"payload": "{{payload}}",
"payload_function": "",
"payload_type": "source_payload",
"resource_stream": "uplink_decoded",
"target": "resource_stream"
},
"split_data": false
}
},
"properties": {
"uplink": {
"data": {
"payload": "{{payload}}",
"payload_function": "",
"payload_type": "source_payload",
"resource": "uplink",
"source": "resource",
"update": "events"
},
"default": {
"source": "value"
},
"enabled": true
}
}
},
"_resources": {
"properties": [
{
"property": "dashboard",
"value": {
"tabs": [
{
"name": "Overview",
"widgets": [
{
"layout": {
"col": 0,
"row": 0,
"sizeX": 2,
"sizeY": 5
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Distance"
},
"properties": {
"decimalPlaces": 2,
"enableExtraTextColor": false,
"enableIconColor": false,
"enableIconSize": false,
"extraText": "",
"extraTextColor": "#1E313E",
"extraTextColorConditions": [],
"extraTextConditions": [],
"extraTextPosition": "above-value",
"extraTextSize": "20px",
"extraTextWeight": "font-light",
"icon": "",
"iconColor": "#1E313E",
"iconColorConditions": [],
"iconConditions": [],
"iconGap": "8px",
"iconPosition": "before-value",
"iconSize": "75px",
"iconVerticalOffset": "0px",
"link": "",
"textAlign": "center",
"textColor": "#1E313E",
"textColorConditions": [],
"textSize": "75px",
"textWeight": "font-light",
"unit": "m",
"unitSize": "20px"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "milesight_em500_udl_data",
"mapping": "distance",
"tags": {
"device": [],
"group": []
}
},
"color": "#1abc9c",
"name": "Distance",
"source": "bucket",
"timespan": {
"mode": "latest"
}
}
],
"type": "text"
},
{
"layout": {
"col": 0,
"row": 5,
"sizeX": 2,
"sizeY": 5
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Battery"
},
"properties": {
"color": "#2ebd59",
"gradient": false,
"max": 100,
"min": 0,
"unit": "%"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "milesight_em500_udl_data",
"mapping": "battery",
"tags": {
"device": [],
"group": []
}
},
"color": "#2ebd59",
"name": "Battery",
"source": "bucket",
"timespan": {
"mode": "latest"
}
}
],
"type": "gauge"
},
{
"layout": {
"col": 2,
"row": 0,
"sizeX": 4,
"sizeY": 10
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Distance (24h)"
},
"properties": {
"alignTimeSeries": false,
"dataAppend": false,
"options": "var options = {\n chart: {\n type: 'line',\n stacked: false\n },\n dataLabels: {\n enabled: false\n },\n stroke: {\n curve: 'smooth',\n width: 2\n },\n xaxis: {\n type: 'datetime',\n labels: {\n datetimeUTC: false\n },\n tooltip: {\n enabled: false\n }\n },\n yaxis: {\n \"labels\": {\n \"formatter\": function (val) {\n if ( val !== null && typeof val !== 'undefined' )\n return val.toFixed(2) + ' m';\n }\n },\n \"title\": {\n \"text\": \"Distance (m)\"\n }\n },\n tooltip: {\n x: {\n format: 'dd/MM/yyyy HH:mm:ss'\n },\n y: {\n formatter: function(val) {\n return val.toFixed(2) + ' m';\n }\n }\n }\n};\n",
"realTimeUpdate": true
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "milesight_em500_udl_data",
"mapping": "distance",
"tags": {
"device": [],
"group": []
}
},
"color": "#3498db",
"name": "Distance",
"source": "bucket",
"timespan": {
"magnitude": "hour",
"mode": "relative",
"period": "latest",
"value": 24
}
}
],
"type": "apex_charts"
},
{
"layout": {
"col": 2,
"row": 10,
"sizeX": 4,
"sizeY": 5
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Battery (24h)"
},
"properties": {
"alignTimeSeries": false,
"dataAppend": false,
"options": "var options = {\n chart: {\n type: 'area',\n stacked: true\n },\n dataLabels: {\n enabled: false\n },\n stroke: {\n curve: 'smooth'\n },\n xaxis: {\n type: 'datetime',\n labels: {\n datetimeUTC: false\n },\n tooltip: {\n enabled: false\n }\n },\n yaxis: {\n \"labels\": {\n \"formatter\": function (val) {\n if ( val !== null && typeof val !== 'undefined' )\n return val.toFixed(0) + '%';\n }\n }\n },\n tooltip: {\n x: {\n format: 'dd/MM/yyyy HH:mm:ss'\n }\n }\n};\n",
"realTimeUpdate": true
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "milesight_em500_udl_data",
"mapping": "battery",
"tags": {
"device": [],
"group": []
}
},
"color": "#2ebd59",
"name": "Battery",
"source": "bucket",
"timespan": {
"magnitude": "hour",
"mode": "relative",
"period": "latest",
"value": 24
}
}
],
"type": "apex_charts"
}
]
}
]
}
}
]
}
}
]
}
}