Sensor Features

Model catalog

Search for these models in ThinkLink by name or ID.

Model type	Name	id_name	Platform model ID
RPC	[DYP A02 GET] para	dyp_a02_get	85858625238601733
RPC	[DYP A02 SET] para	dyp_a02_set	85856730826674181
Template	DYP-A02-2.0		85852682421538821
Thing Model	[DYP-A02-2.0]	dyp_a02_21305	85851937521537029
Thing Model	[DYP-21305-DYP-A02资产] 区域聚合	dyp_a02_asset_21305	119677174411063298

The DYP-A02-V2.0 Series is a high-performance distance measurement module built with a sealed, split-type waterproof probe. It features dust- and water-resistance (IP-rated), making it suitable for humid or harsh operating environments. With a minimal blind zone of just 3 cm, it adapts flexibly to diverse detection conditions—offering simple operation, high performance, and industrial-grade reliability.

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Product Features

• 3 cm minimal blind zone
• Power supply: 3.3–5 V (RS-485 output version: 5–24 V)
• Five selectable output modes
• Sealed, split-type waterproof probe
• Operating temperature: −15 °C to +60 °C
• Storage temperature: −25 °C to +80 °C
• Ultra-low power design: Standby current < 5 µA
• ESD protection: Integrated ESD protection components on signal lines; compliant with IEC 61000-4-2

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Product Advantages

• Minimal blind zone
• Strong anti-interference capability
• Stable and reliable data output
• Low power consumption
• Fast response time
• High ESD immunity
• Wide operating temperature range
• High measurement accuracy

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Applications

• Horizontal distance measurement
• Parking management systems
• Robot obstacle avoidance & automatic control
• Object proximity and presence detection

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Integration Information

Hardware Specifications

• Product Documentation: DYP-RD-Product_Specification(DYP-A02-V2.0)-220912-A0.pdf
• Model Number: DYP-A02-V2.0 (RS-485 interface version)
• Communication Protocol: Modbus-RTU
• Default RS-485 Address: 0x01 (configurable via command)
• Baud Rate: Default 9600, 8N1 (configurable via command)
• Power Supply: 5–24 V DC
• Power Consumption:
  • Standby current: ≤ 5 µA
  • Average operating current: ≤ 15 mA
  • Peak operating current: < 75 mA
• Warm-up Time: 5 ms
• Wiring: 4-wire interface — VCC, GND, RS-485A (white), RS-485B (yellow)
• Test DTU: KC21 (A1 version), providing 15 V power and RS-485 connectivity to DYP-A02-V2.0

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Data Acquisition

Required registers to read:

• 0x0100: Distance value
• 0x0102: Temperature value

Access	Register Address	Function	Data Type	Description
R	0x0100	Processed Distance	Unsigned 16-bit integer (Uint16BE)	Distance after algorithmic processing; unit: mm; response time ≈ 520 ms
R	0x0101	Real-time Distance	Unsigned 16-bit integer (Uint16BE)	Raw real-time distance; unit: mm; response time ≈ 120 ms
R	0x0102	Temperature	Signed 16-bit integer (Int16BE)	Unit: 0.1 °C; resolution: 0.5 °C; response time ≈ 120 ms
R/W	0x0200	Slave Address	Unsigned 16-bit integer	Range: 0x01–0xFE; default: 0x01; 0xFF = broadcast address
R/W	0x0201	Baud Rate	Unsigned 16-bit integer	Takes effect immediately. Mapping: 0x0001 → 2400 bps 0x0002 → 4800 bps 0x0003 → 9600 bps 0x0004 → 14400 bps 0x0005 → 19200 bps 0x0006 → 38400 bps 0x0007 → 57600 bps 0x0008 → 76800 bps 0x0009 → 115200 bps

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EdgeBus (EB) Configuration

EB Code (via EB Helper)

Configuration Item	Value
bzType	21305
Battery	true
Upload Interval	App address 70
Acquisition Interval	App address 74
Distance COV Threshold	App address 110
Uplink Protocol	port=22, version=0x83, dataType=0x37
Application Layer Payload	Read 0x0100 (distance) and 0x0102 (temperature); total payload size = 10 bytes

✅ Compile and deploy the generated firmware to EdgeBus-compatible hardware (e.g., KC21 or KC11).

import { Buffer } from "buffer";
import { buildOtaFile } from "@EBSDK/run";
import {
    ActionAfertExpr, CalcData,
    CrcMode,
    CvtRule,
    EBBuffer,
    EBModel,
    ExprCondition,
    LoraUpEvent,
    QueryEvent, SetUpCovDataType,
    UserConfUPItem,EventInfoItem
} from "@EBSDK/EBCompiler/all_variable";
import { CheckbitEnum, getOtaConfig, HwTypeEnum, UpgrdTypeEnum } from "@EBSDK/otaConfig";
////////////////////////////////////////////////////////////////////////////////////////
const eventInfo:UserConfUPItem[]=[
    {
        name:"dyp-A02",port:21,version:"0x85",dataType:"0x02",upPeriodIndex:70,
        quInfo:[
            {
                protocol:"modbus",addr:"0x01",code:"0x03",periodIndex:74,isLast:false,
                listVal:[
                    { start: "0x0100", end: "0x0100",covType:"Uint16BE",covAppIndex:110},
                    { start: "0x0102", end: "0x0102"}
                ]
            }
        ]
    }
]
let otaConfig = getOtaConfig({
    UpgrdType: UpgrdTypeEnum.GW,
    SwVersion:31,
    HwType: HwTypeEnum.OM822, // 假设使用400MHz频段，请根据实际情况修改
    BaudRate: 9600,
    StopBits: 1,
    DataBits: 8,
    Checkbit: CheckbitEnum.NONE,
    Battery: false, // 非电池供电，Class C模式
    ConfirmDuty: 60,
    BzType: 21305,
    BzVersion: 11
})
const MODBUS_TT = (ebModel: EBModel) => {
    for (let i=0; i<eventInfo.length; i++){
        let event=new EventInfoItem(eventInfo[i]);
        event.upEventSetup()
        event.eventInstall()
    }
    return JSON.stringify(ebModel, null, 2)
}
buildOtaFile(import.meta.url, otaConfig, MODBUS_TT)

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Thing Model (Uplink Frame Structure)

• Port Number: 22
• Frame Format: Standard EBHelper frame structure

Field Name	Offset (Byte)	Length (Bytes)	Description
version	0	1	Protocol version; fixed value 0x85
dataType	1	1	Fixed value 0x02
covStatus	2	1	Reserved (for internal COV handling)
status	3	1	Query event status
battery	4	1	Battery level (e.g., voltage in V × 100)
addr	5	1	Sub-device address (Modbus slave ID)
distance	6	2	Big-endian unsigned 16-bit (Uint16BE); unit: mm
temperature	8	2	Big-endian signed 16-bit (Int16BE); unit: 0.1 °C

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Third-Party Platform Data Subscription (MQTT)

MQTT Topic

/v32/{Organization Account}/tkl/up/telemetry/{eui}

Sample Uplink Payload

{
  "eui": "6353012af10a9331",
  "active_time": "2026-02-05T08:35:48.000Z",
  "thingModelId": "71719731542888453",
  "thingModelIdName": "zenner_21121",
  "telemetry_data": {
    "snr": 13.5,
    "rssi": -51,
    "battery": 3.37,
    "distance": 1,
    "temperature": 23.3
  }
}

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Protocol Documentation

• ThinkLink Protocol Specification Document

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RPC Interface

Set Parameters

RPC Name: dyp_a02_set

Parameter Name	App Address	Unit	Description
period_up	70	s	Uplink reporting interval
period_read	74	s	Data acquisition interval
cov_distance	110	mm	Distance Change-of-Value (COV) threshold

let classMode = (device && device.shared_attrs && device.shared_attrs.class_mode) || "ClassA";
let sleepMs = classMode === "ClassA" ? 500 : 5000;

let paraDef = {
  app_70: {
    name: "period_up",
    field_name: "period_up",
    unit: "S",
    type: "uint32le",
    coefficient: 1,
    decimal: 0,
    optionList: {}
  },
  app_74: {
    name: "period_read",
    field_name: "period_read",
    unit: "S",
    type: "uint32le",
    coefficient: 1,
    decimal: 0,
    optionList: {}
  },
  app_110: {
    name: "cov_distance",
    field_name: "cov_value",
    unit: "mm",
    type: "int16BE",
    coefficient: 1,
    decimal: 0,
    optionList: {}
  }
};

let frames = RPCHelper.buildFrame({ paraDef, params });
let redoBuffer = RPCHelper.redo();
let dnBuffer = Buffer.alloc(frames.writeBuffer.length + frames.readBuffer.length + redoBuffer.length);
frames.writeBuffer.copy(dnBuffer, 0);
frames.readBuffer.copy(dnBuffer, frames.writeBuffer.length);
redoBuffer.copy(dnBuffer, frames.writeBuffer.length + frames.readBuffer.length);

logger.info("set dyp-a02 para");
console.log(dnBuffer.toString("hex"));

let msg = RPCHelper.makeMSG({
  msgType: Utils.msgType.paras,
  device: device,
  dnBuffer: dnBuffer,
  sleepTime: sleepMs
});

return [msg];

Get Parameters

Retrieved parameters are available in the device’s shared attributes.

let classMode = (device && device.shared_attrs && device.shared_attrs.class_mode) || "ClassA";
let sleepMs = classMode === "ClassA" ? 500 : 5000;

let paraDef = {
  app_70: {
    name: "period_up",
    field_name: "period_up",
    unit: "S",
    type: "uint32le",
    coefficient: 1,
    decimal: 0,
    optionList: {}
  },
  app_74: {
    name: "period_read",
    field_name: "period_read",
    unit: "S",
    type: "uint32le",
    coefficient: 1,
    decimal: 0,
    optionList: {}
  },
  app_110: {
    name: "cov_distance",
    field_name: "cov_value",
    unit: "mm",
    type: "int16BE",
    coefficient: 1,
    decimal: 0,
    optionList: {}
  }
};

let frames = RPCHelper.buildFrame({ paraDef, params });

let msg = RPCHelper.makeMSG({
  msgType: Utils.msgType.paras,
  device: device,
  dnBuffer: frames.readBuffer,
  sleepTime: sleepMs
});

return [msg];

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Template Selection

On the ThinkLink Platform, search for the template named:
DYP-A02