TRW

Description of the device

The model TRW is a radio-based resistance thermometer for monitoring medium temperatures of all types. Resistance thermometers in this series can be installed directly into the process or combined with a large number of thermowell designs. It uses the licence-free LoRaWAN® and Bluetooth® radio standards and is used, for example, on mobile equipment and remote measuring points. Thanks to intelligent measurement and transmission control and a replaceable battery, the sensor can be operated for years without maintenance.

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For more information see product site.

NETRIS1 Parser Quick Start

Parser API

All functions are pure (no global mutation) except setMeasurementRanges which updates internal range configuration for subsequent decodes.

Types:

Input types:

interface UplinkInput {
  fPort: number // LoRaWAN FPort
  bytes: number[] // Raw payload as array of unsigned bytes (0-255)
  recvTime?: string // Optional ISO timestamp (if your LNS provides it)
}

interface HexUplinkInput {
  fPort: number // LoRaWAN FPort
  bytes: string // Raw payload as hex-encoded string (case-insensitive, even length)
  recvTime?: string // Optional ISO timestamp (if your LNS provides it)
}

Return type (shared by all decode helpers):

type Result = {
  data: Record<string, any> // Parsed key/value pairs
  warnings?: string[] // Non-fatal anomalies
} | {
  errors: string[] // Fatal or structural issues only
}

To understand the data field, take a look at the examples and the schema definition.

Supported channels to identify different sensors by:

// Is used in the returned data
type ChannelName = 'temperature'

Channels that support adjusting the measurement range:

type AdjustableChannelName = 'temperature'

decodeUplink(input)

function decodeUplink(input: UplinkInput): Result

decodeHexString(hexInput)

function decodeHexString(hexInput: HexUplinkInput): DecodeResult

bytes must have even length; case-insensitive.

setMeasurementRanges(channel, range)

// Will throw on invalid channel name
function setMeasurementRanges(
  channelName: AdjustableChannelName,
  range: {
    start: number
    end: number
  }
): void

Applies to future decodes only.

adjustRoundingDecimals(decimals)

// Smartly adjust number of decimals for rounded values
// Impacts all numeric values in all outputs
// Default is 4
function adjustRoundingDecimals(decimals: number): void

Applies to future decodes only.

Quick Start

Some network servers may not conform to the LoRaWAN codec specification. In this case, you need to create a small wrapper function.

Your device ranges might not be the default. Insert your desired ranges before decoding like this:

// Parser code...

// Quick start guide...

setMeasurementRanges('pressure', { start: 0, end: 100 })

NPM Module Inclusion

Device	Included	Factory function
TRW	❌	❌