Data Output

Measurement data produced by Haltian ENTRYWAY — MQTT streams and GraphQL queries

Overview

Haltian ENTRYWAY produces measurement data that you can access through the Haltian IoT Platform — receive JSON measurements via MQTT Stream API or query via GraphQL Service API.

This page documents the measurement types, payload formats, and how to access the data.

Self-hosted Wirepas gateway?

If you operate your own gateways and decode raw mesh messages, see the CBOR Uplink Reference for the binary message specification.

Haltian IoT Measurements

The ENTRYWAY sensor produces the following measurement types:

Measurement Type	Description
`entries`	People who entered since last report
`exits`	People who exited since last report
`batteryPercentage`	Remaining battery level

Entries & Exits

The primary measurement data. Reports directional people counts accumulated since the last report interval.

MQTT Topic:

haltian-iot/events/{integration-id}/{api-key-id}/measurements/peopleCounting/{device-uuid}

JSON Payload:

{
  "measured_at": "2026-01-28T08:52:11Z",
  "entries": 3,
  "exits": 1
}

Fields:

Field	Type	Description
`measured_at`	ISO 8601 string	Timestamp of measurement
`entries`	Integer (0+)	People who entered since last report
`exits`	Integer (0+)	People who exited since last report

Field name mapping

The Haltian IoT API uses entries/exits. These map to the raw CBOR fields in/out in the Wirepas CBOR message.

Reporting behavior:

Reports immediately on first movement detection
Reports every measurement interval (default 30s) during continued activity
Reports every idle reporting interval (default 1 hour) when no movement — values will be 0

GraphQL query example:

query {
  measurementLastPeopleCounting(
    where: {deviceId: {_eq: "6e5f8ac6-a099-44e5-bb28-25fd3d1f47a6"}}
  ) {
    deviceId
    measuredAt
    entries
    exits
  }
}

Replace these example values

6e5f8ac6-a099-44e5-bb28-25fd3d1f47a6 — your device UUID

batteryPercentage

Reports remaining battery level. Updated every 6 hours.

MQTT Topic:

haltian-iot/events/{integration-id}/{api-key-id}/measurements/batteryPercentage/{device-uuid}

JSON Payload:

{
  "measured_at": "2026-01-28T12:00:00Z",
  "batteryPercentage": 92
}

Fields:

Field	Type	Description
`measured_at`	ISO 8601 string	Timestamp of measurement
`batteryPercentage`	Integer (0–100)	Remaining battery percentage

Reporting behavior:

Reported every 6 hours
Battery life is up to 4 years with 2x AA batteries

GraphQL query example:

query {
  measurementLastBatteryPercentage(
    where: {deviceId: {_eq: "6e5f8ac6-a099-44e5-bb28-25fd3d1f47a6"}}
  ) {
    deviceId
    measuredAt
    batteryPercentage
  }
}

Replace these example values

6e5f8ac6-a099-44e5-bb28-25fd3d1f47a6 — your device UUID

Accessing Data

MQTT Stream API

Subscribe to real-time measurement events. See Stream API documentation for connection setup.

Service API (GraphQL)

Query historical and latest measurements. See Service API documentation for endpoint and authentication details.