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eMotion Air Product Guide

This eMotion Air guide consolidates the product help articles and copied LinknLink knowledge-base content into one local Shopify article.

Integrations

eMotion Air Setup, Pairing, and Home Assistant

This section is organized from the eMotion Air operating steps and LED indication reference. It covers the device overview, LED meanings, pairing in the LinknLink App, pairing in Home Assistant, and automation usage.

1. Overview

Package contents:

  • eMotion Air
  • Mounting bracket
  • Mounting sticker
  • Button sticker
Note: Batteries are not included in the package. Please use three AAA batteries.

Hardware:

  • LED indicator
  • Light sensor
  • Presence sensor
  • Smart button: click the lower half of the button area
  • Mounting holes
  • Battery cover
  • Temperature and humidity sensor
  • Mounting bracket

2. LED Indications

Light Status Meaning How to enter / trigger
Red LED Flashes repeatedly, on 100 ms / off 100 ms Zigbee pairing mode Press and hold the button for 15 seconds.
Red LED Always on Bluetooth pairing mode Press and hold the button for 10 seconds.
Red LED Flashes repeatedly, on 1 second / off 1 second Production test mode Factory test mode.
Red LED Flashes once Reports data Triggered when a person enters the detection range or when data is reported.
Red LED Every 1 hour, flashes 5 times at on 100 ms / off 100 ms Battery level is below 20% Replace the batteries.
Red LED Off Pairing completed or sleep mode The device returns to normal low-power operation.

Pairing mode lasts for 1 minute. Discover and add the device during this time, otherwise you need to activate pairing mode again.

3. Pair in the LinknLink App

  1. Get the app: Scan the QR code from the product guide, or search for "LinknLink" in the App Store or Google Play.
  2. Sign up or sign in: Open the LinknLink App and tap Sign up to create an account. If you already have an account, select the server from the top right corner and choose LinknLink Account.
  3. Discover the device: Make sure eMotion Air is in Bluetooth pairing mode. The LED should stay on. Tap Add Device; the app will search nearby Bluetooth devices and show the device icon and name.
  4. Add the device: Tap the device icon, select a room, rename the device if needed, and finish adding it to the app.
  5. Bind with a hub: If you have a Bluetooth hub, such as eMotion Ultra, open the hub settings and bind eMotion Air to the hub for remote access.

4. Pair in Home Assistant

Pair with Bluetooth:

  1. Make sure your Home Assistant server has a Bluetooth radio.
  2. Put eMotion Air into Bluetooth pairing mode. The red LED should stay on.
  3. In Home Assistant, go to Settings > Devices & services.
  4. The device will appear under the Integrations tab. Click Add to add it into Home Assistant.

Pair with Zigbee:

  1. Make sure you have a Zigbee 3.0 stick set up in Home Assistant with the Zigbee Home Automation (ZHA) integration.
  2. Put eMotion Air into Zigbee pairing mode. The red LED flashes repeatedly at 100 ms on / 100 ms off.
  3. Open the ZHA integration and click Add device.
  4. Home Assistant will discover and configure eMotion Air for use.

5. Use eMotion Air in Automations

eMotion Air exposes presence, illuminance, temperature, humidity, and button event data for automations.

  • Create automations directly in Home Assistant. A Bluetooth radio or Zigbee stick is required on the Home Assistant server.
  • Create automations in Google Home. A hub is required.
  • Create routines in Alexa. A hub is required.

MQTT Connection Troubleshooting

Step 1: Credential format

  • Username/password must be alphanumeric only (A–Z, a–z, 0–9), with no spaces or special characters.
  • If special characters were used before, update both the broker and the device to a new alphanumeric pair.

Step 2: Confirm the MQTT broker

  1. In HA: Settings → Devices & Services → Add Integration → search “MQTT” → Configure.
  2. Success indicates the Broker IP, port, and credentials are correct.
  3. On failure:HA OS: install and enable Mosquitto broker from the Add-on Store;Other setups: ensure Mosquitto is running and listening on 1883 (when TLS is off).

Step 3: Verify network connectivity (device ↔ HA)

  1. Add the Ping (ICMP) integration in HA and enter the LinknLink device IP;
  2. connected means same LAN/reachable;
  3. If it fails: check different subnets/VLANs, AP isolation/guest network, or router/firewall rules blocking internal traffic.

Step 4: Enter MQTT settings on the LinknLink device by using LinknLink App

  • Broker IP, port (1883 by default), username/password;
  • Save and Check HA MQTT integration device list

Step 5: Confirm HA receives messages

  1. Open Developer Tools → MQTT (or the MQTT integration’s Listen to a topic);
  2. In Topic, enter home/# → Start listening;
  3. If you see topics/payloads from the device, the connection and messaging are good.

Step 6: Deep-dive with MQTT Explorer (optional)

  1. Download MQTT Explorer from https://mqtt-explorer.com/;
  2. In Connections, add a profile with name, Host (broker IP), Port (usually 1883), and credentials;
  3. Save → Connect to browse the full topic tree for easier troubleshooting.

Once these checks pass, the LinknLink device should connect to MQTT without issues.