Rowi 2 ESP32-based Smart Plug AU, NZ, EU

Vaiotech KW 600 Rowi2

This project is the home of the ESPHome firmware for the Vaiotech KW600.

Note: If you intend to integrate your device with Home Assistant, please ensure you order the ESPHome firmware version of Rowi2. The default firmware does not support Home Assistant integration.

Rowi2 is available in two different versions:

• Default Rowi firmware: Local REST API & MQTT integration
• ESPHome firmware: For Home Assistant and custom automation

There are two external sensors available:

• Temperature and Humidity
• Temperature, Humidity, and Air Quality

Details and technical specs: Rowi2 Specifications. Where to buy in AU/NZ, Global version request here

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ESPHome Firmware Features

• Onboard device to Home Assistant using Improv-BLE
• Bluetooth proxy: Acts as a BLE proxy to relay Bluetooth Low Energy devices to Home Assistant
• Temperature and humidity offset
• Option to calibrate voltage, current, power, and energy
• Factory reset device by pressing button for over 10 seconds
• Automatic firmware updates: The ESPHome factory firmware supports auto-update for new releases

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LED Status & Light Modes

The RGB LED on the Rowi2 device indicates the current state:

State	Color / Effect	Description
Improv BLE (Onboarding)	Aqua, Fast Pulse	Device is in onboarding mode
Initialization (WiFi connected)	Solid White	Device is initializing, WiFi connected
Initialization (WiFi not connected)	Magenta, Slow Pulse	Device is initializing, WiFi not connected
No Home Assistant Connection	Red, Asymmetrical Pulse	Lost connection to Home Assistant
Relay ON	Solid Orange	Output relay is ON
Relay OFF	Solid Green	Output relay is OFF
Factory Reset Requested	Solid Blue, Fast Pulse	Hold button >10s, factory reset pending
Overcurrent Detected	Solid Red, Fast Pulse	Current exceeded configured limit, power cut

Notes:

• The LED updates automatically based on device state.
• Factory reset is triggered by holding the button for more than 10 seconds.

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Getting Started

• Onboarding Guide (Improv-BLE)
• Calibration Guide
• Developer Guide: Building & Installing ESPHome Firmware

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Troubleshooting

• If your device is not discovered during onboarding, ensure Bluetooth is enabled and the device is in onboarding mode (after power-up or factory reset).
• For manual firmware installation or advanced usage, see the Developer Guide.

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Links

• Rowi2 Specifications
• Buy Rowi2 in AU/NZ
• Request global version
• Calibration Guide
• Build it yourself: Developer Guide

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Standard Configuration

# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! #
# !!!  After adopting the device, update the WiFi configuration accordingly. !!! #
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! #
substitutions:
  name: rowi2-plug
  friendly_name: "Rowi2 Plug"
  climate_update_interval: 10s
  sensor_timeout_interval: 30s
  energy_update_interval: 1s
  overcurrent_cutoff: '3'

packages:
  remote_package:
    url: [https://github.com/vt-vaio/rowi2](https://github.com/vt-vaio/rowi2)
    ref: main
    files:
      - packages/core.yml
      - packages/climate.yml
      - packages/energy.yml
      - packages/ble-proxy.yml
      - packages/diagnostics.yml

esphome:
  name: ${name}
  friendly_name: ${friendly_name}
  name_add_mac_suffix: true
  min_version: '2025.10.0'
  on_boot:
    priority: 375
    then:
      - script.execute: control_leds
      - delay: 10min
      - if:
          condition:
            lambda: return id(init_in_progress);
          then:
            - lambda: id(init_in_progress) = false;
            - script.execute: control_leds

esp32:
  board: nodemcu-32s
  framework:
    type: esp-idf

logger:
  level: INFO

api:
  id: api_id
  on_client_connected:
    - lambda: id(init_in_progress) = false;
    - script.execute: control_leds
  on_client_disconnected:
    - script.execute: control_leds

ota:
  - platform: esphome
    id: ota_esphome

wifi:
  id: wifi_id
  on_connect:
    - lambda: id(init_in_progress) = false;
    - script.execute: control_leds
  on_disconnect:
    - script.execute: control_leds

globals:
  - id: init_in_progress
    type: bool
    restore_value: no
    initial_value: 'true'
  - id: improv_ble_in_progress
    type: bool
    restore_value: no
    initial_value: 'false'
  - id: factory_reset_requested
    type: bool
    restore_value: no
    initial_value: 'false'
  - id: overcurrent_cutoff_detected
    type: bool
    restore_value: no
    initial_value: 'false'