Vimar Energy-Harvesting BLE 4-Button Transmitter, For Eikon/Arké/Idea/Plana

Overview

The Vimar VM03925 is a 4-button Bluetooth Low Energy (BLE) radio transmitter module that creates a battery-free control point for onboard systems that accept BLE switch telegrams. Each press generates its own power through an integrated kinetic energy harvester, then sends a 2.4 GHz BLE transmission across 2402 to 2480 MHz.

It fits a 2-module position and is completed with compatible Vimar button sets for Eikon, Arké, Idea, or Plana series. Typical range is up to 75 m in open field, with real-world distance reduced by bulkheads, metal surfaces, and mounting details, so placement on a boat matters.

With no supply voltage required at the switch location, it is a practical choice for refits where you want a clean control point without pulling new wiring through liners or headliners.

Key features

• Self-powered kinetic energy harvester with no batteries and no supply voltage required at the control point
• 4-button input arrangement (up to four buttons or two rockers) for multi-function switching and scene triggering
• Bluetooth Low Energy radio in the 2.4 GHz band (2402 to 2480 MHz), with max transmit power of 0.4 dBm (1.1 mW)
• NFC configuration interface (NFC Forum Type 2 Tag, ISO/IEC 14443 Part 2 and 3)
• Range guidance of up to 75 m line of sight, and around 10 m in indoor-type environments, with additional reduction near conductive structures
• 2-module format; completes with Vimar button sets for Eikon 20506/20506.2, Arké 19506/19506.2, Idea 16526/16526.2, or Plana 14506/14506.2
• AES-128 authentication (CBC mode) with sequence code for telegram protection
• Operating temperature from -25 C to +65 C (indoor use)

Installation and setup

This module sits behind the matching Vimar button set. When a button is pressed, you should feel and hear a mechanical click, which is the actuator movement that generates the energy for transmission.

Installation can be flush or surface mounted, depending on the support and frame used for the chosen Vimar series. Surface mounting typically uses the dedicated mounting frame for the series, while flush mounting uses the in-wall support arrangement. The receiver or actuator being controlled still needs its own power source and must be within RF range.

Compatibility and system integration

VM03925 communicates using BLE advertising telegrams, so it must be paired with a compatible BLE receiver, actuator, or gateway that understands the transmitted switch status. It is commonly used as a wall control for connected actuators and for triggering scenes in View Wireless systems, and it is also compatible at application level with BLE receivers that use Casambi protocol and technology.

NFC is used for configuration tasks such as commissioning and certain parameter changes, so it helps to choose an install location where you can still reach the face of the control with an NFC-capable device if adjustments are needed later.

Use on board

On a boat, this type of control makes the most sense in dry interior spaces where you want a switch point without adding cabling, such as cabin lighting scenes, saloon courtesy lighting, or a helm-side control for a compatible actuator or mode.

It is a good match for owners doing upgrades and refits, especially where access panels are limited and battery replacement would be annoying.

Environmental and placement notes

Mount it in a protected, indoor location away from washdowns, spray, and direct weather. 2.4 GHz signals can be attenuated by metal bulkheads and nearby conductive surfaces, so on vessels with a lot of metal structure it is worth doing a quick range check before you finalize the mounting position.

Maintenance and care

There are no batteries to service. Keep the button mechanism free of grit and salt residue so the click action stays consistent, and clean with a soft, lightly damp cloth when needed.

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