Self-powered Wireless Switch (BLE Beacon)

The self-powered wireless switch series by DFRobot advances the traditional wireless control paradigm by completely removing the need for batteries. This next-generation self-powered wireless switch - BLE Beacon, unlike its predecessor, the self-powered wireless switch - 433MHz, features a micro power generator and an energy storage RF circuit that captures kinetic energy from each press, converting it into electrical power. This energy is then stored and utilized to transmit wireless signals, making the switch maintenance-free and ideal for long-term applications like wireless doorbells, call buttons, ordering devices, and wall switches.

 

Self-Sustaining Power Generation

This new model eliminates the need for batteries, addressing common issues such as battery replacement, corrosion in humid environments, and environmental pollution from battery waste. The self-sustaining power mechanism ensures uninterrupted operation and significantly reduces maintenance efforts.

 

Enhanced Wireless Signal Capabilities

The switch offers robust wireless transmission without the need for wiring, ensuring flexible and hassle-free installation. The latest BLE beacon version supports BLE 5.3, enabling seamless integration with smartphones and other Bluetooth-enabled devices for versatile control applications. Compared to the previous 433MHz RF version, the BLE beacon provides faster transmission rates (1Mbps vs. 10kbps) and enhanced anti-interference capabilities with GFSK modulation.

 

Unique Address Code for Secure Transmission

Each switch is equipped with a unique 6-byte address code, guaranteeing secure and reliable signal transmission without interference. This feature ensures consistent performance even in complex wireless environments.

 

Improved Durability and Press Performance

Designed for durability, the switch can withstand up to 100,000 presses. The BLE beacon version features a lower press force requirement (1300g vs. 1800g) and a shorter press distance (1.3mm vs. 2.6mm), offering better tactile feedback and user experience. The power efficiency is also enhanced, requiring only 250uJ per press compared to the previous 600uJ.

 

Enhanced Application Suitability

The BLE beacon version is particularly suited for users familiar with ESP32 and other Bluetooth-enabled MCUs or those integrating with smartphones. It eliminates the need for a dedicated receiver, offering greater flexibility. While the 433MHz version remains ideal for scenarios requiring penetration through multiple walls due to its strong penetration capabilities, the BLE version provides superior anti-interference performance and faster transmission, making it a more advanced choice for modern applications.

The upgraded self-powered wireless switch series offers significant improvements in power efficiency, signal transmission, and user experience, making it an essential component for long-term, maintenance-free wireless control solutions in various applications.

Board Overview and Port Function

 

Tutorial: How to use mobile app or ESP32 scan the Switch BLE information

Features

No battery needed, maintenance-freeWireless signal, wiring-free6-byte unique address codeAdvertising BLE signals100,000 press lifespan

Applications

Wireless doorbellsCall buttonsOrder buttonsWall switches

Specification

Frequency: 2.4GHzAdvertising channels: 37 + 38 + 39 (2402MHz, 2426MHz, 2480MHz)Advertising data format: Supplier-customized BeaconGenerated energy: 250µJActuation force: typical value 1300gModule weight: 14g ± 2.5g (excluding antenna)Module dimensions: 44 x 22 x 11mmPress frequency: up to 2 presses per second (pressing too quickly may trigger a protection state, requiring approximately 10 seconds to reset)Communication distance: >40m (with a smartphone as the receiver, in open outdoor conditions)

Documents

Product wiki

Generator Dimension Drawing

Parts List

Self-powered Wireless Switch-BLE Beacon x 12.4G FPC IPEX1 antenna x 1