Self-powered Wireless Switch (BLE Beacon)

A battery-free wireless switch that generates its own power from the mechanical energy of each button press. The built-in micro power generator and energy storage circuit capture kinetic energy, store it, and transmit a BLE 5.3 beacon signal — no batteries, no wiring, no maintenance.

Each switch has a unique 6-byte address code for secure, interference-free transmission. Compatible with ESP32 and other Bluetooth-enabled microcontrollers, as well as smartphones, making it easy to integrate into home automation, signalling, and IoT projects.

Key Features

• No Battery Required – Self-powered via kinetic energy harvesting from each press
• BLE 5.3 Beacon – Broadcasts on advertising channels 37, 38, and 39 (2.4 GHz)
• Unique Address Code – 6-byte unique identifier for secure, interference-free operation
• 100,000 Press Lifespan – Designed for long-term, maintenance-free use
• No Dedicated Receiver Needed – Works with any BLE-capable device (ESP32, smartphone, etc.)
• Low Actuation Force – Typical 1,300 g with 1.3 mm press distance
• Fast Transmission – 1 Mbps with GFSK modulation for strong anti-interference performance

Specifications

• Frequency: 2.4 GHz
• Advertising Channels: 37 + 38 + 39 (2402, 2426, 2480 MHz)
• Data Format: Supplier-customised Beacon
• Generated Energy: 250 µJ per press
• Actuation Force: ~1,300 g typical
• Press Distance: 1.3 mm
• Press Frequency: Up to 2 presses per second
• Communication Distance: >40 m (open outdoor, smartphone receiver)
• Module Weight: 14 g ± 2.5 g (excluding antenna)
• Module Dimensions: 44 × 22 × 11 mm

Ideal For

• Wireless doorbells
• Call buttons and ordering devices
• Wall switches (no wiring required)
• IoT and smart home automation
• ESP32-based BLE projects

Package Contents

• 1× Self-powered Wireless Switch (BLE Beacon)
• 1× 2.4 GHz FPC IPEX1 Antenna