SKU: TEL0173
DFRobot’s self-powered wireless BLE beacon module needs no battery. It uses a micro generator (converts press kinetic energy to electricity via electromagnetic induction) and a BLE RF circuit (rectifies/stores energy to broadcast signals). With a 100,000-press lifespan, it’s maintenance-free, ideal for wireless doorbells, call buttons, and state-monitoring applications.
Downloadable Resources
1. Usage Example for Mobile App - BLE Signal Scan
This article guides users on effectively utilizing the NanoBeacon BLE Scanner app for mobile Bluetooth signal scanning, including step-by-step instructions for filtering and resuming scans.
2. Usage Example for ESP32 - BLE Signal Scan
This article guides you through using the ESP32 for BLE signal scanning with the Arduino IDE, detailing the setup and code required for scanning BLE devices, handling beacon data, and displaying device addresses.
Reference
This article explores the principle of BLE switches, detailing how a micro generator and a BLE RF circuit work together to convert kinetic energy into electrical energy for wireless signal broadcasting.
FAQ
1. Please close other background processes on your phone, disconnect from WiFi and mobile networks, and only enable Bluetooth. When your phone is busy processing tasks from other apps, it can cause the NanoBeacon BLE Scanner app to miss some BLE broadcasts during scanning.
2. When there are many obstacles between the receiver and transmitter, it significantly reduces the communication distance.
3. Pressing the button too quickly can lead to excessive power generation, causing the module to enter a protection state. Stop pressing the button and wait for about 10 seconds for it to recover on its own.
4. When the mobile app hasn't received BLE advertisements for a long time, it automatically enters sleep mode and stops scanning. Click the start button in the bottom right corner or pull down the interface to refresh.
Please avoid testing in environments with too many electronic devices. In surroundings where there are numerous BLE devices, the ESP32's processing speed may be insufficient, leading to missed BLE advertisement scans.
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