1. Product Overview
The Holyiot Bluetooth Beacon (Model Holyiot-21014) is part of a product series that includes Bluetooth Low Energy (BLE) modules and Bluetooth Low Energy beacons. Both products utilize low-power Bluetooth communication technology, offering low power consumption, stable transmission, and wide coverage.
- BLE Modules: Suitable for integrating Bluetooth communication functions into various smart devices, enabling data collection and instruction transmission.
- BLE Beacons: Ideal for applications such as indoor positioning, asset tracking, and information push, providing efficient wireless communication support for Internet of Things (IoT) applications.
This specific model, Holyiot-21014, is a 3-axis accelerometer beacon. It is lightweight, compact, and designed for tracking, positioning, personnel attendance, and monitoring.

Manufacturer: Shenzhen Holyiot Technology Co., LTD.
2. Setup Instructions
2.1. For Low-Power Modules (General Guidance)
- Preparatory Work: Confirm the module model matches your application equipment. Prepare the necessary power supply, connection cables, and supporting development tools.
- Hardware Connection: With the device powered off, connect the module's power pins (VCC, GND) to the corresponding power interface, ensuring correct polarity. For communication, connect TX and RX pins as per the product pin diagram.
- Parameter Configuration: Use accompanying development tools or AT commands to configure parameters such as Bluetooth name, communication baud rate, broadcast interval, and connection password.
2.2. For Low-Power Bluetooth Beacons (Holyiot-21014)
- Power Installation: If the beacon housing is configured, open it and insert a CR2032 battery, ensuring correct positive and negative pole placement.
- Parameter Configuration: Connect the beacon via the accompanying configuration APP. Set parameters like broadcast interval, transmission power, UUID, and Major/Minor values. Refer to the APP's operation guide for detailed procedures.
- Installation and Fixation: Choose an appropriate installation location (e.g., walls, ceilings, asset surfaces). Secure the beacon using double-sided tape or other suitable methods to ensure a firm installation that does not obstruct signal transmission.



3. Operating Instructions
After installation, the beacon automatically enters broadcasting mode. Use a Bluetooth-enabled device to search for the beacon signal and verify signal strength and broadcasting stability.
The Holyiot-beacon APP allows for configuration and monitoring of the device. Follow these general steps:
- Download the APP: Search and download "Holyiot-beacon" from your device's APP store.
- Scan for Devices: Open the APP and search for nearby Bluetooth devices. The APP can display devices in Beacon, iBeacon, or Eddystone mode.
- Connect to Device: Select your Holyiot beacon from the list. You may need to enter a password (default: aa14061112 or 8888) to connect.
- Configure Parameters: Once connected, you can modify various parameters such as password, Major, Minor, MAC address, UUID, Name, TX power, and advertising interval (ADV_interval).
- Monitor Data: The APP displays real-time data from the beacon's sensors, including Temperature, Humidity, Pressure, Shake (vibration detection), Button State, and Battery level.
- Switch Beacon Type: The APP allows you to switch the beacon's operating mode between Beacon, iBeacon, and Eddystone. Note that Android phones may not support switching between beacon types; an iPhone may be required for this operation.


Video demonstrating the Holyiot-beacon APP for connecting, modifying parameters, and switching beacon types.
4. Specifications
| Feature | Description |
|---|---|
| Brand Name | Holyiot |
| Model Number | Holyiot-21014 (nRF52810 Bluetooth Module) |
| Origin | Mainland China |
| Radio Transmission Power | -40dBm ~ +4dB (default: +4dB) |
| Wireless Transmission Distance | Up to 50 meters (open space) |
| Supporting Devices | iOS 7.0 and Android 4.3 above |
| Average Current | 49uA (+4dB/500ms) |
| Battery Type | CR2032 |
| Battery Capacity | 220 mAh |
| Supply Voltage | 2.0-3.6V |
| Working Temperature | -20°C ~ 60°C |
| Size (Diameter x Thickness) | 30mm x 8.4mm |
| Weight | 4g |
| Waterproof Rating | IP67 |
| Bluetooth Version | BLE 5.3 (compatible with 5.0/4.2/4.0) |
| Accelerometer | Optional 3-axis accelerometer inside (LIS2DH12) |
| High-concerned chemical | None |


5. Maintenance
- Environment: The product must be used in a clean, dry environment, free from strong interference.
- Temperature and Humidity: Adhere to the specified working temperature (-20°C ~ 60°C) and humidity ranges. Avoid extreme conditions unless the product's IP67 rating is specifically for that environment.
- Handling: This is a precision electronic component. Avoid violent impact, dropping, or disassembly, as this can damage the internal circuit structure.
- Disposal: When discarding the product, please sort and recycle it in accordance with local electronic waste disposal regulations to prevent environmental pollution.
6. Troubleshooting
- No Signal/Unstable Connection: The actual communication distance can vary due to obstructions, electromagnetic interference, environmental humidity, and the performance of supporting equipment. Ensure the installation position is carefully planned for optimal communication quality.
- Device Not Functioning: Ensure the product is used within its specified working voltage range (2.0-3.6V). Using it beyond this range can cause damage, short circuits, or fire risks.
- Damage During Setup: Always perform installation, disassembly, and wiring operations when the power is off to prevent electric shock or product failure.
- Inaccurate Readings/Shortened Life: Avoid using the product in extreme temperatures, humidity, dust, or corrosive gas environments unless it has a clearly stated protection level (e.g., IP67) for such conditions.
- Physical Damage: The product is a precision electronic component. Avoid violent impact, dropping, or unauthorized disassembly, which can damage the internal circuit structure and cause product failure.
7. User Tips
- Semi-Finished Product: This beacon is a semi-finished product. The factory-provided program is primarily for testing hardware functionality. For specific application scenarios, users are expected to write and burn their own corresponding firmware programs.
- Child Safety: Keep the product out of reach of children to prevent accidental operation or ingestion of small components, which could lead to safety accidents.
- APP Compatibility: While the APP supports various configurations, some functions like switching beacon types might require an iPhone for operation, as Android devices may not fully support these changes.
8. Warning/Safety Information
! Warning
- This product is only applicable within the specified working voltage range (2.0-3.6V). Using it beyond this range is strictly prohibited and may cause product damage, short circuits, or fire risks.
- Installation, disassembly, and wiring operations must be carried out when the power is off to avoid electric shock or product failure caused by live operation.
- Do not use this product in extreme temperature, humidity, dust, or corrosive gas environments, unless the product specification clearly indicates that it has the corresponding protection level (such as IP67). Such environments will affect product performance, shorten service life, and may cause safety hazards.
- The product is a precision electronic component. Do not subject it to violent impact, dropping, or disassembly. Disassembly may damage the internal circuit structure and cause the product to fail.
- Please place the product out of the reach of children to prevent accidental operation or ingestion of small components by children, which may cause safety accidents.
- When the product is discarded, please sort and recycle it in accordance with local electronic waste disposal regulations. Do not discard it at will to avoid polluting the environment.
9. Compliance and Support
9.1. Compliance Mark
This product complies with relevant regional regulations. The compliance mark is as follows:
CE
CE Mark
9.2. Technical Support
If you encounter any problems during the use of the product, please contact us for feedback. You can reach technical support at: sales-aliexpress@holyiot.com
9.3. Version Updates
The content of this manual may be updated according to product upgrades. For the latest version, please log in to the manufacturer's official website for inquiry: www.hyyunjia.com





