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Gravity: IN100 BLE Sensor Data Broadcasting Module

SKU: TEL0149

Gravity: IN100 BLE Sensor Data Broadcasting Module is a wireless beacon with built-in 11-bit ADC, collecting digital/analog sensor data and broadcasting via Bluetooth. Bluetooth devices (smartphones, ESP32, etc.) access data in range. It uses low-power BLE 5.3, supports iBeacon/Eddystone/custom formats, and configures (broadcast settings) via GUI without programming. After setup, it auto-runs on power-on. Ideal for IoT in smart farms, offices, factories, warehouses. Note: Need 3.3V USB-TTL tool for configuration.

Overhead shot of four small black BLE sensor beacons with visible components and mounting holes.-DFRobot product sku:TEL0149 image.

Downloadable Resources

  • Docs
  • Tech Specs
    • 1. Getting Started
    2. Configuration and Burning Guide

    This guide provides a detailed walkthrough for configuring and burning the Gravity: BLE sensor beacon using the NanoBeaconConfigTool. It includes customization of advertising data formats (iBeacon, Eddystone, Custom), ADC and GPIO configuration, hardware connections, and burning procedures. The article emphasizes careful data verification before burning, as the process is irreversible, and highlights the use of 'Run in RAM' for testing configurations before finalization.
    3. Usage Example for Mobile App - Get Sensor Data

    This example demonstrates how to get sensor data from the BLE Sensor Beacon using a mobile app (nRF Connect).
    4. Usage Example for ESP32 - Get Sensor Data

    This article offers a detailed guide on using the ESP32 with Arduino IDE to acquire sensor data, specifically focusing on BLE Sensor Beacon and LM35 Temperature Sensor, including hardware preparation, sample code, and step-by-step operation procedures.
    Reference

    Specification

    Parameter Value
    Operating Voltage 1.2-5.5V DC
    Operating Current <2mA @Eddystone TLM
    Supported sensors 1.2-3.3V digital/analog sensors
    Input Signal digital/analog signals
    Operating Frequency Range 2.4GHz ISM
    Modulation GFSK
    Transmitting Power +5.0dBm
    PCB Size 27mm×33.5mm/1.06×1.32inch
    Mounting Hole Size inner diameter of 3.1mm/outer diameter of 6mm

    Pinout

    NO. Name Description
    1 Power Input 1.2-5.5V DC power input
    2 Burning/Debugging Used for module debugging and burning
    3 Sensor Signal Input "A": Sensor signal input
    "-": Sensor power supply GND
    "+": Sensor power supply VCC
    4 Sensor VCC Select Short circuit: 3.3V continuous power supply
    Disconnected (default): supply power only when broadcasting

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