Tiny BLE - BLE + 6DOF Mbed Platform
Tiny BLE - BLE + 6DOF Mbed Platform
Tiny BLE - BLE + 6DOF Mbed Platform
The Tiny BLE is a compact, ARM Cortex-M0 based microcontroller development board that integrates Bluetooth Low Energy connectivity with a 6-axis inertial measurement unit (6DOF accelerometer and gyroscope), enabling rapid prototyping of wearable IoT devices and motion-sensing applications. Professional engineers and IoT developers leverage this platform to build battery-efficient wireless sensor networks, fitness trackers, and gesture recognition systems that require both real-time motion detection and reliable BLE communication. This board solves the critical challenge of combining wireless connectivity with precise motion tracking in a minimal footprint, eliminating the need for multiple discrete components and reducing development time significantly.
Product Overview
The Tiny BLE operates on the mbed OS ecosystem, providing a robust, open-source embedded operating system optimized for IoT and wearable applications. At its core, the board features an nRF51822 SoC (System on Chip) that integrates a 16 MHz ARM Cortex-M0 processor with a dedicated 2.4 GHz Bluetooth Low Energy radio, consuming minimal power during wireless transmission. The integrated 6DOF IMU (Inertial Measurement Unit) comprises a 3-axis accelerometer and 3-axis gyroscope, capable of detecting motion ranges up to ±16g acceleration and ±2000 degrees per second angular velocity, making it ideal for capturing complex human movement patterns and device orientation changes with high fidelity.
What distinguishes the Tiny BLE from competing platforms is its seamless integration with the mbed development environment, offering cloud-based compilation, extensive peripheral libraries, and direct support for BLE GATT (Generic Attribute Profile) implementation without requiring deep knowledge of Bluetooth stack architecture. The board features 16 KB of RAM and 128 KB of flash memory, sufficient for sophisticated sensor fusion algorithms and multiple concurrent BLE connections. Its ultra-low power design enables months of operation on a single coin-cell battery, achieved through dynamic frequency scaling, sleep modes, and intelligent radio duty-cycling—critical requirements for untethered wearable deployments.
Key Specifications
| Specification | Details |
| Product Type | BLE Microcontroller Development Board with 6DOF IMU |
| Brand | ARM mbed |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Processor | ARM Cortex-M0 @ 16 MHz |
| Wireless Protocol | Bluetooth Low Energy 4.0 (2.4 GHz) |
| Memory | 16 KB RAM, 128 KB Flash Storage |
| 6DOF Sensor | 3-axis Accelerometer (±16g) + 3-axis Gyroscope (±2000 dps) |
| Operating Voltage | 1.8V to 3.6V (Coin-cell compatible) |
| GPIO Pins | 14 digital I/O with PWM and analog input support |
Key Features
- Integrated Bluetooth Low Energy 4.0 radio enabling 10-100 meter wireless range with ultra-low power consumption, perfect for battery-powered wearable applications
- 6DOF IMU combining accelerometer and gyroscope for precise motion tracking, gesture recognition, and orientation detection with minimal latency
- mbed OS cloud development environment with drag-and-drop programming, eliminating complex toolchain setup and enabling rapid iteration cycles
- Multiple low-power sleep modes (System OFF, System ON) with wake-on-interrupt capability, extending battery life to several months on a single coin cell
- 14 general-purpose I/O pins with configurable PWM, SPI, I2C, and UART interfaces for seamless integration with external sensors and peripherals
- Hardware security features including AES encryption support for secure BLE communication and data transmission
Applications and Use Cases
- Fitness and Activity Trackers: Real-time step counting, calorie estimation, and sleep quality monitoring using accelerometer and gyroscope fusion algorithms with BLE transmission to smartphones
- Gesture Recognition Systems: Detect hand gestures and motion patterns for IoT device control, gaming interfaces, and accessibility applications with sub-100ms latency
- Wearable Health Monitors: Build fall detection systems for elderly care, posture monitoring devices, and rehabilitation tracking with instant BLE alerts to caregivers
- Industrial IoT Sensors: Deploy wireless vibration monitoring nodes for predictive maintenance, equipment tracking, and asset management in factory environments
- Robotics and Drone Control: Use 6DOF data for autonomous stabilization, orientation feedback, and wireless command reception in embedded robotic systems
- Smart Home Automation: Create motion-triggered wireless sensors for occupancy detection, door/window monitoring, and context-aware lighting control
How to Use
Begin by creating a free account on the mbed online compiler (mbed.org) and selecting the Tiny BLE as your target platform. Connect the board to your computer via USB for power and programming—no external programmer is required. The mbed platform provides pre-built libraries for BLE GATT services, IMU sensor reading, and low-power management, allowing you to import example projects and customize them for your application. Start with simple accelerometer data logging to verify sensor connectivity, then progressively integrate BLE advertising and GATT characteristic definitions to expose sensor data to mobile applications.
For advanced implementations, configure the 6DOF sensor's interrupt pins to trigger motion detection events, reducing processor wake cycles and extending battery life. Utilize the mbed OS RTOS (Real-Time Operating System) features to run concurrent tasks—one thread reading IMU data at 100 Hz while another manages BLE communication—ensuring responsive sensor fusion without blocking wireless operations. Test your application thoroughly in low-power modes using a multimeter to measure current consumption; typical idle current should be below 5 microamps when in System OFF mode, confirming proper configuration of sleep states and interrupt wake sources.
Frequently Asked Questions
What is the maximum BLE communication range of the Tiny BLE?
The Tiny BLE achieves 10-100 meters of open-air communication range depending on antenna orientation, environmental interference, and transmit power settings. In typical indoor environments with obstacles, expect 10-30 meters. The mbed libraries allow software control of TX power (0 to -30 dBm), enabling range optimization based on power budget and application requirements.
Can I use the Tiny BLE without the mbed online compiler?
Yes, you can use offline development tools including ARM Keil MDK, GCC toolchain, or other ARM-compatible IDEs. However, the mbed online compiler is recommended for beginners as it eliminates toolchain complexity and provides instant access to a comprehensive component library. Offline development requires manual setup of the ARM CMSIS libraries and BLE stack, adding significant configuration overhead.
How accurate is the 6DOF IMU for motion detection?
The integrated IMU provides ±16g acceleration range with approximately 2mg resolution and ±2000 degrees per second gyroscope range with 70 mdps resolution. This accuracy is suitable for step counting, fall detection, and gesture recognition. For applications requiring higher precision (sub-milligravity measurements), consider external high-resolution sensors connected via I2C or SPI interfaces.
What battery type should I use with the Tiny BLE?
The board operates from 1.8V to 3.6V, making it compatible with CR2032 coin cells, AA/AAA batteries, or lithium polymer cells. A CR2032 (220 mAh) provides several months of operation in typical low-power configurations. Use a battery holder with integrated power switch or implement software-controlled power management via a P-channel MOSFET for complete power isolation during extended idle periods.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
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- Returns: 7-day return policy on manufacturing defects only
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