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MMRL+ – MetaMotionRL+


The MMRL+ sensing solution is a wearable device that includes the following sensors:

BMI160 6-axis Accelerometer + Gyroscope
BMM150 3-axis Magnetometer
BOSCH 9-axis Sensor Fusion
8MB Memory
Lithium-ion Rechargeable battery
Vibrating Coin motor
and also Bluetooth Low Energy, CPU, button, LED, and GPIOs

Typical Bluetooth range in case: 15ft-30ft/5m-10m.

Typical Bluetooth range outside of case (PCB only): 30ft-100ft/10m-30m.

BULK PRICING AVAILABLE and automatically applied at checkout.

SKU: MMRLP Category: Tags: , ,



  • 1x MetaMotionRL board
  • 1x coin vibration motor
  • 1x plastic white case (optional)
  • 1x USB rechargeable battery

Great motion and gesture tracking platform that comes with sensor fusion ideal for medical and health applications. This is our motion, health, fitness, and gaming sensor solution. 


MetaMotionRL is ideal for logging and streaming sensor data. Record raw sensor data via Bluetooth at up to 800Hz. Stream raw sensor data at up to 100Hz. Download the data and access it as a CSV file on your phone, hub, tablet, computer, server, or as a JSON file using our APIs.

The board comes in a very small rectangular form factor, 8MB of NOR FLASH memory, a light sensor, temperature sensor, and sensor fusion with 9 axis of motion sensing (3-axis accelerometer + 3-axis gyroscope + 3-axis magnetometer).

The sensor fusion combines the measurements from 3-axis gyroscope, 3-axis geomagnetic sensor and a 3-axis accelerometer, to provide a robust absolute orientation vector in form of Quaternion or Euler angles. The algorithm fuses the sensor raw data in an intelligent way to improve each sensors output. This includes algorithms for offset calibration of each sensor, monitoring of the calibration status and Kalman filter fusion to provide distortion-free and refined orientation vectors.

There is a coin vibration motor added to give haptic feedback to users as a gentle vibration (similar to a smartphone call alert).

There is an LED, GPIOs, and push button switch on the board. The board is powered by a 60mAH lithium-ion 3.7V batteryThe board is based on the nRF52 SOC from Nordic built around a ARM® Cortex™ M4F CPU and Bluetooth Low Energy. The off board memory stores the sensor data on the MetaSensor to be retrieved at any time by your Device (Smartphone, Hub, Tablet or PC).

Sensor data is available:

  • as a CSV file on your Smartphone, Tablet, Computer or BLE Device (using the MetaBase App)
  • as an array in your own App code (using our Python/C++/Java/Javascript/Swift APIs)


  • Limited warranty. See our terms.
  • If you have issues with your order, please contact us at
  • Note: Sensor is not intended to diagnose, treat, mitigate, cure, or prevent any disease/condition.

For all customers:

  • You will be responsible for all the local taxes and custom duty
  • Return shipping will be paid by the customers

Sensors are designed in San Francisco, CA and assembled/manufactured in U.S.A, China and Korea.

Export and Compliance

– EU HTS: 8473.30.2000
– US HTS: 8473.30.1180
– Country of Origin/Manufacture: USA


– Ships in 2-3 business days when in stock
– Ships via UPS and USPS
– Packed with Lithium battery warning
– Packed in 3M ESD sensitive bags


– White plastic case. IP40 Water resistant. Snapable
– Dimensions w/ case: L: 1.42in / 36mm x W: 1.06in / 27mm x H: 0.39in / 10mm
– Dimensions w/out case: L: 1.13in / 29mm x W: 0.7in / 18mm x H: 0.24in / 6mm


– 60mAH micro-USB rechargeable lipo battery (included)


– Weight w/ case: 0.3oz
– Weight w/out case: 0.1-0.2oz


– Bluetooth LE 4.2 – 2.4Ghz
– Up to 100ft of range – typical 10m
– Stream sensor Data from 1 Hz to 100 Hz
– Log sensor Data from 1 Hz to 400 Hz


– iPad 3rd generation and higher
– iPhone 5th generation and higher
– Android 4.4 and higher with Bluetooth Low Energy Technology
– Windows 10 and higher


– Logging (data is saved in local memory) sensor
– Streaming (data is sent live to your device) sensor
– See


– Nordic nRF52 32-bit ARM® Cortex™ M4F CPU
– 512kB flash + 64kB RAM
– Micro push-button
– I2C + 4 GPIOs + 1 PWM (high current driver) to add more sensors


– Streaming AND Logging Sensor
– 8MB NOR FLASH – Off board
– 100K – 500K sensor data entries with timestamps


– Accelerometer (A): 16 bit
±2g: 16384LSB/g
±4g: 8192LSB/g
±8g: 4096LSB/g
±16g: 2048LSB/g
Noise density (typ.): 180 μg/√Hz


– Gyroscope (G): 16bit
±125°/s: 262.4 LSB/°/s
±250°/s: 131.2 LSB/°/s
±500°/s: 65.6 LSB/°/s
±1000°/s: 32.8 LSB/°/s
±2000°/s: 16.4 LSB/°/s
Noise density (typ.): 0.008 °/s/√Hz


– Magnetometer(T): 16bit
±1300μT (x,y-axis) range
±2500μT (z-axis) range
Resolution: 0.3μT

Sensor Fusion

– Advanced 9-axis sensor fusion algorithms
– Fast in-use background calibration of all sensors and calibration monitor
– Enhanced magnetic distortion detection and suppression
– Real-time motion tracking due to built-in group delay compensation
– Gyroscope drift cancellation
– Supports various power modes for switching on/off sensors and algorithm modules

Coin motor

– Coin vibration motor, also known as shaftless or pancake vibrator motor
– 10mm diameters
– Rated voltage: 3 VDC
– Operating voltage: 2.7 VDC to 3.3 VDC
– Rated current: 100 mA maximum
– Great fo light-weight wearable devices
– Best for any light-weight device requiring a silent alert or haptic feedback
– Vibration strength is not variable
– Vibration timing is variable