In stock

MetaMotion is our motion tracking and fitness solution.

The MetaMotion C comes with a Case, Wearable accessory, a coin-cell Battery, Bluetooth Low Energy, an ARM M4 MCU, FLASH memory, a button, an LED, GPIOs and the following sensors:

Ships in 2 to 3 business days when in stock.

SKU: MMOTIONCP Category: Tags: , ,



MetaMotion is the motion and gesture tracking platform and comes with sensor fusion ideal for sports and fitness applications.

The board comes in a very small round form factor, 8MB of NOR FLASH memory and sensor fusion with 10 axis of motion sensing (3-axis accelerometer + 3-axis gyroscope + 3-axis magnetometer + barometer/altimeter/pressure).

There is an LED, GPIOs, and push button switch on the board.

The board is powered by a coin cell battery.

The board is based on the nRF52 SOC from Nordic built around a ARM® Cortex™ M4F CPU and Bluetooth Low Energy.

The 8MB of extra memory allows applications up to 24 hours of sensor data gathering at high sampling rates. Most applications are able to log sensor data up to 2 months of data in the field at slow or medium sampling rates.

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.

Additional information


Dimensions: 0.94in / 24mm diameter
Weight: 0.2 oz

Case (with board)

Dimensions: L: 1.08in / 27mm x W: 1.08in / 27mm x H: 0.42in / 8mm
Weight: 0.2oz
Description: White plastic case. Water resistant. Button integrated. Snap together.


Dimensions: L: 8.61in / 219mm x W: 1.14in / 29mm x H: 0.32in / 8mm
Weight: 0.3oz
Description: Simple Black rubber band with plastic snaps.


Dimensions: L: 8.62in / 229mm x W: 1.15in / 29mm x H: 0.34in / 9mm
Weight: 0.4oz
Description: Traditional Black rubber band with metal fastener.


Dimensions: L: 1.72in / 44mm x W: 1.13in / 29mm x H: 0.69in / 18mm
Weight: 0.3oz
Description: Black rubber clip for pocket, belt or bra.


Bluetooth 4.0 – 2.4Ghz (up to 100ft of range – typical 10m)


Nordic nRF52 32-bit ARM® Cortex™ M4F CPU with 512kB flash + 64kB RAM
Micro push-button
I2C + 4 GPIOs

Logging / Memory

Streaming AND Logging Sensor
8MB NOR FLASH – Off board
Up to 500K sensor data entries


200mAH coin cell lithium micro-USB rechargeable battery (included)


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


±1300μT (x,y-axis) range
±2500μT (z-axis) range
0.3μT resolution


300…1100 hPa
Resolution of data: 0.01 hPa (< 10 cm)


-40…85°C range
±0.5 °C, typ. accuracy

Ambient Light

Full dynamic range from 0.01 lux to 64k lux
16-bit effective resolution

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