Description

Worlds Smallest 9 DOF Wearable IMU with BLE and USB – SFM2

Multiple SFM2’s can be connected simultaneously(5 or more depending on ODR Rates) and provides timestamped sensor data with 25us resolution with a user configurable time offset to be able to synchronize multiple SFM2’s. The SFM2 provides individual sensor configuration and completely selectable Sensor Output to BLE or USB2.0 interfaces.

• Small Form Factor: 40.9 x 28.1 x 14.5mm
• Android and iOS Mobile App for easy configuration, 3D View, and data-logging to CSV file
• Connect 5 or more SFM2’s to a single Mobile Device
• 4 Default SFM2 Modes: OFF, LOW POWER(26Hz), BALANCED(104Hz), PERFORMANCE(417Hz)
• Scrolling Real-time graphing for Pressure(hPa)/Altimeter, Relative Humidity, and Temperature
• Highly Customizable every sensor can be individually configured
• Fusion and Raw Sensor Data Streams can be individually enabled. Multiple Streams Simultaneously
• 1Mbps USB/COM Port Interface
• Ultra Low Power Consumption( ~156hour battery life in Low Power Mode using 250mAh battery)
• ‘Tare’ function to zero coordinate system
• Global Reference Frame Enable/Disable with user configurable offset
• Selft-Test, Temperature Compensation, and automated calibration

The SFM2 can be made available as an OEM model either as an assembled PCB with 250mAh battery or as a complete product with an enclosure. Sensor Maestros can completely customize the SFM2 including hardware, firmware, mobile application, and enclosure.

BLE & USB2.0(COM Port) Interfaces

Pressure and Relative Humidity/Temperature Options(-ENV)

HIGHLIGHTS

• Ultra Low Drift/High Precision <3°/hr
• Ultra Low Power(~156hour battery life in Low Power Mode)
• Up to 833Hz Sensor Fusion Output
• Connect 5+ SFM2’s running 208Hz Quaternian output via BLE
• Self-Test, Automated Calibration, and Temperature Compensation
• ‘Tare’ function to zero orientation
• Headtare to allow manual ‘Tare’ adjustment
• Global Reference Frame Enable/Disable w/ user defined offset
• Timestamped Data with 25us resolution with configurable Offset
  • Synchronize multiple SFM2’s
• 12 Sensor Data Streams Available: 3-Axis ACC/GYR/MAG, Pressure/Altimeter, RH & Temp
• iOS and Android App for configuration, data-loging, and 3D View
  • Connect 5+ SFM2’s simultaneously
  • Data-log timestamped SFM2 sensor streams into CSV file and push to cloud
• 1/3 Power Consumption, 1/3 Cost of comparable performance VN100, VN200, VN300 IMU’s
• Over the Air firmware updates
• User configurable name for allowing multiple SFM2’s in application
• Volume Discounts & OEM Customization

SPECIFICATIONS

• USB/COM Port Interface with ASCII Command Set
  • 1Mbps data rate
  • ASCII or Binary Output
  • Python API Library for easy application development
• Sensor Fusion and Raw Sensor data streams all with data output enable
  • Enable multiple streams simultaneously
• 12 Sensors: 3-Axis Gyro, 3-Axis Accelerometer, 3-Axis Magnetometer, Altitude, Temperature, and Humidity
• Sensor Fusion Data Rates: 833, 417, 208, 104, 52, 26, 12.5Hz
  • Quaternian
  • ‘Tared’ Quaternian
  • Linear Acceleration
  • Compass Heading and Tilt
  • Euler Angle
• Timestamped Sensor Data with 25us Resolution and user configurable OFFSET to synchronize multiple SFM2’s
• TARE function to Zero Quaternian Coordinate System
• Global Reference Enabled/Disable with user configurable offset
• Over the Air Firmware Updates
• Completely Configurable Sensor Data Output via Bluetooth and USB interfaces
• 250mAh Rechargable Lithium Polymer Battery
• Automatic Battery Switchover from Battery to USB Power
• +/-15Kv ESD Protection
• Enclosure slot for velcro strap for use in wearing or attaching the SFM2
• -ENV Option for Pressure, Relative Humidity and Temperature sensors and enclosure with holes to expose sensors to external environment

Sensor Details

• ACCELEROMETER
  • ODR RATES: 0, 12.5, 26, 52, 104, 208, 417, 833, 1667Hz
  • FULL SCALE RANGES: 2, 4, 8, 16g Full Scale Range Settings
  • Configurable Power Modes: High Performance, Normal, Ultra Low Power
  • Output Filter Configurations(Low Pass and High Pass Configurations)
  • 2nd Stage Low Pass Filter Enable/Disable
  • Fast Settling Enable/Disable
•  GYRO
  • ODR Rates: 0, 12.5, 26, 52, 104, 208, 417, 833, 1667Hz
  • FULL SCALE RANGES: 125, 250, 500, 1000, 2000 dps
  • Low Pass Filter configurable settings
  • High Performance Enable/Disable
  • High Pass Filter configurable settings
•  MAGNETOMETER
  • ODR Rates: 0, 12.5, 26, 52, 104Hz(Calibrated and Temperature Compensated)
  • Low Power Enable/Disable
  • Low Pass Filter Enable/Disable
• PRESSURE/ALTIMETER: 1, 10, 25, 50, 75, 100Hz
  • HIGH & LOW Alarms configurable by user
  • TARE function to zero Altitude
• Temp/Humidity: Continuous or Sample Interval Based(user configurable)

Bluetooth Low Energy Interface

• Bluetooth Low Energy interface to provide easy means for application developers to make use of the SFM2 for developing custom applications
• Optimized Bluetooth Services for Sensor Configuration/Enable and Sensor Fusion Configuration/Enable
• Each Sensor has configurable Sample Rate, Full-Scale Range, Filter Options, Self-Test, Data Enable, Notifications
• Every Sensor Output has its own characteristic/Notification
• Easy to use BLE Characteristic Map and Services

Android and iOS Mobile App for configuration and 3D orientation view

• Connect up to 6 SFM2’s simultaneously
• 4 Default SFM2 Configurations: OFF, Low Power(26Hz), Balanced(104Hz), Performance(417Hz)
• 3D View of SFM2
• Data-log multiple sensor streams to CSV file and push to cloud
• Real-time scrolling graphs for RH, Temp, Pressure(hPa), and Altitude
• Configuration of each individual sensor and data output enable
• Tare and Drag SFM2 3D representation to user defined orientation
• Global Reference Enable/Disable with user configurable Offset
• BLE & USB/COM Statistics/Throughput analysis
• Store custom user configuration, change sensor name, restore factory defaults
• Run Self-Test

Applications

• Sports and Fitness Motion Montioring and Recording
• Absolute Orientation
• E-Compass Heading
• Drone Control
• Stabilization Control
• Vibration Analysis
• Shock and Motion Detection
• Inclinometer and Angle Measurement

Upon Purchase Sensor Maestros Can Provide

• Python API Library
• PyGATT on Raspberry Pi example code
• Python ASCII Command Test software

Optional Capabilities:

• ECG/EKG Options
• PC Graphing Software to display ECG/Heart Rate
• Extended Range Bluetooth Low Energy: 800m(1/2mile) to 1600m(~1mile)

OEM Customizable:

• Enclosure has 2 locations for OEM logos, stickers, QR Code, etc
• Custom Hardware, Firmware, Application, Mobile App Development.