P11011: Modular Motion Tracking Knee Flexion Unit V1
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Sensor Comparisons

Atomic IMU Razor Ultra-Thin IMU Razor IMU

6 degrees of freedom

UART Interface

XBee TM RF Module

Analog to digital converter

Microprocessor (Atmel ATMega 168TM)

Battery powered

Up to 6g sensitivity accelerometer

300 degrees/second gyros

Operates between 3.4 and 10V

Size: 1.85in x 1.45in x 0.975in

6 degrees of freedom

Analog outputs

No converter

No microprocessor

Need 3.3VDC power source

300 degrees/second gyros

Up to 3g sensitivity accelerometer

Size: 0.688in x 1.75in

9 degrees of freedom

FTDI output (serial, USB)

Bluetooth Mate, XBee Explorer pin matchups

Analog to digital converter

Microprocessor (ATMega 328)

Operates between 3.5 and 16V

Up to 16g sensitivity accelerometer

300 degrees/second sensitivity

Size: 1.95in x 1.10in