The iCog Rate sensor uses the Freescale MMA8652FC 3-axis, 12-bit digital accelerometer. Users should consult the Freescale MMA8652FC datasheet for more information about the sensor.

CognIoT™ iCog™ sensor boards come fitted with an ‘ID-IoT’ system chip. This is an EEPROM with 1kbytes of user storage (for calibration data etc.). The ID-IoT chip contains a unique 32-bit number to identify the sensor board.

The Sensor – MMA8652FC

• 3-axis accelerometer
• 12-bit resolution
• Interrupt on pre-programmed inertial events.
• ±2g, ±4g and ±8g dynamically selectable full scale ranges
• 4 channels of motion detection – freefall, motion, pulse and transient
• Portrait/landscape detection with programmable hysteresis
• 32-sample FIFO
• 1024 counts/g
• Low-pass and high-pass filters modes.

ID-IoT chip – eeprom

• Prewired for base I2C address
• Configurable for different addresses
• o A0,A1 address selection may be changed
• o Allows up to 4 icogs on same bus
• o See application note for details
• 1KB user data space
• 32-bit Unique ID No. (UID)
• Option to fit pull up resistors on SDA/SCL lines if required

All iCogs are supplied with a 0.1" pin header for self assembly.