The motherboard is a fiberglass plane home to a smattering of circuit elements. We do our due diligence and identify:

NXP LPC11U37F 32-bit ARM Cortex-M0 microcontroller

Nordic Semiconductor nRF51822 Bluetooth Smart and 2.4GHz proprietary SoC

Invensense MPU-6500 Six-Axis (Gyro + Accelerometer) MEMS MotionTracking device

Allegro Microelectronics A1304 Hall-effect sensor

Texas Instruments TPS61029 200 mA / ADJ DC-DC boost converter

Texas Instruments TLV70230 300 mA / 3.0 V LDO regulator