Specifications
The following shows the key specifications of The Cube.
Three IMUs (applies to all The Cubes)
Two on the IMU board.
One fixed on the FMU.
Two onboard compasses (Cube Black, Cube Green, and Cube Blue)
One on the IMU board.
One fixed on the FMU.
One onboard compass (Cube Orange and Cube Yellow)
Two Barometers (applies to all The Cubes)
One on the IMU.
One on the FMU.
Dual Power Input (applies to all The Cubes)
Redundancy option from the servo rail removed and replaced with a dedicated second power plug.
A dedicated power protection Zener diode and Fet added for protection against voltages over 5.6V being applied to Aux input 2.
Available only on the "PRO" carrier board. The mini carrier board still draws the backup power from the servo rail.
Dual External I2C (applies to all The Cubes)
Allows connection to either I2C port, potentially allowing two GPS/Mag units to be plugged in without the Mags conflicting.
Power Monitoring (applies to all The Cubes)
Power monitoring pins are routed to the I/O chip. This allows power event logging during an inflight reboot.
Brick OK, Backup OK, and FMU 3.3V are all connected to a digital pin on the I/O via a 220Ohm resister.
I/O Ports (applies to all The Cubes excluding the CAN Bus interface)
14 PWM servo outputs (eight from I/O and six from FMU).
R/C inputs for CPPM, Spektrum/DSM, and S.Bus.
Analog/PWM RSSI input.
S.Bus servo output.
Five general-purpose serial ports; two with full flow control.
Two I2C ports.
One SPI port (un-buffered, not recommended for use as it is only for short cables).
Two CAN Bus interfaces.
Three analog inputs.
High-powered piezo buzzer driver on expansion board.
High-power RGB LED (I2C driver compatible; only connected externally).
Safety switch/LED.
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