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| README.md | ||
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| hwdef-bl.inc | ||
| hwdef.dat | ||
| hwdef.inc | ||
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README.md
CubeOrange Flight Controller
The CubePilot CubeOrange flight controller is sold by a range of resellers listed on the CubePilot website
For Detailed information on the CubeOrange see the Cube Module Overview
Features
- STM32H743 microcontroller
- Three IMUs, ICM20602, ICM20948 and ICM20649
- internal heater for IMU temperature control
- internal vibration isolation for first two IMUs
- two MS5611 SPI barometers
- builtin SPI AK09916 magnetometer in the ICM20948 IMU
- microSD card slot
- 5 UARTs plus USB
- ADSB receiver connected to SERIAL5
- 14 PWM outputs
- I2C and CAN ports
- Spektrum satellite connector
- External Buzzer
- builtin RGB LED
- external safety Switch
- voltage monitoring for servo rail and Vcc
- two dedicated power input ports for external power bricks
- external USB connectors (micro USB and JST GH)
Pinout
On each connector the red dot indicates pin 1.
UART Mapping
- SERIAL0 -> USB
- SERIAL1 -> UART2 (Telem1)
- SERIAL2 -> UART3 (Telem2)
- SERIAL3 -> UART4 (GPS)
- SERIAL4 -> UART8 (GPS2)
- SERIAL5 -> UART7 (spare, CONS)
The Telem1 and Telem2 ports have RTS/CTS pins, the other UARTs do not have RTS/CTS.
The CONS port was originally used as a debug console, but is now a general purpose UART (debug output is now on USB).
Connectors
Unless noted otherwise all connectors are JST GH 1.25mm pitch
TELEM1, TELEM2 ports
| Pin | Signal | Volt |
|---|---|---|
| 1 (red) | VCC | +5V |
| 2 (blk) | TX (OUT) | +3.3V |
| 3 (blk) | RX (IN) | +3.3V |
| 4 (blk) | CTS | +3.3V |
| 5 (blk) | RTS | +3.3V |
| 6 (blk) | GND | GND |
GPS1 port
| Pin | Signal | Volt |
|---|---|---|
| 1 (red) | VCC | +5V |
| 2 (blk) | TX (OUT) | +3.3V |
| 3 (blk) | RX (IN) | +3.3V |
| 4 (blk) | SCL I2C1 | +3.3V |
| 5 (blk) | SDA I2C1 | +3.3V |
| 6 (blk) | Button | GND |
| 7 (blk) | button LED | GND |
| (blk) | GND | GND |
GPS2 port
| Pin | Signal | Volt |
|---|---|---|
| 1 (red) | VCC | +5V |
| 2 (blk) | TX (OUT) | +3.3V |
| 3 (blk) | RX (IN) | +3.3V |
| 4 (blk) | SCL I2C2 | +3.3V |
| 5 (blk) | SDA I2C2 | +3.3V |
| 6 (blk) | GND | GND |
CONS port
The CONS port is an additional UART connected to SERIAL5. The pinout in the CONS port table below is ordered so that the GND pin is closest to the cube. The TX pin is closest to the servo rail.
| Pin | Signal | Volt |
|---|---|---|
| 1 | GND | GND |
| 2 | RX (IN) / NC (ADSB CB) | +3.3V |
| 3 | TX (OUT) / NC (ADSB CB) | +3.3V |
SBUS Out port
The SBUSo port is a port attached to the IO processor which can be used to output all servo channels via SBUS. It is enabled by setting the BRD_SBUS_OUT parameter.
The pinout below for the SBUSo port is labelled so that GND is closest to the cube. The 5V pin on the SBUS output port is connected to the servo rail.
When SBUS output is disabled (by setting BRD_SBUS_OUT to 0) you can use the port for analog RSSI input from receivers. To enable for RSSI input you need to set:
- BRD_SBUS_OUT 0
- RSSI_TYPE 1
- RSSI_PIN 103
You cannot have both SBUS output and analog RSSI input at the same time.
| Pin | Signal | Volt |
|---|---|---|
| 1 | GND | GND |
| 2 | 5v(Vservo) | +5.0V |
| 3 | TX (OUT) | +3.3V |
SPKT port
The SPKT port provides a connector for Spektrum satellite receivers. It is needed to allow for software controlled binding of satellite receivers.
The pinout of the SPKT port given below is given with the 3.3V power pin closest to the cube (pin 3).
| Pin | Signal | Volt |
|---|---|---|
| 1 | RX (IN) | +3.3V |
| 2 | GND | GND |
| 3 | 3.3v | +3.3V |
ADC
| Pin | Signal | Volt |
|---|---|---|
| 1 (red) | VCC | +5V |
| 2 (blk) | ADC IN | |
| 3 (blk) | GND | GND |
I2C2
| Pin | Signal | Volt |
|---|---|---|
| 1 (red) | VCC | +5V |
| 2 (blk) | SCL | +3.3 (pullups) |
| 3 (blk) | SDA | +3.3 (pullups) |
| 4 (blk) | GND | GND |
FMU and IO SWD
When the case is removed there are two SWD connectors, one for FMU and the other for IOMCU. The IO SWD connector is the one closer to the servo rail. The GND pin of both connectors is the one furthest from the servo rail.
| Pin | Signal | Volt |
|---|---|---|
| 1 | VCC | +5V |
| 2 | TX | +3.3 |
| 3 | RX | +3.3 |
| 4 | SWDIO | +3.3 |
| 5 | SWCLK | +3.3 |
| 6 | GND | GND |
CAN1&2
| Pin | Signal | Volt |
|---|---|---|
| 1 (red) | VCC | +5V |
| 2 (blk) | CAN_H | +12V |
| 3 (blk) | CAN_L | +12V |
| 4 (blk) | GND | GND |
POWER1&2
| Pin | Signal | Volt |
|---|---|---|
| 1 (red) | VCC | +5V |
| 2 (red) | VCC | +5V |
| 3 (blk) | CURRENT | up to +3.3V |
| 4 (blk) | VOLTAGE | up to +3.3V |
| 5 (blk) | GND | GND |
| 6 (blk) | GND | GND |
USB
| Pin | Signal | Volt |
|---|---|---|
| 1 (red) | VCC | +5V |
| 2 (blk) | D_plus | +3.3V |
| 3 (blk) | D_minus | +3.3V |
| 4 (blk) | GND | GND |
| 5 (blk) | BUZZER | battery voltage |
| 6 (blk) | Boot/Error LED |
RC Input
RC input is configured on the RCIN pin, at one end of the servo rail, marked RCIN in the above diagram. This pin supports all RC protocols. In addition there is a dedicated Spektrum satellite port which supports software power control, allowing for binding of Spektrum satellite receivers.
PWM Output
The CubeOrange supports up to 14 PWM outputs. First first 8 outputs (labelled "MAIN") are controlled by a dedicated STM32F100 IO controller. These 8 outputs support all PWM output formats, but not DShot.
The remaining 6 outputs (labelled AUX1 to AUX6) are the "auxiliary" outputs. These are directly attached to the STM32H743 and support all PWM protocols as well as DShot.
All 14 PWM outputs have GND on the top row, 5V on the middle row and signal on the bottom row.
The 8 main PWM outputs are in 3 groups:
- PWM 1 and 2 in group1
- PWM 3 and 4 in group2
- PWM 5, 6, 7 and 8 in group3
The 6 auxiliary PWM outputs are in 2 groups:
- PWM 1, 2, 3 and 4 in group1
- PWM 5 and 6 in group2
Channels within the same group need to use the same output rate. If any channel in a group uses DShot then all channels in the group need to use DShot.
Battery Monitoring
The board has two dedicated power monitor ports on 6 pin connectors. The correct battery setting parameters are dependent on the type of power brick which is connected.
Compass
The CubeOrangePlus has an AK09916 builtin compass that is part of the ICM20948 IMU.
GPIOs
The 6 PWM ports can be used as GPIOs (relays, buttons, RPM etc). To use them you need to limit the number of these pins that is used for PWM by setting the BRD_PWM_COUNT to a number less than 6. For example if you set BRD_PWM_COUNT to 4 then PWM5 and PWM6 will be available for use as GPIOs.
The numbering of the GPIOs for PIN variables in ArduPilot is:
- PWM1 50
- PWM2 51
- PWM3 52
- PWM4 53
- PWM5 54
- PWM6 55
- EXTERN_GPIO1 1 (requires custom carrier board, and alternate pin configuration 2)
- EXTERN_GPIO2 2 (requires custom carrier board, and alternate pin configuration 2)
Analog inputs
The CubeOrange has 7 analog inputs
- ADC Pin14 -> Battery Voltage
- ADC Pin15 -> Battery Current Sensor
- ADC Pin13 -> Battery2 Voltage
- ADC Pin4 -> Battery2 Current Sensor
- ADC Pin18 -> Vdd 5V supply sense
- ADC Pin8 -> ADC port input
- ADC Pin9 -> EXTERN_GPIO1 (requires custom carrier board)
- ADC Pin5 -> EXTERN_GPIO2 (requires custom carrier board)
- ADC Pin103 -> RSSI voltage monitoring
IMU Heater
The IMU heater in the CubeOrange can be controlled with the BRD_HEAT_TARG parameter, which is in degrees C.
Loading Firmware
The board comes pre-installed with an ArduPilot compatible bootloader, allowing the loading of *.apj firmware files with any ArduPilot compatible ground station.
Acknowledgements
Thanks to ProfiCNC for images and information