EDU450 Carrier Board
Introduction
The EDU-450 carrier board is a highly integrated component designed to fit seamlessly into the EDU-450 drone frame. Its primary purpose is to minimize the common wire and module entanglement issues that are often experienced during multi-rotor assembly.
The board offers a range of features, such as built-in power distribution, redundant power supplies for the autopilot, fail-over power selection built-in as a backup, a dedicated payload power regulator, etc.
It is primarily designed with geometric optimization for quadcopters, X8 configurations, and octocopters. It also provides connections for all the functions supported by The Cube. As a result, it can be easily integrated into any vehicle type that is compatible with The Cube.
Features
Up to 8-cell Lithium battery (36V)
100A continuous current
Power and signal for ESCs
5V navigation light port
Built-in power distribution unit (PDU)
Built-in Hall effect voltage and current sensor
Redundant power supplies for flight critical components
Built-in 5V/10A, 7V/1.5A BEC
Main power failure indicator lights
Connectors for all functions of The Cube
RS485 and SPI ports
Power
The carrier board incorporates a built-in voltage and Hall current sensor. The main battery can be connected to the XT60 "MAIN PWR" port on the board, removing the need for an external power brick.
The power distribution system is rated to distribute 100A in total to the ESCs when under stagnant, room-temperature air conditions.
If the EDU450 carrier board is installed within an enclosure or used in challenging conditions, such as high temperatures, the current capacity rating needs to be reduced. For vehicles operating consistently at high currents, conduct a ground test first by using a temperature gun to assess the thermal performance.
The carrier board incorporates a built-in voltage and Hall current sensor. The main battery can be connected to the XT60 "MAIN PWR" port on the board, removing the need for an external power brick.
The power distribution system is rated to distribute 100A in total to the ESCs when under stagnant, room-temperature air conditions.
If the EDU450 carrier board is installed within an enclosure or used in challenging conditions, such as high temperatures, the current capacity rating needs to be reduced. For vehicles operating consistently at high currents, conduct a ground test first by using a temperature gun to assess the thermal performance.
To ensure the built-in sensors on the EDU-450 board accurately read the voltage and current numbers, complete the following steps:
Go to Mission Planner.
Go to Config/Tuning -> Full Parameter List.
Configure the following parameters to the values shown below.
BATT_AMP_OFFSET
0.25
BATT_AMP_PERVOLT
50
BATT_CURR_PIN
3
BATT_MONITOR
4
BATT_VOLT_MULT
12.05
BATT_VOLT_PIN
2
Specification
Size: 170 mm x 145 mm
Weight: 185g (with carbon fiber plate)
Port Interface
RS485 and SPI
The carrier board introduces enhancements such as anti-interference capabilities, high-sensitivity RS485, and a full-duplex, high-speed, synchronous serial communication SPI interface. This interface can be used to connect with Profi-LED or various industrial equipment, thereby offering increased communication support for the extended hardware and a wider range of applications.
Customized Port for HerePro
The carrier board features a dedicated HerePro interface designed for data streamlining, debugging, and power supply functions. This single connection point enhances the overall integration and minimizes excess wiring.
ADS-B External Antenna
The integrated ADS-B system is used to receive air traffic information. You can connect an external antenna to the standard SMA interface to extend the data reception range.
HereLink Airunit Installation
5V BEC
The board can supply 5V to the Main and AUX rails by bridging the following pad with solder.
ProfiLed
The board has four built-in ProfiLed interfaces for connecting and controlling navigation lights.
ESC Port
The ESCs use the Amass-MR30 connector to power the motor and transmit the PWM signals.
The eight ESC ports are for multi-rotor UAVs with either four rotors or eight coaxial rotors.
Pin Identification
ProfiLED
1
5V_LED
2
CI
3
DI
4
CO
5
DO
6
GND
7
GND
SPI
1
5V
2
MOSI
3
MISO
4
SCK
5
CS
6
GND
485
1
Y
2
Z
3
B
4
A
I2C
1
VCC_5V
2
I2C_2_SCL
3
I2C_2_SDA
4
GND
BUZZER
1
BUZZER
2
GND
SBUS
1
S.bus out 1
2
S.bus out 2
3
GND
5V (BEC POWER)
1
5V
2
5V
3
5V
4
GND
5
GND
6
GND
CAN
1
VCC_5V
2
CAN_H
3
CAN_L
4
GND
Serial (Uart)
SERIAL 1 | Telem 1
1
VCC_5V
2
SERIAL_1_TX
3
SERIAL_1_RX
4
SERIAL_1_CTS (TX)
5
SERIAL_1_RTS (RX)
6
GND
SERIAL 2 |Telem 2
1
VCC_5V
2
SERIAL_2_TX
3
SERIAL_2_RX
4
SERIAL_2_CTS (TX)
5
SERIAL_2_RTS (RX)
6
GND
SERIAL 3
1
VCC_5V
2
SERIAL_3_TX
3
SERIAL_3_RX
4
SERIAL_3_CTS (TX)
5
SERIAL_3_RTS (RX)
6
GND
SERIAL 4
1
VCC_5V
2
SERIAL_4_TX
3
SERIAL_4_RX
4
SERIAL_4_CTS (TX)
5
SERIAL_4_RTS (RX)
6
GND
ADC
1
VDD_5V_Periph
2
Pressure sense in
3
GND
Debug
IO_DEBUG
1
GND
2
SWCLK
3
SWDIO
4
NC
5
NC
6
5V
FMU_DEBUG
1
GND
2
SWCLK
3
SWDIO
4
NC
5
NC
6
5V
Indication LED
Main Power Failure if LED is ON
The following Github link can be used to revise and update the EDU450 carrier board information: https://github.com/CubePilot/cubepilot-docs/blob/master/carrier-boards/edu450-carrier-board.md
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