Mini Carrier Board

Working Conditions and Performance

About

Description

POWER input voltage / rated input current

4-5.7V / 2.5A; 0-20V is safe for the system but it will not work

POWER rated output / input power

14 W

USB port input voltage / rated input current

4-5.7V / 250mA

Servo rail input voltage

4-10.5V

Waterproof

Not waterproof. External waterproof protection is needed

Working temperature

-10°C / 55°C

Size and Specifications

Type

Description

Mini Carrier Board Size / Chassis Material

47.5x38.5x17.8 (mm) / ABS Molding

Interfaces and Definitions

Pinout

Red dot on plug side denotes pin 1

Mini Carrier Board Interface Model

Ports

Corresponding Connecter Model

GPS1

JST-GH 1.25 mm (8-pin)

GPS2

JST-GH 1.25 mm (6-pin)

TELEM1

JST-GH 1.25 mm (6-pin)

TELEM2

JST-GH 1.25 mm (6-pin)

I2C

JST-GH 1.25 mm (4-pin)

CAN2

JST-GH 1.25 mm (4-pin)

POWER1

Molex CLIK-Mate 2 mm (6-pin)

POWER2

Molex CLIK-Mate 2 mm (6-pin)

BUZZER

DF13 1.25 mm (2-pin)

Mini Cube 80-pin DF17 Connector Assignments (same as the Cube Black)

Pin #

Name

Direction

Description

1

FMU_SWDIO

I/O

FMU serial wire debug I/O

2

FMU_LED_AMBER

O

Boot error LED (drive only, controlled by FET)

3

FMU_SWCLK

O

FMU serial wire debug clock

4

I2C_2_SDA

I/O

I2C data I/O

5

EXTERN_CS

O

Chip select for external SPI (NC, just for debugging)

6

I2C_2_SCL

O

I2C clock

7

FMU_!RESET

I

Reset pin for the FMU

8

PROT_SPARE_1

Spare

9

VDD_SERVO_IN

I

Power for last resort I/O failsafe

10

PROT_SPARE_2

Spare

11

EXTERN_DRDY

I

Interrupt pin for external SPI (NC, just for debugging)

12

SERIAL_5_RX

I

UART 5 RX (Receive Data)

13

GND

System GND

14

SERIAL_5_TX

O

UART 5 TX (Transmit Data)

15

GND

System GND

16

SERIAL_4_RX

I

UART 4 RX (Receive Data)

17

SAFETY

Safety button input

18

SERIAL_4_TX

O

UART 4 TX (Transmit Data)

19

VDD_3V3_SPEKTRUM_EN

O

Enable for the spectrum voltage supply

20

SERIAL_3_RX

I

UART 3 RX (Receive Data)

21

PRESSURE_SENS_IN

AI

Analogue port, for pressure sensor, or Laser range finder, or Sonar

22

SERIAL_3_TX

O

UART 3 TX (Transmit Data)

23

AUX_BATT_VOLTAGE_SENS

AI

Voltage sense for Aux battery input

24

ALARM

O

Buzzer PWM signal

25

AUX_BATT_CURRENT_SENS

AI

Current sense for Aux battery input

26

IO_VDD_3V3

I

IO chip power, pinned through for debugging

27

VDD_5V_PERIPH_EN

O

Enable voltage supply for Peripherals

28

IO_LED_SAFET_PROT

O

IO-LED_SAFETY(safety LED) pinned out for IRIS

29

VBUS

I

USB VBus (VDD)

30

SERIAL_2_RTS

UART 2 RTS (Request To Send)

31

OTG_DP1

I/O

USB Data+

32

SERIAL_2_CTS

UART 2 CTS (Clear To Send)

33

OTG_DM1

I/O

USB Data-

34

SERIAL_2_RX

I

UART 2 RX (Receive Data)

35

I2C_1_SDA

I/O

I2C data I/O

36

SERIAL_2_TX

O

UART 2 TX (Transmit Data)

37

I2C_1_SCL

O

I2C clock

38

SERIAL_1_RX

I

UART 1 RX (Receive Data)

39

CAN_L_2

I/O

FMU CAN bus Low signal driver

40

SERIAL_1_TX

O

UART 1 TX (Transmit Data)

41

CAN_H_2

I/O

FMU CAN bus High signal driver

42

SERIAL_1_RTS

UART 1 RTS (Request To Send)

43

VDD_5V_PERIPH_OC

I

Error state message from peripheral power supply

44

SERIAL_1_CTS

UART 1 CTS (Clear To Send)

45

VDD_5V_HIPOWER_OC

I

Error state message from High power peripheral power supply

46

IO_USART_1_TX

O

I/O USART 1 TX

47

BATT_VOLTAGE_SENS_PROT

AI

Voltage sense from main battery

48

IO_USART1_RX_SPECTRUM_DSM

O

Signal from Spectrum receiver

49

BATT_CURRENT_SENS_PROT

AI

Current sense from main battery

50

FMU_CH1_PROT

O

FMU PWM output channel 1

51

SPI_EXT_MOSI

O

External SPI, for debug only

52

FMU_CH2_PROT

O

FMU PWM output channel 2

53

VDD_SERVO

I

VDD_Servo, for monitoring servo bus

54

FMU_CH3_PROT

O

FMU PWM output channel 3

55

VDD_BRICK_VALID

I

Main power valid signal

56

FMU_CH4_PROT

O

FMU PWM output channel 4

57

VDD_BACKUP_VALID

I

Backup power valid signal

58

FMU_CH5_PROT

O

FMU PWM output channel 5

59

VBUS_VALID

I

USB bus valid signal

60

FMU_CH6_PROT

O

FMU PWM output channel 6

61

VDD_5V_IN_PROT

I

Main power (5V) into FMU from power selection

62

PPM_SBUS_PROT

I

PPM / S.Bus signal input

63

VDD_5V_IN_PROT

I

Main power (5V) into FMU from power selection

64

S.BUS_OUT

O

S.Bus signal output

65

IO_VDD_5V5

O

IO VDD 5.5 V

66

IO_CH8_PROT

O

I/O PWM output channel 8

67

SPI_EXT_MISO

I

External SPI, for debug only

68

IO_CH7_PROT

O

I/O PWM output channel 7

69

IO_SWDIO

I/O

I/O serial wire debug

70

IO_CH6_PROT

O

I/O PWM output channel 6

71

IO_SWCLK

O

I/O serial wire debug clock

72

IO_CH5_PROT

O

I/O PWM output channel 5

73

SPI_EXT_SCK

O

External SPI, for debug only

74

IO_CH4_PROT

O

I/O PWM output channel 4

75

IO_!RESET

I

I/O reset pin

76

IO_CH3_PROT

O

I/O PWM output channel 3

77

CAN_L_1

I/O

FMU CAN bus Low signal driver

78

IO_CH2_PROT

O

I/O PWM output channel 2

79

CAN_H_1

I/O

FMU CAN bus High signal driver

80

IO_CH1_PROT

O

I/O PWM output channel 1

Serial Ports Parameter and power distribution

SERIAL 1 / UART 1 | Connector: TELEM1

Pin #

Name

Direction

Voltage

Wire Color

Caption

1

VCC_5V

OUT

5 V

RED/GRAY

VCC

2

SERIAL_1_TX

OUT

3.3 V - 5.0 V TTL

YELLOW/BLACK

UART 1 TX (Transmit Data)

3

SERIAL_1_RX

IN

3.3 V - 5.0 V TTL

GREEN/BLACK

UART 1 RX (Receive Data)

4

SERIAL_1_CTS (TX)

OUT

3.3 V - 5.0 V TTL

GRAY/BLACK

UART 1 CTS (Clear To Send)

5

SERIAL_1_RTS (RX)

IN

3.3 V - 5.0 V TTL

GRAY/BLACK

UART 1 RTS (Request To Send)

6

GND

GND

BLACK

GND

SERIAL 2 / UART 2 | Connector: TELEM2

Pin #

Name

Direction

Voltage

Wire Color

Caption

1

VCC_5V

OUT

5 V

RED/GRAY

VCC

2

SERIAL_2_TX

OUT

3.3 V - 5.0 V TTL

YELLOW/BLACK

UART 2 TX (Transmit Data)

3

SERIAL_2_RX

IN

3.3 V - 5.0 V TTL

GREEN/BLACK

UART 2 RX (Receive Data)

4

SERIAL_2_CTS (TX)

OUT

3.3 V - 5.0 V TTL

GRAY/BLACK

UART 2 CTS (Clear To Send)

5

SERIAL_2_RTS (RX)

IN

3.3 V - 5.0 V TTL

GRAY/BLACK

UART 2 RTS (Request To Send)

6

GND

GND

BLACK

GND

SERIAL 3 / UART 3 (GPS) / I2C 1 | Connector: GPS1

Pin #

Name

Direction

Voltage

Wire Color

Caption

1

VCC_5V

IN

5 V

RED

VCC Power Supply To GPS From AP

3

SERIAL_3_TX

OUT

3.3 V - 5.0 V TTL

BLACK

UART 3 TX (Transmit Data)

2

SERIAL_3_RX

IN

3.3 V - 5.0 V TTL

BLACK

UART 3 RX (Receive Data)

4

I2C_1_SCL

IN

3.3 V

BLACK

I2C 1 Clock Signal

5

I2C_1_SDA

IN/OUT

3.3 V

BLACK

I2C 1 Serial Data

6

BUTTON

GND

BLACK

Signal shorted to GND on press

7

IO_LED_SAFET_PROT

GND

BLACK

LED Driver For Safety Button

8

GND

GND

BLACK

GND Connection

SERIAL 4 / UART 4 / I2C 2 | Connector: GPS2

Pin

Name

Direction

Voltage

Wire Color

Caption

1

VCC_5V

OUT

5 V

RED/GRAY

VCC Power Supply To GPS From AP

2

SERIAL_4_TX

OUT

3.3 V - 5.0 V TTL

YELLOW/BLACK

UART 4 TX (Transmit Data)

3

SERIAL_4_RX

IN

3.3 V - 5.0 V TTL

GREEN/BLACK

UART 4 RX (Receive Data)

4

I2C_2_SCL

OUT

3.3 V - 5.0 V

GRAY/BLACK

I2C 2 Clock Signal

5

I2C_2_SDA

IN

3.3 V - 5.0 V

GRAY/BLACK

I2C 2 Serial Data

6

GND

GND

BLACK

GND

SERIAL 5 / UART 5 (Debug Console) / S.Bus OUT | Connector: CONS SBUSo

Pin #

Name

Direction

Voltage

Caption

1 SBUSo

S.Bus_Out

OUT

S.Bus Signal Output

2 CONS

SERIAL_5_TX

OUT

3.3 V - 5.0 V TTL

UART 5 TX (Transmit Data)

3 SBUSo

VDD_SERVO

OUT

SERVO

4 CONS

SERIAL_5_RX

3.3 V - 5.0 V TTL

UART 5 RX (Receive Data)

5 SBUSo

GND

GND

GND

6 CONS

GND

GND

GND

Buzzer | Connector: BUZZER

Pin #

Name

Direction

Voltage

Wire Color

Caption

1

BUZZER

OUT

Battery voltage

GRAY/BLACK

VBAT (8.4 - 42 V)

2

GND

GND

BLACK

GND Connection

I2C 2 | Connector: I2C 2

Pin

Name

Direction

Voltage

Wire Color

Caption

1

VCC_5V

OUT

+5 V

RED/GRAY

Power supply

2

SCL

IN/OUT

+3.3 V (PULLUPS)

BLUE/BLACK

SCL, 5 V level, pull-up on AP

3

SDA

IN/OUT

+3.3 V (PULLUPS)

GREEN/BLACK

SDA, 5 V level, pull-up on AP

4

GND

GND

BLACK

GND Connection

Main Power POWER 1 | Connector: POWER1

Pin #

Name

Direction

Voltage

Wire Color

Caption

1

VDD_5V_BRICK

IN

5 V

RED/GRAY

Supply To AP from Power Brick

2

VDD_5V_BRICK

IN

5 V

RED/GRAY

Supply To AP from Power Brick

3

BATT_CURRENT_SENS_PROT

IN

3.3 V

BLACK

Battery Current Connecter

4

BATT_VOLTAGE_SENS_PROT

IN

3.3 V

BLACK

Battery Voltage Connecter

5

GND

GND

BLACK

GND

6

GND

GND

BLACK

GND

Backup Power POWER 2 | Connector: POWER2

Pin #

Name

Direction

Voltage

Wire Color

Caption

1

VDD_5V_BRICK

IN

5 V

RED/GRAY

Supply To AP from Power Brick

2

VDD_5V_BRICK

IN

5 V

RED/GRAY

Supply To AP from Power Brick

3

AUX_BATT_CURRENT_SENS

IN

3.3 V

BLACK

Aux Battery Current Connecter

4

AUX_BATT_VOLTAGE_SENS

IN

3.3 V

BLACK

Aux Battery Voltage Connecter

5

GND

GND

BLACK

GND Connection

6

GND

GND

BLACK

GND

CAN | Connector: CAN2

Pin #

Name

Direction

Voltage

Wire Color

Caption

1

VCC_5V

OUT

5 V

RED/GRAY

VCC Power Supply

2

CAN_H_2

IN/OUT

12 V

YELLOW/BLACK

CAN High

3

CAN_L_2

IN/OUT

12 V

GREEN/BLACK

CAN Low

4

GND

GND

BLACK

GND

IO USART 1 / DSM | Connector: SPKT

Pin #

Name

Direction

Voltage

Caption

1

IO_USART1_RX_SPECTRUM_DSM

IN

IO USART 1 RX, DSM INPUT

2

GND

GND

GND

3

VDD_3V3_Spektrum

OUT

3.3 V

Independent Power Supply

CPPM / S.BUS / SERVO SYSTEM | Connector: RCIN MAIN OUT

Pin #

Name

Direction

Voltage

Caption

S - 1

IO_CH1_PROT

OUT

3.3 V Servo Signal, Servo Rail Power

PWM Signal

S - 2

IO_CH2_PROT

OUT

3.3 V Servo Signal, Servo Rail Power

PWM Signal

S - 3

IO_CH3_PROT

OUT

3.3 V Servo Signal, Servo Rail Power

PWM Signal

S - 4

IO_CH4_PROT

OUT

3.3 V Servo Signal, Servo Rail Power

PWM Signal

S - 5

IO_CH5_PROT

OUT

3.3 V Servo Signal, Servo Rail Power

PWM Signal

S - 6

IO_CH6_PROT

OUT

3.3 V Servo Signal, Servo Rail Power

PWM Signal

S - 7

IO_CH7_PROT

OUT

3.3 V Servo Signal, Servo Rail Power

PWM Signal

S - 8

IO_CH8_PROT

OUT

3.3 V Servo Signal, Servo Rail Power

PWM Signal

S - 9

PPM_SBUS_PROT

IN/OUT

3.3 V / 4.5 V Powered

PPM / S.Bus Signal

PPM S.bus signal and SPKT signal switching

By default, Mini Carrier Board uses PPM and S.bus in RC IN. If you want to switch it to SPKT signals, you need to solder the carrier board as shown below:

The middle solder pad of the left hand side is shorted with 5v pin. Therefore, you need to break their connection on PCB. The middle solder pad of the right hand side is shorted with PPM/S.B, so break their connection on PCB as well.

Solder the 3v3 solder pad with the middle solder pad at left hand side; and solder the SPKT solder pad with the middle solder pad at right hand side. So that RC IN port is compatible with SPKT signal.

Last update: 10th Jan 2019