Link Search Menu Expand Document
ModalAI Technical Docs

Flight Core Connectors

Table of contents

  1. Board Connections and Pin-out Specifications
    1. Flight Core Board Top
    2. Flight Core Board Bottom
  2. J1 - VOXL Communications Interface Connector
  3. J2 - Programming and Debug Console
  4. J3 - USB Connector
  5. J4 - UART ESC, UART2/TELEM3
  6. J5 - Telemetry Connector
  7. J6 - VOXL-Power Management Input / Expansion
  8. J7 - 8-Channel PWM Output Connector
  9. J8 - CAN Bus Connector
  10. J9 - PPM RC In
  11. J10 - External GPS & Magnetometer Connector
  12. J11 - MicroSD
  13. J12 - RC input / USART6 Connector
    1. Supported Modules
  14. J13 - I2C Display / I2C2 Bus / Safety Switch Connector

Board Connections and Pin-out Specifications

Flight Core Board Top

Flight Core Top

ConnectorSummary 
J1VOXL Communications Interface Connector (TELEM2) 
J2Programming and Debug Connector 
J3USB Connector 
J4UART ESC, UART2/TELEM3 
J5Telemetry Connector (TELEM1) 
J6VOXL-Power Management Input / Expansion 
J78-Channel PWM Output Connector 
J8CAN Bus Connector 
J9PPM RC In 
J10External GPS & Magnetometer Connector 
J12RC Input, Spektrum/SBus/UART Connector 
J13I2C Display (Spare Sensor Connector) / Safety Button Input 

Flight Core Board Bottom

Flight Core Core Bottom

Top

J1 - VOXL Communications Interface Connector

Connector: 6 Position HIROSE DF13, Vertical, DF13-6P-1.25V(50)

Notes: UART lines are 5V inputs (level shifted to 3.3V by the Flight Core)

Pin #Signal Name
15VDC (input or output if supplied at another pin)
2UART_4W_RX_5V
3UART_4W_TX_5V
4UART_4W_RTS_5V
5GND
6UART_4W_CTS_5V

Top

J2 - Programming and Debug Console

Connector: 8 Position, Vertical, BM08B-SRSS-TB(LF)(SN)

Note: used for PX4 debug console, can be used for STM32 FW update

Pin #Signal Name
1VREG_3V3
2UART_2W_DEBUG_TX
3UART_2W_DEBUG_RX
4SWDIO
5SWCLK
6GND
7!RESET
8VPP_STM

Top

J3 - USB Connector

NOTE: This connector does not provide system power

Connector: 4 Position JST GH, Vertical, BM04B-GHS-TBT

Pin #Signal Name
1VBUS_IN
2DATA_M
3DATA_P
4GND

Top

J4 - UART ESC, UART2/TELEM3

Connector: 8 Position HIROSE DF13, Vertical, DF13-8P-1.25V(50)

Pin #Signal Name
15VDC (other pins are 3.3V, input or output if supplied at another pin)
2UART_4W_RX_3V3
3UART_4W_TX_3V3
4UART_4W_RTS_3V3
5GND
6UART_4W_CTS_3V3
7GPIO (MSS Status Output)
8GPIO (MSS Status Input)

Top

J5 - Telemetry Connector

Connector: 6 Position JST GH, Vertical, MB06B-GHS-TBT

Pin #Signal Name
15VDC (other pins 3.3V, input or output if supplied at another pin)
2UART_4W_TX_3V3
3UART_4W_RX_3V3
4UART_4W_CTS_3V3
5UART_4W_RTS_3V3
6GND

Top

J6 - VOXL-Power Management Input / Expansion

Connector: 6 Position JST GH, Vertical, BM06B-GHS-TBT

Pin #Signal Name
15VDC (other pins 3.3V, input or output if supplied at another pin)
2UART_2W_TX_3V3
3UART_2W_RX_3V3
4EXP_I2C_SCL
5EXP_I2C_SDA
6GND

Top

J7 - 8-Channel PWM Output Connector

Connector: 10 Position JST GH, Vertical, BM10B-GHS-TBT

Notes: 5V is for Ref Only

Pin #Signal Name
15VDC (other pins are 3.3V, input or output if supplied at another pin)
2PWM_CH1
3PWM_CH2
4PWM_CH3
5PWM_CH4
6PWM_CH5
7PWM_CH6
8PWM_CH7
9PWM_CH8
10GND

J8 - CAN Bus Connector

Connector: 4 Position JST GH, Vertical, BM04B-GHS-TBT

Pin #Signal Name
15VDC
2CANH*
3CANL*
4GND

*CAN signals are compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5

Top

J9 - PPM RC In

Connector: 3 Position JST GH, Vertical, BM03B-GHS-TBT

Note: This JST connector is reversed when compared to VOXL Flight, pinouts are still the same

Pin #Signal Name
15VDC (other pins 3.3V, input or output if supplied at another pin)
2PPM_IN
3GND

Top

J10 - External GPS & Magnetometer Connector

Connector: 6 Position JST GH, Vertical, BM06B-GHS-TBT

Pin #Signal Name
15VDC (other pins 3.3V, input or output if supplied at another pin)
2EXT_GPS_UART_2W_TX
3EXT_GPS_UART_2W_RX
4EXT_GPS_I2C_SCL
5EXT_GPS_I2C_SDA
6GND

Top

J11 - MicroSD

MicroSD slot. Information about supported cards is here: https://dev.px4.io/v1.9.0/en/log/logging.html#sd-cards

Top

J12 - RC input / USART6 Connector

Connector: 4 Position JST GH, Vertical, BM04B-GHS-TBT

Pin #Signal Name
1VREG_3V3 (Spektrum Power)
2USART6_TX
3SPEKTRUM RX (3.3V), SBus RX (3.3V), USART6_RX
4GND

Supported Modules

Top

J13 - I2C Display / I2C2 Bus / Safety Switch Connector

Connector: 5 Position, Vertical, BM05B-SRSS-TB(LF)(SN)

Pin #Signal Name
1VREG_3V3
2GND
3I2C2_SDA
4I2C2_SCL
5Safety Switch In (switch should pull high to 3.3V to enable)

Top