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NxtPX4-Hardware v1.2.0 release

1683192528513

1683192557620

1683193401614

Hardware design for NxPX4

NxtPx4 is designed by HKUST UAV-Group and tested and maitened with HKU Mars-Lab and SYSU Hi-Lab

NxtPx4_Pro version () has 9v 2.5A and 5V 3A peak power output

NxtPx4 version has 5V 3A power output

File tree

NxPx4_Pro/xxx_Vx.x.x_Release:KICAD project

  • xxxxxxx_production: manufact files for JLC
  • project_lib: Footprint lib and Symble lib for project

Hardware design information

27mm x 29mm x 8mm

MCU&Sensors&Peripher Device

  • MCU STM32H743VIH
  • IMU
    IMU SPI BUS
    ICM20649 SPI1
    ICM-42688-P SPI2
    BMI088 SPI3
  • Baro BMP388
  • TF-card: SDMMC1
  • External Flash: QSPI

Function support

  • 6-CH Dshot 600 support
  • UART tty-port serial-name mapping
    UART TTY SerialName Suggest Funcion
    USART1 /dev/ttyS0 SERIAL_GPS1 AUX
    USART2 /dev/ttyS1 SERIAL_GPS2 AUX
    USART3 /dev/ttyS2 SERIAL_TEL1 ESC report
    UART4 /dev/ttyS3 SERIAL_TEL2 Connect with offboard computer
    UART5 /dev/ttyS4 SERIAL_RC Receiver
    UART7 /dev/ttyS5 SERIAL_TEL3 AUX
  • I2C2|SPI4 available
  • Aux 2 PWM channel available (Heater & RGB & Buzzer control signal)
  • Buzzer- available
  • Aux 2 GPIO Available

for more information please reffer to /STM32H743VI_Pin_Out/STM32H743xxx_Pin_out.xlsx

Caution!!!!!!!!

V1.2.0

V1.0.0

In the v1.0.1 design, the original concept was to create an unusual ESC connector in order to prompt users to notice the pinout sequence. However, in practice, the placement of the Rx pin in close proximity to the Vbat pin resulted in MCU damage during power on/off if the cable was not tightly installed (causing a high voltage spark). Realizing this issue, the v1.1.0 design changed the ESC pinout order to address this problem.

If you are using v1.0.1 of the NxtPX4 flight controller (which can be found at the back of the PCB), it is important to pay attention to your connection with the ESC. Specifically, it is recommended that you do not disconnect or connect the NxtPX4 while the ESC is already powered on, as this can cause damage to the flight controller. v1.0.1 Design(v1.0.1 Design)

1679546185343

(v1.1.0)

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Hardware design for NxPX4

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