Product Features
- Hardware design based on PX4-V6 standar.
- Full adaptation of PX4 firmware (also providing a modified branch of 500HZ IMU rostopic).
- future maintenance and hardware updates.
- Hardware features：27mm x 29mm x 9mm
Specifications
- MCU: STM32H743VIH6, 480MHz, 2MB Flash
- IMU: BMI088+BMI088(DUAL)
- Baro: SPL06
- MicroSD Card Slot
- 7x UART
- 8x PWM
- 1x I2C
- 1x SPI
- 1x SWD
- 2x ADC (VBAT, Current)
- USB Type-C
- BEC 5V 2.5A output (for controller, receiver, GPS, optical flow or other devices)
- BEC 12V 2.5A output (for video transmitter, camera)
UART Mapping(Ardupilot)
- SERIAL0 -> USB
- SERIAL1 -> UART2
- SERIAL2 -> UART4
- SERIAL3 -> UART1 (GPS)
- SERIAL4 -> UART3 (DJI-O3)
- SERIAL5 -> UART7 (ESC Telemetry)
- SERIAL6 -> UART5 (RCIN)
- SERIAL7 -> UART8
UART Mapping(PX4)
- TELEM1 -> UART2
- TELEM2 -> UART4
- TELEM3 -> UART7 (ESC Telemetry)
- SERIAL4 -> UART8
- GPS1 -> UART1
- GPS2 -> UART3
- Radio Controller -> UART5 (RCIN)
RC Input
The default RC input port supports SBUS and CRSF protocol.
Set SERIAL6_PROTOCOL=23 on Ardupilot or set RC_INPUT_PROTO = Auto on PX4.
VTX Support
The SH1.0-6P connector supports a DJI O3 Air Unit connection. Pin 1 of the connector is 12v so be careful not to connect this to a peripheral requiring 5v.
PWM Output
The NxtPX4v2 supports up to 8 PWM outputs. Channels 1-8 support DShot.
Battery Monitoring
The board has a internal voltage sensor and connections on the ESC connector for an external current sensor input.
Compass
The NxtPX4v2 does not have a built-in compass, but you can attach an external compass using I2C on the SDA and SCL connector.
Physical
- Mounting: 20 x 20mm, Φ3mm
- Dimensions: 27 x 32 x 8 mm
- Weight: 6.5g
- 3D Model(stp)
Firmware
HKUST-Aerial-Robotics/NxtPX4: Mini PX4 for UAV Group (github.com)
Real flight test
The actual flight video is at the following link:
https://www.bilibili.com/video/BV1Kc411s7zb/?vd_source=47a0b62670644cf403fc3202c1cbd094
Electronic Speed Controller (Optional Stack):
Specifications:
- Input Voltage Range: 2-6S
- Maximum Continuous Working Current: 30A
- Current Sensor: Yes
- ESC Firmware: BlueJay 48K
- Firmware Version: v0.19.2
- Control Signal Support: DShot150/300/600
- Supports Bidirectional Dshot, Speed Feedback
- Fixed Mounting Holes:
- M3-20*20mm
Package List
NxtPX4v2 Flight Controller *1
Electronic Speed Controller *1 (Optional in Stack)
TF Card (4G) *1
SH1.0-4P cable 150mm *1
SH1.0-6P cable 150mm *1
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