pixhawk4 接线图
USB port
| Pin | Signal | Volt |
| 1(red) | VBUS | +5V |
| 2(black) | DM | +3.3V |
| 3(black) | DP | +3.3V |
| 4(black) | GND | GND |
POWER1 POWER2 port
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2(black) | VCC | +5V |
| 3(black) | CURRENT | +3.3V |
| 4(black) | VOLTAGE | +3.3V |
| 5(black) | GND | GND |
| 6(black) | GND | GND |
TELEM1, TELEM2 ports
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2(black) | TX(out) | +3.3V |
| 3(black) | RX(in) | +3.3V |
| 4(black) | CTS(in) | +3.3V |
| 5(black) | RTS(out) | +3.3V |
| 6(black) | GND | GND |
UART & I2C B port
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2(black) | TX(out) | +3.3V |
| 3(black) | RX(in) | +3.3V |
| 4(black) | SCL2 | +3.3V |
| 5(black) | SDA2 | +3.3V |
| 6(black) | GND | GND |
-
A spare port for connecting sensors supporting serial communication or I2C e.g. a second GPS module can be connected here.
-
用于连接支持串行通信或I2C的传感器的备用端口，例如，可以在此处连接第二个GPS模块。
CAN1, CAN2 ports
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2(black) | CANH | +3.3V |
| 3(black) | CANL | +3.3V |
| 4(black) | GND | GND |
DSM RC port
| Pin | Signal | Volt |
| 1(null) | VDD_5V_SBUS_RC | +5V |
| 2(yellow) | SBUS * | +3.3V |
| 3(null) | RSSI * | +3.3V |
| 4(red) | VDD_3v3_SPEKTRUM | +3.3V |
| 5(black) | GND | GND |
-
Connect SBUS or DSM/Spektrum receiver’s signal wire connect here.
-
Sends the RC signal strength info to autopilot.
-
将SBU或DSM/Spektrum接收器的信号线连接到此处。
-
向自动驾驶仪发送RC信号强度信息。
SBUS RC port
| Pin | Signal | Volt |
| 1(red) | VDD_5V_SBUS_RC | +5V |
| 2(yellow) | SBUS | +3.3V |
| 3(null) | RSSI | +3.3V |
| 4(null) | VDD_3V3_SPEKTRUM | +3.3V |
| 5(black) | GND | GND |
I2C A port
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2(black) | SCL4 | +3.3V |
| 3(black) | SDA4 | +3.3V |
| 4(black) | GND | GND |
CAP & ADC IN port
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2 black) | FMU_CAP1 | +3.3V |
| 3(black) | FMU_CAP2 | +3.3V |
| 4(black) | FMU_CAP3 | +3.3V |
| 5(black) | TIM5_SPARE_4 | +3.3V |
| 6(black) | ADC1_SPARE_1 | +3.3V* |
| 7(black) | ADC1_SPARE_2 | +6.6V* |
| 8(black) | GND | GND |
- WARNING: Sensors connected to this pin should not send a signal exceeding this voltage!
- 警告：连接到此引脚的传感器不应发送超过此电压的信号！
SBUS OUTport
| Pin | Signal | Volt |
| 1(red) | ||
| 2(yellow) | SBUS_OUT | +3.3V |
| 3(black) | GND | GND |
PPM RC port
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2(yellow) | PPM | +3.3V |
| 3(black) | GND | GND |
GPS MODULE port
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2 black) | TX(out) | +3.3V |
| 3(black) | RX(in) | +3.3V |
| 4(black) | SCL1 | +3.3V |
| 5(black) | SDA1 | +3.3V |
| 6(black) | SAFETY_SWITCH | +3.3V |
| 7(black) | SAFETY_SWITCH_LED | +3.3V |
| 8(black) | VDD_3V3 | +3.3V |
| 9(black) | BUZZER- | 0V/5V |
| 10(black) | GND | GND |
SPI port
| Pin | Signal | Volt |
| 1(red) | VCC | +5V |
| 2 (black) | SCK | +3.3V |
| 3(black) | MISO | +3.3V |
| 4(black) | MOSI | +3.3V |
| 5(black) | CS1 | +3.3V |
| 6(black) | CS2 | +3.3V |
| 7(black) | GND | GND |
I/O PWM OUT port
| Pin | Signal | Volt |
| 1(red) | VDD_SERVO | |
| 2 black) | IO_CH1 | +3.3V |
| 3(black) | IO_CH2 | +3.3V |
| 4(black) | IO_CH3 | +3.3V |
| 5(black) | IO_CH4 | +3.3V |
| 6(black) | IO_CH5 | +3.3V |
| 7(black) | IO_CH6 | +3.3V |
| 8(black) | IO_CH7 | +3.3V |
| 9(black) | IO_CH8 | +3.3V |
| 10(black) | GND | GND |
FMU PWM OUT port
| Pin | Signal | Volt |
| 1(red) | VDD_SERVO | |
| 2 black) | FMU_CH1 | +3.3V |
| 3(black) | FMU_CH2 | +3.3V |
| 4(black) | FMU_CH3 | +3.3V |
| 5(black) | FMU_CH4 | +3.3V |
| 6(black) | FMU_CH5 | +3.3V |
| 7(black) | FMU_CH6 | +3.3V |
| 8(black) | FMU_CH7 | +3.3V |
| 9(black) | FMU_CH8 | +3.3V |
| 10(black) | GND | GND |
IO DEBUG PORT
| Pin | Signal | Volt |
| 1(red) | VT | +3.3V |
| 2(black) | TX | +3.3V |
| 3(black) | NC | |
| 4(black) | SWDIO | +3.3V |
| 5(black) | SWCLK | +3.3V |
| 6(black) | GND | GND |
FMU DEBUG port
| Pin | Signal | Volt |
| 1(red) | VT | +3.3V |
| 2(black) | TX | +3.3V |
| 3(black) | RX | +3.3V |
| 4(black) | SWDIO | +3.3V |
| 5(black) | SWCLK | +3.3V |
| 6(black) | GND | GND |