Airbot Fenix G4 35A AIO
- Specifications
- Wiring Diagrams
- Photos
- Notes
Target:
AIRBOTG4AIO
MCU:
STM32G473CEU6
IMU:
ICM42688P
OSD:
AT7456E
Baro:
DPS310
Flash:
W25Q128JVPQ (16MB)
Measurements:
Size: 35x35mm
Mounting: 25.5x25.5mm
Weight: 10.4g
Other Features
- SD Card Slot: None
- Onboard Receiver: No
- Hardware Inverter: Yes
- Bluetooth: No
- WiFi: No
- Onboard RGB LED: 16x
ESC Specifications
- ESC MCU: QF32MTF4AK8U7
- ESC Firmware: AM32
- ESC Target: F4A_AIO_F421
- Continuous Current: 35A
- Burst Current: 45A
Input/Output
- USB Connector: USB Type-C
- ESC Outputs: 4x
- UARTs: 4x
- I2C: Yes
- SWD: Yes
- SPI: No
- 3.3V Output: No
- 4.5V (VBUS) Output: Yes
- 5V Output: 2A
- 10V Output: 2A
- Current Sensor: Yes
- Analog RSSI Input: No
- LED Strip Output: Yes
- Buzzer Output: Yes
Pads
UARTs
| Name | Label | Notes |
|---|---|---|
| UART 1 | TX1/RX1 | VTX |
| UART 2 | RX2/TX2 | Optional inverter for SBUS/F.Port |
| UART 4 | TX4/RX4 |
Power
| Name | Label | Count | Notes |
|---|---|---|---|
| 5V | 5V | 3x | |
| 10V | 10V | 1x | |
| Battery Voltage | VBAT | 1x |
Analog Video
| Name | Label | Notes |
|---|---|---|
| Video In | CAM | |
| Camera Control | CC | |
| Video Out | VTX |
Buzzer
| Name | Label | Notes |
|---|---|---|
| Buzzer + | BZ+ | |
| Buzzer - | BZ- |
RGB LEDs
| Name | Label | Count | Notes |
|---|---|---|---|
| LED | LED | 1x | |
| LED_EN | 1x | Bridge pads to enable onboard LEDs |
USB Breakout
| Name | Label | Notes |
|---|---|---|
| Ground | GND | |
| USB Power | VBUS | |
| Data - | DN | |
| Data + | DP |
I2C
| Name | Label | Notes |
|---|---|---|
| Clock | SCL | Small pads in the middle of the board |
| Data | SDA |
Connectors
Digital VTX
| Pin | Name | Label |
|---|---|---|
| 1 | 10V | 10V |
| 2 | Ground | GND |
| 3 | UART1 TX | TX1 |
| 4 | UART1 RX | RX1 |
| 5 | Ground | GND |
| 6 | SBUS | TX2 |
info
VTX Connector
The AIO featues a multi-purpose connector for both digital and analog VTXs:
- When both GND pins in the connecor are used, the TX2 pin will be used as an inverted RX pin for SBUS, the connector will function like a regular digital VTX connector following the standard pinout
- When only the first GND pin is used, the TX2 pin will instead output analog video, the connector can be used with analog VTXs
Onboard LEDs
The flight controller has 28 RGB LEDs onboard, connected in paralell to the LED signal connection, and powered from the onboard regulator. Bridging the LED_EN pads will connect the signal line to the LEDs, enabling full control of the LEDs from the flight controller.