Redfox A3 35A/45A ESC AIO Flight Controller for 2 to 3.5-inch drones
Introducing the Redfox A3 series flight controller, a new choice in lightweight FPV drones brought to you by the Sub250 team.
Designed specifically for 2 to 3.5-inch drones, it integrates the powerful computational capabilities of the F722 MCU to ensure exceptional flight performance.
Featuring an independently designed Type-C adapter board, it can be conveniently placed at any location on the frame for quick parameter adjustments.
Onboard DJI 6-Pin interface, offering direct connectivity to digital video transmission systems.
Equipped with four sets of UART ports, providing more possibilities for installation and upgrades. It also comes with a 5V@2.5A BEC to meet the increasing demand for additional peripherals.
Sub250 is committed to combining “lightweight” and “high performance” to bring a brand new experience to the racing drone field. The Redfox A3 series flight controller helps you explore the perfect fusion of lightweight design and exceptional performance.
Designed specifically for 2 to 3.5-inch drones, it integrates the powerful computational capabilities of the F722 MCU to ensure exceptional flight performance.
Featuring an independently designed Type-C adapter board, it can be conveniently placed at any location on the frame for quick parameter adjustments.
Onboard DJI 6-Pin interface, offering direct connectivity to digital video transmission systems.
Equipped with four sets of UART ports, providing more possibilities for installation and upgrades. It also comes with a 5V@2.5A BEC to meet the increasing demand for additional peripherals.
Sub250 is committed to combining “lightweight” and “high performance” to bring a brand new experience to the racing drone field. The Redfox A3 series flight controller helps you explore the perfect fusion of lightweight design and exceptional performance.
FC Specification：
MCU: STM32F722
IMU: ICM42688-P
Firmware Target Name: SUB250REDFOX722AIO
OSD Chip: AT7456E
Barometer: Built-in
UART: 6 sets (UART1, UART2, UART3 for Digital VTX SBUS receiver, UART4, UART5 for ESC telemetry, UART6)
External Buzzer: Supported
External LED: Supported
6-Pin DJI Air Unit Plug: Supported
USB Port Type: SH1.0 5PIN to Type-C
BEC Output: 5V 2.5A
Mounting: 25.5mm x 25.5mm, φ3mm hole reduces to φ2mm with Anti-vibration Silicone Grommet
Dimension: 33.5mm(L) x 33.5mm(W) x 6.45mm(H) ,1.6mm Board Thickness
Weight：8.7g
ESC Specification:
Continuous Current: 35A/45A
Burst Current: 45(10s)/55A(10s)
Power Input: 2~6S (LiPo Battery)
ESC Protocol: Dshot300, Dshot600
Current Sensor: Supported
ESC Firmware: BLHeli_32
Features：
- STM32F722 MCU, powerful computing performance with high-speed and real-time response.
- Reliable and durable BLHeli_32 35A/45A ESC supports up to 128khz PWM frequency.
- Independently designed DJI 6PIN interface, directly connected to DJI digital video transmission system.
- TypeC adapter board with boot button, SH1.0 5PIN direct plug, meeting the placement needs of various kinds of small frames.
- 4 sets of complete UART ports provide more possibilities for installation and expansion, and the optimized pad design makes welding easier.
- 5V@2.5A BEC meets the demands of more peripheral devices.
- Supports functions such as OSD parameter adjustment, GPS, LED, buzzer, etc.
- Ultra-light weight of 8.7g, 25.5mmx25.5mm M3 mounting holes, suitable for most frames on the market.
Packaging：
1 x Redfox A3 35A/45A AIO
1 x External USB-C Port Module (Wire Length:150mm)
1 x 6Pin DJI Air Unit Connecting Cable
5 x M2*6.5 Black Anti-vibration Silicone Grommets（4 x Pre-installed）
5 x M2*6.5 Red Anti-vibration Silicone Grommets
5 x M2x10 Screws
8 x M2 Nylon Nuts
1 x 35V 470uf Capacitor
1 x XT30 16AWG 70mm Power Cable
1 x Manual & Support Card
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