SpeedyBee F745 35A BLHeli_S AIO Flight Controller, 25.5x25.5

The SpeedyBee F745 AIO combines an STM32F745 flight controller and a 35A BLHeli_S 4-in-1 ESC on one board with a 25.5x25.5mm mounting pattern. It suits 3-6S toothpicks, 3- to 4-inch freestyle quads and cinewhoops where a separate stack will not fit, and it can be configured wirelessly from the SpeedyBee app.

Key features

• MPU6000 gyro and BMP280 barometer, with 8MB blackbox flash.
• Bluetooth and Wi-Fi configuration through the SpeedyBee app, so settings can be changed at the field without a laptop.
• Four full UARTs plus I2C for receiver, GPS and VTX, with DJI air unit pads and a 6-pin cable included.
• 35A per motor on 3-6S, with a built-in current sensor (scale 256).
• External USB-C module lets you place the port where it stays reachable in a tight frame.

Specifications

• MCU: STM32F745
• Gyro: MPU6000
• Barometer: BMP280
• Blackbox: 8MB
• UARTs: 4
• BEC: 5V, 2.5A total
• ESC: 4 x 35A continuous, BLHeli_S
• Input voltage: 3-6S LiPo
• Mounting: 25.5 x 25.5mm, 3mm holes (M2 with grommets)
• Board size: 36.5 x 36.5 x 7mm
• Weight: about 10g

In the box: the AIO board, a 35V 470µF capacitor, a 7cm XT30 power lead, a 6-pin DJI air unit cable, the external USB-C module, and an M2 soft-mount set of screws, anti-vibration grommets, O-rings and nylon nuts. The board is larger outside its mounting holes than many 25.5mm AIOs, so confirm frame clearance first.