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AVION F4 flight controller, front view

Flight controller

AVION F4

৳2,499In stock

An STM32F411 flight controller for freestyle, long-range and autonomous builds, on a four-layer board made in Bangladesh.

  • Delivered anywhere in Bangladesh by Steadfast, usually in 24 to 48 hours.
  • Cash on delivery. We call to confirm before dispatch.
  • 6-month warranty against manufacturing defects.
Processor
STM32F411CEU6
Gyro
MPU6500
Barometer
BMP280
Input
2S to 6S
UARTs
3
Firmware
Betaflight, INAV

What it does

  • Set up from your phone

    Configure the board and tune PIDs with the SpeedyBee app.

  • Stable in every mode

    Smooth, locked-in flight in Acro, Angle and Horizon modes.

  • Altitude hold

    The BMP280 barometer sits under foam, so pressure readings stay clean and altitude hold stays steady.

  • GPS navigation

    Add a GPS for position hold, return to home and waypoint missions with INAV.

  • Optical flow

    Connect an I²C optical flow sensor to hold position indoors without GPS.

  • Rangefinder

    Add a rangefinder for terrain following and precision landing.

  • Your choice of firmware

    Flash Betaflight for freestyle and racing, or INAV for navigation. Switch any time.

  • Made in Bangladesh

    Bangladesh’s first locally manufactured four-layer flight controller in its class, designed and flight-tested in Dhaka.

Specifications

Processor and sensors

Processor
STM32F411CEU6
Gyro and accelerometer
MPU6500
Barometer
BMP280
IMU vibration damping
Passive

Power and outputs

Input voltage
2S to 6S LiPo
Motor outputs
4, PWM or DShot
5 V outputs
4 pins
Current sensor input
Supported

Interfaces

UART
3
I²C
1
RSSI input
Supported
LED strip
WS2812B

Physical

Dimensions
55 × 25 × 11 mm
Mounting
30.5 × 30.5 mm, 4 mm holes
Circuit board
Four layers

Firmware

Supported
Betaflight, INAV 7
Configure with
Betaflight, INAV Configurator or the SpeedyBee app

INAV 8 and later no longer publish official builds for F411 boards. Use INAV 7 on AVION F4, or ask us for the build we test with.

Set up and support

Wiring, firmware and first-flight checks are in the quick start guide. If you get stuck after that, ask us.

  • Quick start guideMounting, wiring, firmware and first flight
    Open
  • Pinout, manual and config filesDownloads for AVION F4
    Open

Questions

Should I use Betaflight or INAV?

Betaflight for freestyle and racing. INAV if you need GPS position hold, return to home or waypoint missions. You can reflash and switch at any time.

Which receivers work with it?

Any serial receiver, such as ExpressLRS or Crossfire (CRSF), connected to a free UART.

Can I run it on 6S?

Yes. AVION F4 takes 2S to 6S LiPo directly.

Is there a warranty?

Yes, 6 months against manufacturing defects. Crash damage and wiring mistakes aren’t covered. Read the warranty.

How do I pay?

Cash on delivery anywhere in Bangladesh. We call to confirm your order before we send it.

Pair it with

Navigation module

dNavi

Final testing