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EMAX Skyline F3+OSD Flight Controller (Acro)

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Quick Overview

F3 Flight Controller WITH Builtin OSD

EMAX Skyline F3+OSD Flight Controller (Acro)

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Skyline F3 Flight Controller + on board OSD to simplify your FPV build. No need for unreliable external OSD modules anymore. With a simple flick of a switch, the OSD can easily and quickly be turned ON or OFF. The OSD is integrated into the Flight Controller so setting up is simple.

Connect an fpv camera and Video Tx directly to the Skyline F3 + OSD board. With MW_OSD pre installed on the Skyline F3+OSD, the pilot can change PID on the spot through OSD without having to connect to a computer. Simply use the transmitter’s stick commands and follow the OSD menu.


  • Run Cleanflight, Betaflight, or Baseflight
  • Wire-to-Board micro connectors.
  • Built-in gyro/accelerometer, magnetometer (Advanced Version also includes barometer and magnetometer)
  • Blackbox ready with 2MB of storable data.
  • Thin and ultra compact for clean/tight builds.
  • Uses top quality electronic components and high precision SMT.
  • STM32 F303 Processor.
  • Fly in Manual Mode, Angle Mode, Horizon Mode, Head-Holding Mode, Head-free Mode, and Altitude-Hold Mode (Altitude-Hold Mode is available in Advanced version).
  • Supports Quad-,Tri-,Hex, Octo-, various multirotors.
  • Flexible RC Input: PPM, Non-Inverted SBUS, PWM.
  • Flash to latest firmware through the Micro-USB (**NOTE: Please be sure to leave OSD switch OFF when using Micro-USB).
  • GPS Hold / Return-To-Home Feature supported (GPS module needed).


Specifications (Acro Version)

The hardware was designed by the lead developer of Cleanflight to be more capable than the previous-generation STM32F1-based boards after hearing feedback from the Cleanflight users, contributors and top-pilots.

  • 35mm x 35 mm x 5 mm (30.5mm Mounting)
  • Weight: 4.9g  (W/O wires)
  • Acro version is without Compass and Barometer Sensors
  • STM32F303 CPU, 72Mhz inc FPU



  • 1x SKYLINE F3+OSD (Acro)
  • 2x RC breakout cable
  • 1x vBat cable
  • 1x buzzer cable
  • 2x UART cables
  • 4x Nylon Standoffs and nuts
  • 1x Header Pin Assortment (Straight and 90 Degree)


Note: SKYLINE F3+OSD hardware is compatible with SPRACINGF3 firmware, including cleanflight, baseflight, betaflight, raceflight, etc. Below are the links to the source codes:

SKYLINE F3+OSD is loaded with baseflight and Baseflight-Configurator GUI. This manual is a baseflight Setup Tuning Guide for SKYLINE32.

If you are using cleanflight firmware, please refer to the below link to download and install cleanflight Configurator:


Note: with firmware and configuration based on “MultiWii” software, the processor used is not Atmel AVR, and can not be compiled via Arduino or other AVR tools.  

Below is some information about STM32 development:


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The store will be shutdown until 12/26/2017.
Any order placed will be shipped no later than 12/26/2017.