# BetaFPV Beta75X 2S Brushless Whoop :::warning This frame has been [discontinued](../flight_controller/autopilot_experimental.md) and is no longer commercially available. ::: The [BetaFPV Beta75X](https://betafpv.com/products/beta75x-2s-whoop-quadcopter) is a very small quadrotor that can be flown indoors or outdoors, FPV or line-of-sight. ![BetaFPV Beta75X](../../assets/hardware/betafpv_beta75x.jpg) ## 구매처 The _Beta75X_ can be bought from a number of vendors, including: - [GetFPV](https://www.getfpv.com/beta75x-2s-brushless-whoop-micro-quadcopter-xt30-frsky.html) - [Amazon](https://www.amazon.com/BETAFPV-Beta75X-Brushless-Quadcopter-Smartaudio/dp/B07H86XSPW) 추가로 다음과 같은 것들이 필요합니다. - An RC transmitter. _Beta75X_ can ship with a number of receivers. PX4 is compatible with all of them, but make sure to select the version that matches your transmitter. - LiPo battery charger (vehicle ships with one battery, but you may want spares). - FPV goggles if you want to fly FPV. There are many compatible options, including these ones from [Fatshark](https://www.fatshark.com/product-page/dominator-v3). ::: info FPV support is completely independent of PX4/flight controller. ::: ## Flashing PX4 Bootloader The _Beta75X_ comes preinstalled with Betaflight. Before loading PX4 firmware you must first install the PX4 bootloader. Instructions for installing the bootloader can be found in the [Omnibus F4](../flight_controller/omnibus_f4_sd.md#bootloader) topic (this is the flight controller board on the _Beta75X_). :::tip You can always [reinstall Betaflight](../advanced_config/bootloader_update_from_betaflight.md#reinstall-betaflight) later if you want! ::: ## Installation/Configuration Once the bootloader is installed, you should be able to connect the vehicle to _QGroundControl_ via a USB cable. :::info At time of writing _Omnibus F4_ is supported on the QGroundControl _Daily Build_, and prebuilt firmware is provided for the master branch only (stable releases are not yet available). ::: To install and configure PX4: - [Load PX4 Firmware](../config/firmware.md). - [Set the Airframe](../config/airframe.md) to _BetaFPV Beta75X 2S Brushless Whoop_. - Continue with [basic configuration](../config/index.md), including sensor calibration and radio setup. ## 비디오