The new Helifar 4-in-1 ESC with BLHELI-32 firmware natively supports ESC telemetry function & DSHOT 1200.
BAYANGTOYS X22 Brushless Dual GPS WIFI FPV with 3-Axis Gimbal 1080P Quadcopter under $250Read more "Bayangtoys X22: GPS and a 3D Gimbal for under $250"
MANA285 a great ready to fly clone of Vortex 285 that runs on open source software and is an ideal platform for long range.Read more "M285: Affordable InmersionRC Vortex quadcopter clone running Open Source"
STorM32: Open Source 3D Gimbal, affordable aerial cinematographer’s tool takes you places you never dreamt of for a fraction of the price of proprietary products.Read more "STorM32: Open Source 3D Gimbal"
Inexpensive, durable, hackable GPS drone with autonomous return to home and auto-land featureRead more "Bayangtoys X16: Inexpensive, durable, hackable GPS drone."
A compilation of those few drones to which you can install a firmware based on open source. Whether you’re new to quadcopters and looking for something you can put an alternative firmware to play around with or an aspiring drone programmer looking for a developer platform, cheap quadcopters are a great way to start familiarizing with open source in aerial vehicles.Read more "Best Quadcopters with open source firmware."
Microsciky 32 board lightweight built-in brushed ESC, DSM2 and open-source Cleanflight support.Read more "Micro Scisky: The 32bits Open Source Brushed Flight Controller"