Built a budget quadcopter for just 57€ (excluding frame and battery), and yes—it actually flies great. I 3D printed the frame, sourced cheap parts, and ended up with a 77g FPV drone that gets around 14 minutes of flight time. Check out the video and full build details inside!

Turns out you can program a dirt-cheap ESP01 module to act like an iBus receiver for a flight controller. I threw together a quick sketch to send random channel data—and yep, Betaflight picked it up! It’s just a prototype, but this could be a fun path toward building a Wi-Fi-based RC setup.