Search Builds
Builds
Featured
Latest
Guides
Parts
Featured Parts
Frames
Flight Controllers
ESCs
Motors
Propellers
FPV Cameras
FPV Transmitters
Antennas
Receivers
Batteries
Power Distribution
3D Prints
Hardware
Misc Parts
Gear
Radios
Goggles
HD Cameras
Video Receivers
Radio Modules
Battery Chargers
Soldering Irons
Tools
Backpacks
Accessories
Misc Supplies
Community
Activity Stream
Latest Discussions
Leaderboard
About
Privacy Policy
Contact
My Builds
My Mockups
Account
Following
Builds I've Liked
Sign out
Toggle navigation
Builds
Featured
Latest
Guides
Parts
Featured Parts
Frames
Flight Controllers
ESCs
Motors
Propellers
FPV Cameras
FPV Transmitters
Antennas
Receivers
Batteries
Power Distribution
3D Prints
Hardware
Misc Parts
Community
Discussions
Leaderboard
YouTube
TikTok
Facebook
Instagram
Sign in
Browse Parts
Flight Controllers
Happymodel ELRSF4 2G4 V3.1 V3.3 AIO 5in1 Flight controller built-in SPI 2.4GHz ELRS RX
1
complete builds
0
mockups
Flight Controller
See Site
Aug 02, 2025
Where to Buy