Happymodel X14 ELRS 5-IN-1 AIO flight controller built-in 2.4G UART ELRS V3.0 and OPENVTXHappyModel X14 ELRS Flight Controller Let's be honest, the guts of your 2S whoop have seen better days. Enter the HappyModel X14 ELRS Flight Controller, the AIO board that finally crams a proper brain into a tiny package. This isn't just another F4 board with a new sticker; it's a full STM32G473 upgrade with an integrated 400mW OpenVTX and a buttery smooth 12A Bluejay ESC. If you're building the ultimate 75 85mm toothpick or just reviving a sad,