Features: This flight controller is a perfect fit for Gofilm 20. It's an all - in - one flight control with an integrated ELRS receiver. It supports 2S - 4S batteries, offering great flexibility. Specifications: It has an STM32F405RGT6 MCU, an ICM42688 gyro and IMU, a BMP280 barometer, and an ELRS V3.0 UART ExpressLRS receiver. The 20A 4 - IN - 1 ESC provides sufficient power. It comes with an 8MB blackbox. It can support 2 - 4S Lipo/Lihv power sources. The mounting hole distance is 25.5×25.5mm, and the firmware target is CADDXF4_AIO_ELRS.

Using this CADDX F4 AIO ELRS Flight Controller is easy. First, make sure your battery is within the 2S - 4S range. Then, connect it properly to your Gofilm 20 according to the wiring diagram. When flying, keep an eye on the power level to avoid sudden power - off. For maintenance, keep it in a dry and clean place. If you notice any performance issues, check the firmware and update it if necessary. Always handle it gently to prevent damage to the internal components.