iFlight Borg 5S RX ELRS

The iFlight Borg 5S is a flight controller with a built-in 2.4GHz UART ELRS receiver. It is ideal for smaller 2.5–4" drones, racing quads, and all setups where saving weight and space is essential. The Borg 5S features an integrated ceramic antenna to keep dimensions minimal, but also includes an IPEX1 connector for attaching an external antenna when longer range is needed. The board supports power input from 4–8S LiPo batteries.

The heart of the flight controller is an AT32F435RGT7 processor and an ICM42688 gyro. Additional features include a 5V BEC, a switchable 12V BEC for powering video transmitters, an OSD chip for analog video, and 16MB of onboard memory for blackbox logging. For ESC connection, the board uses a non-standard FPC cable connector, but solder pads are also available.