This is the Hobbywing 31001001 XRotor Flight Controller F4, (Nano), for FPV Drones HWI31001001 from Hobbywing.
STM32 F405 MCU allows the FC to run the PID looptime and gyro with higher frequency.
SPI Sensor MPU6000 includes an accelerometer and a gyro.
Onboard OSD microchip, supports the DMA mode and allows users to adjust its parameters via the Betaflight software. (Note: the OSD is controlled by the F4 MCU.)
The FC which supports Betaflight firmware & allows parameter adjustment via Betaflight software is more applicable to FPV race.
TF-card which can record and save more flight/black box data allows users to adjust the setup of their aircraft easily.
Compatible with various receivers like SBUS, SUMH, SUMD, SPEKTRUM1024/2048, XBUS, PPM and etc.
LED strip signal output port allows users to adjust the color and flash mode of the LED strip via the FC.
Volt and Amp monitoring port allows users to check the battery voltage (VBAT port ) and current (CRT port) (extra current meter is needed).
Buzzer output port allows users to connect external buzzer to the FC for warning or informing the flight status of the aircraft.
Micro USB port allows users to connect the FC to a PC to flash firmware and adjust parameters.