The DYS F4 Pro Flight Controller uses the OMNIBUSF4 firmware. It is integrated with OSD and Current Sensor, so you don't need to flash firmware, and you can debug OSD via BF ground station. You also can adjust the PID by OSD via remote control. The integrated current sensor can monitor the real-time power consumption. This DYS F4 Pro Flight Controller is compatible with all ESCs, as well as DYS 4-..