Betaflight OSD (on screen display) is integrated in BetaFPV F4 brushed flight controllers that shows important flight data on your FPV feed, such as battery voltage, current draw and much more. You can even use it as a menu to change your quad’s PID, rates, filters and other settings.
The built in Frsky receiver is compatible with nearly all FrSky radios and compatible FrSky modules. Note that this is a SPI connection receiver. In Betaflight Configuration, it should be set as FRSKY_D receiver (aka Frsky D8 mode) or FRSKY_X receiver (aka Frsky D16 mode) in SPI RX mode.
|3-Axis Gyroscope and Accelerometer