User Mannual as follows,
3D printable Femto FC holder.
l STM32F303 CPU
l MPU9250 accelerometer/gyro/compass (connected via SPI)
l 2-6S LiPo battery
l Integrated 5V/3A BEC
l Dedicated Sbus and serial RX with 5v ,Spektrum 1024/2048, SBUS, XBUS, SumD and SumH RX with built-in inverter
l 6Supports direct connection of 3.3v Spektrum Satellite receivers
l Telemetry support (frsky telemetry, smartport, and HoTT telemetry)
l Dedicated PPM receiver input
l Buzzer support
l Dedicated output for programmable LEDs - great for orientation, racing and night flying. (Currently mutually exclusive with the Transponder)
l BLHeli Passthrough ready（connect BLheli suite）
l 2.0 mm pin headers
l 80A Current tolerance (PDB)
l Integrated Battery monitoring
l Use all the features all the time; e.g. Connect your USB + SmartPort + SBus + LED Strip + Battery Monitoring + 4 motors - all at the same time!
l 20x20mm board
l Weight 2.2 grams
Use for Spektrum Satellite RX, Spektrum 1024/2048, SBUS, XBUS, SumD and SumH RX, etc.
※UART2/PPM - Serial RX or PPM RX + Telemetry
Use RX2 as PPM receiver. Use TX2 as telemetry output when using PPM.