IC: Atmega644 PA Gyro/Acc: 6050MPU InvenSense Inc. Auto-level: Yes Input Voltage: 4.8-6.0V AVR interface: standard 6 pin Signal from Receiver: 1520us (5 channels) Signal to ESC: 1520us Firmware Version: OpenAeroVTOL S1: Pre-installed firmware Compatible with Dualcopter, Tricopter, Y6 Quadcopter, Quadcopter X, Hexcopter, Hexcopter X, Octocopter, Octocopter X, X8, H8, H6, V8, V6, Aero 1S Aileron, Aero 2S Aileron, Flying Wing, Singlecopter 2M 2S, Singlecopter 1M 4S (Custom Mix via the "Mixer Editor" option) The Mixer Editor allows you to adjust where and how much signal the motors receive from stick input and sensors. This allows you to create any configuration possible with up to 8 motors or servos Colour: Green Material: PCB Package Contents: 1 x Flight Controller Board Kit Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm Due to different batches, there may be differences in product appearance, including the colors of buttons and other small parts, which do not affect the use