Matek Systems F405 STD BetaFlight STM32F405 Flight Controller Built in Inverter for SBUS InputSpecification user manual Brand Matek SystemsItem name Flight Control BoardSize 36x36mmMounting hole 30 5mmWeight 7gMCU 168MHz STM32F405RGT6IMU 32K ICM20602 gyro accelerometer SPI Baro BMP280 I2C OSD BetaFlight OSD w AT7456E chipBlackbox MicroSD card slot SD SDHC VCP UART1 UART2 UART3 UART4 UART5Built in inverter for SBUS input UART2 RX PPM UART Shared UART2 RXSoftSerial on TX2 S5 or S6 optionalCamera control on S6 or DAC optionalSmartaudioTramp VTX protocol supportedBattery Voltage Sensor 1 10Current Sensor No FCHUB 6S FCHUB VTX FCHUB W option BEC 5V No FCHUB 6S FCHUB VTX FCHUB W option LDO 3 3V Max 300mAI2C1 SDASCL YesWS2812 Led Strip YesBeeper YesRSSI Yes Features 3x LEDs for FC STATUS Blue Red and 3 3V indicator Red 6x PWM DShot outputs without conflict2x 2812LED outputs option5x UARTs1x Group of 5V G S1 S2 S3 S4 pads for 4in1 ESC Signal GND4x pairs of corner pads for ESC Signal GND connections DSHOT compatible 1x pair I2C1 pads1x Side press button for BOOT DFU mode1x 16pin bottom mounted FFC Slot for FCHUB 6S FCHUB VTX or FCHUB W connection Package included 1x flight control board2x 0 5mm 16Pin 5cm Flexible Flat Cable4x M3 Anti vibration Standoffs