12Robert20/STM32F7-Flight-ControllerA custom 4-layer high-performance flight controller for FPV drones. Built around the STM32F777, featuring DShot600, CRSF support, and advanced LC filtering.
FlightController is an open-source printed circuit board by 12Robert20, from the 12Robert20/STM32F7-Flight-Controller repository on GitHub. It is a 4-layer board of 50 × 47.1 mm with 79 parts on 134 nets, routed with 495 tracks and 105 vias.
It is built around the BMP280, LMR51430YDDC and W25Q128JVSIQ, with the AP2112K-3.3, USBLC6-2SC6 and SMAJ28A among its other parts. Its parts include 36 capacitors, 14 resistors, 8 ICs, 7 connectors and 2 diodes. It belongs with the robots and motor control boards and the STM32 boards of this library.
A high-performance, 4-layer custom Flight Controller designed in KiCad 8. Built around the powerful STM32F777 microcontroller, it features an advanced IMU, integrated OSD, and Blackbox logging capabilities, tailored for demanding FPV and autonomous flight applications.
STM32F777VIT6 (ARM Cortex-M7, 216MHz, 2MB Flash, 512KB RAM)LSM6DSV320XTR (Connected via SPI6)MAX7456EUI+ (Analog Video Overlay, SPI4)BMP280 (Altitude sensing, I2C1)W25Q128JVS (16MB/128Mbit SPI Flash for flight data logging, SPI3)USBLC6-2SC6 ESD protection diode.To ensure clean video feeds and stable logic levels, the power delivery is split and filtered:
LMR51430Y synchronous buck converter, providing a highly efficient 5V at up to 3A for the MCU, OSD, and external peripherals (VTX, Camera, GPS).AP2112K-3.3 linear regulator derives a clean 3.3V from the 5V rail to power the noise-sensitive STM32 MCU, IMU, Baro, and Flash memory.| Interface | Bus / Pins | Description |
|---|---|---|
| ESC / Motors | M1 - M4 | 4x Motor Outputs (DShot600 compatible) |
| Receiver (RX) | UART1 | CRSF Protocol (e.g., TBS Crossfire, ExpressLRS) |
| GPS / Compass | UART2 + I2C1 | GNSS Module connectivity |
| Video TX (VTX) | Video Out | 5V, GND, Video Signal (SpeedyBee TX800 VTX support) |
| Camera | Video In | 5V, GND, Video Signal (Analog Camera e.g., CADDXFPV) |
| Debug | SWD | SWCLK / SWDIO pads for ST-Link debugging |
To ensure signal integrity and controlled impedance for high-speed traces, a standard 4-layer stackup is utilized:
This hardware is architected to be compatible with major open-source flight controller firmware. Custom target definition files are required to map the pins correctly.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100n | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4, C5, C6, C7, C15, C24, C25, C28, C29, C31 |
| 4 | 0.1u | Capacitor_SMD:C_0402_1005Metric | C19, C20, C21, C22 |
| 4 | 1u | Capacitor_SMD:C_0603_1608Metric | C8, C10, C11, C27 |
| 4 | 22u | Capacitor_SMD:C_1206_3216Metric | C30, C32, C37, C38 |
| 4 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C1, C14, C33, C34 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 100k | Resistor_SMD:R_0603_1608Metric | R9, R11, R12 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R6 |
| 2 | 2.2u | Capacitor_SMD:C_0603_1608Metric | C12, C13 |
| 2 | 20pF | Capacitor_SMD:C_0402_1005Metric | C16, C23 |
| 2 | 47u | Capacitor_SMD:C_0603_1608Metric | C17, C18 |
| 2 | 4k7 | Resistor_SMD:R_0402_1005Metric | R14, R15 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | 75R | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | Conn_01x04_Socket | Connector_Wire:SolderingWirePad_1x04_SMD_2x4mm | J6, J7 |
| 1 | 1.4k | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C9 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C26 |
| 1 | 10uH | Inductor_SMD:L_0402_1005Metric | L2 |
| 1 | 120R | Inductor_SMD:L_0402_1005Metric | FB1 |
| 1 | 13k7 | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 27MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y2 |
| 1 | 3.3uH | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | 8MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U8 |
| 1 | BMP280 | Package_LGA:Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering | U5 |
| 1 | CAM | Connector_Wire:SolderingWirePad_1x03_SMD_2x4mm | J1 |
| 1 | Conn_01x02_Socket | Connector_Wire:SolderWirePad_1x02_SMD_2x4mm | J4 |
| 1 | D_Schottky | Diode_SMD:D_SMA | D1 |
| 1 | GNSS | Connector_Wire:SolderingWirePad_1x04_SMD_2x4mm | U2 |
| 1 | LMR51430Y | Package_TO_SOT_SMD:SOT-23-6 | U10 |
| 1 | LSM6DSV320XTR | LSM6DSV320XTR:LSM6DSV16BXTR | IMU1 |
| 1 | SMAJ28A | Diode_SMD:D_SMA | D2 |
| 1 | STM32F777VITx | Package_QFP:LQFP-100_14x14mm_P0.5mm | U1 |
| 1 | SW_Omron_B3FS | Button_Switch_SMD:SW_SPST_Omron_B3FS-100xP | SW1 |
| 1 | SW_SPDT | Button_Switch_THT:SW_CK_JS202011AQN_DPDT_Angled | SW2 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U4 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J5 |
| 1 | VTX | Connector_Wire:SolderingWirePad_1x03_SMD_2x4mm | J2 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U6 |
| 1 | max7456eui+ | footprints:21-0108G_U28E-5_MXM-M | U3 |
| 1 | ~ | Connector_Wire:SolderingWirePad_1x04_SMD_2x4mm | J3 |
It measures 50 × 47.1 mm and has 4 copper layers, 1.6 mm thick.
79 parts, built around the BMP280, LMR51430YDDC, W25Q128JVSIQ and AP2112K-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the 12Robert20/STM32F7-Flight-Controller repository on GitHub, at the commit this page was made from: the board is Hardware/FlightController.kicad_pcb and its schematic Hardware/FlightController.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask 12Robert20 before reusing the design.
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