6 layers37.9 × 37.9 mm
OpenFC
OpenDrone-hw/OpenFC-Lite
Open-source Betaflight flight controller. RP2354B, 30.5x30.5 mm, 6-layer, 3-8S, CERN-OHL-S-2.0.
164 parts85CERN-OHL-S-2.0
6 layers48 × 58 mm
FlightControllerV2
HazzerTheGreat/SPARA flight controller for fixed wing UAVs based on the STM32H7 and designed to run betaflight or INAV
- Size
- 48 × 58 mm
- Copper layers
- 6
- Thickness
- 1.6 mm
- Parts
- 105
- Nets
- 145
- Pads
- 470
- Tracks, vias
- 893, 278
- Pours
- 33
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 13 Aug 2026
- Updated
- 29 Sep 2026
Overview
FlightControllerV2 is an open-source printed circuit board by HazzerTheGreat, from the HazzerTheGreat/SPAR repository on GitHub. It is a 6-layer board of 48 × 58 mm with 105 parts on 145 nets, routed with 893 tracks and 278 vias.
It is built around the AT7456E, LMR33630ARNXR and BMP280, with the 8122S-25.000NQ33FTL, AP2112K-3.3 and SM03B-SRSS-TB(LF)(SN) among its other parts. Its parts include 52 capacitors, 16 resistors, 15 connectors, 13 ICs and 2 diodes. It belongs with the robots and motor control boards and the STM32 boards of this library.
Main components
12
AT7456E
HTSSOP-28-EP-40℃~+85℃ 3.15V~5.25V Built-in+External HTSSOP-28-EP Microcontrollers (MCU/MPU/SOC) ROHSZHONGKEWEIMicrocontrollers (MCU/MPU/SOC)
LMR33630ARNXR
VQFN-12(2x3)-40℃~+125℃@(TJ) 1 1V~24V 24uA 3.8V~36V 3A 400kHz Adjustable Buck Buck Built-in Yes VQFN-12(2x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
BMP280
LGA-8(2x2.5)-40℃~+85℃ 0.12hpa 1.5pa/K 1.71V~3.6V 1hpa 300nA 30Kpa~1.1bar I2C、SPI Integrated ADC and digital interface、On-chip calibration and non-volatile storage、Standby mode、On-chip temperature output LGA-8(2x2.5) Pressure Sensors ROHSBoschPressure Sensors
8122S-25.000NQ33FTL
SMD2520-4P-30℃~+85℃ 25MHz 3.3V Clipped sine wave ±500ppb SMD2520-4P Temperature Compensated Crystal Oscillators (TCXO) ROHSHCITemperature Compensated Crystal Oscillators (TCXO)
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
SM03B-SRSS-TB(LF)(SN)
SMD,P=1mm,卧贴-25℃~+85℃ 1 1A 1mm 1x3P 2.9mm 3 3P 4.32mm 50V 5mm Auxiliary Solder Pin Copper alloy PA SH Surface Mount, Right Angle Tin UL94V-0 White SMD,P=1mm,卧贴 Wire To Board Connector ROHSJSTWire To Board Connector
SM06B-SRSS-TB(LF)(SN)
SMD,P=1mm,卧贴-25℃~+85℃ 1 1A 1mm 1x6P 2.9mm 4.32mm 50V 6 6P 8mm Auxiliary Solder Pin Copper alloy PA SH Surface Mount, Right Angle Tin UL94V-0 White SMD,P=1mm,Surface Mount，Right Angle Wire To Board Connector ROHSJSTWire To Board Connector
ICM-42688-P
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 16bit 2KB 7.5uA IMU (accelerometer + gyroscope) SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps Motion Event Detection, Synchronization, Timestamp Support LGA-14(2.5x3) Accelerometers ROHSTDK InvenSenseAccelerometers
SMMS0530-100M
SMD,5.5x5.2mm10uH 125mΩ 3.2A 3.5A Molded Inductor ±20% SMD,5.5x5.2mm Molding Power Inductors ROHSSXNPower Inductors
SX3M27.000M20F30TNN
SMD3225-4P-40℃~+85℃ 1.62V~3.63V 10mA 27MHz CMOS ±20ppm ±30ppm SMD3225-4P Crystal Oscillators ROHSShenzhen SCTF ElecCrystal OscillatorsSX3M32.768KM20F30TNN
SMD3225-4P-40℃~+85℃ 1.62V~3.63V 32.768kHz 90uA CMOS ±20ppm ±30ppm SMD3225-4P Crystal Oscillators ROHSShenzhen SCTF ElecCrystal Oscillators
SM04B-SRSS-TB(LF)(SN)
SMD,P=1mm,卧贴-25℃~+85℃ 1 1A 1mm 1x4P 2.9mm 4 4.32mm 4P 50V 6mm Auxiliary Solder Pin Copper alloy PA SH Surface Mount, Right Angle Tin UL94V-0 White SMD,P=1mm,卧贴 Wire To Board Connector ROHSJSTWire To Board Connector
README
README.mdSPAR
This is a flight controller primarily designed for fixed wing aircraft (or quadcopters etc) that is designed to run either BetaFlight, INAV or ArduPilot firmware. It handles flight stabilization, OSD, control of servos, waypoints, data logging and anything else any other flight controller can do. This flight controller has an STM32H743 which is an extremely capable MCU with a blazing fast speed of up to 480MHz. Most likely overkill for the majority of applications but it can accomodate for the most demanding projects. I made it as I was interested in the design of such systems and also enjoy building aircraft and could find a highly capable flight controller useful plus the benefit that I have built it myself.
Specs:
- ICM-42688-P for peak performance and high resolution positional sensing
- STM32H743 for processing whatever you need
- 5V and 9V buck converters for handling high power peripherals
- Micro SD card for black box logging
- 4 in 1 ESC support with DSHOT
- 6 other PWM outputs
- Analog OSD through AT7456E
- Support for external magnetometer, airspeed sensor and GPS
- BMP280 barometer for altitude measurements
Peripherals:
The flight controller board has connectors for external airspeed, GPS, and mag sensors as well as plugs for ELRS, 4 in 1 ESC, analog camera, analog VTX, digital VTX and PWM LEDs.
Firmware/flashing:
This board does not have custom firmware, it is based on INAV: https://github.com/iNavFlight/inav/. However a custom build of INAV including relevant target configuration is required. I will put this custom target in the /Project_Files/INAV folder. This tutorial shows how to build INAV with a custom target: https://youtu.be/ThrsS_y9zDo?si=cllAaaTRHZ6ADbW4 To flash the board, the board must be powered up with the boot0 pin shorted to enter DFU mode on the STM32 where it can then be flashed in INAV configurator.
BOM:
The board costs about £27 from JLCPCB for a basic 6 layer PCB. The BOM for components can be found in the BOM.csv in the production folder. This totals around £40 which mainly accounts for buying large quantities of passives so the per board price is probably much cheaper.
Parts
105| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C4, C10, C11, C12, C13, C14, C15, C16, C18, C19, C27, C30, C32, C34, C46 +9 |
| 9 | 22uF | Capacitor_SMD:C_0603_1608Metric | C8, C23, C24, C25, C26, C38, C39, C40, C41 |
| 6 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6, J7, J8, J9, J10, J11 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R6, R7 |
| 5 | 1uF | Capacitor_SMD:C_0402_1005Metric | C22, C37, C42, C43, C44 |
| 4 | 10uF | Capacitor_SMD:C_0402_1005Metric | C9, C17, C20, C35 |
| 3 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C33 |
| 2 | 1.2k | Resistor_SMD:R_0603_1608Metric | R16, R17 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric | R10, R12 |
| 2 | 10uH | easyeda2kicad:IND-SMD_L5.2-W5.2_MCW-0530 | L1, L2 |
| 2 | 220nF | Capacitor_SMD:C_0402_1005Metric | C21, C36 |
| 2 | 47uF | Capacitor_SMD:C_0603_1608Metric | C28, C29 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | 600@100MHz | Capacitor_SMD:C_0603_1608Metric | FB1, FB2 |
| 2 | 75 | Resistor_SMD:R_0603_1608Metric | R18, R19 |
| 2 | LMR33630ARNXR | easyeda2kicad:VQFN-12_L3.0-W2.0-P0.65-BL_TI_RNX | U8, U9 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C31 |
| 1 | 12.4k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 200 | Resistor_SMD:R_0603_1608Metric | R20 |
| 1 | 24.9k | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 25MHz | easyeda2kicad:OSC-SMD_4P-L2.5-W2.0-BL | U6 |
| 1 | 27MHz | easyeda2kicad:OSC-SMD_4P-L3.2-W2.5-BL | X2 |
| 1 | 32.768kHz | easyeda2kicad:OSC-SMD_4P-L3.2-W2.5-BL | X1 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C45 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | ASPD | easyeda2kicad:CONN-SMD_4P-P1.00_SM04B-SRSS-TB-LF-SN | CN1 |
| 1 | AT7456E | easyeda2kicad:TSSOP-28_L9.7-W4.4-P0.65-LS6.4-BL-EP-2 | U12 |
| 1 | BMP280 | Package_LGA:Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering | U3 |
| 1 | BOOT0 Header | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | CAM | easyeda2kicad:CONN-SMD_SM03B-SRSS-TB-LF-SN-P | U13 |
| 1 | ELRS | easyeda2kicad:CONN-SMD_4P-P1.00_SM04B-SRSS-TB-LF-SN | CN5 |
| 1 | ESC_Connector | easyeda2kicad:CONN-TH_SM08B-SRSS-TB-LF-SN | P1 |
| 1 | GPS | easyeda2kicad:CONN-SMD_4P-P1.00_SM04B-SRSS-TB-LF-SN | CN4 |
| 1 | HD | easyeda2kicad:CONN-SMD_SM06B-SRSS-TB-LF-SN | U10 |
| 1 | ICM-42688-P | easyeda2kicad:LGA-14_L3.0-W2.5-P0.50-TL | U1 |
| 1 | LED1 | easyeda2kicad:CONN-SMD_SM03B-SRSS-TB-LF-SN-P | U4 |
| 1 | LED2 | easyeda2kicad:CONN-SMD_SM03B-SRSS-TB-LF-SN-P | U11 |
| 1 | LM66200DRLR | easyeda2kicad:SOT-583-8_L2.1-W1.2-P0.50-LS1.6-BL | U2 |
| 1 | MAG | easyeda2kicad:CONN-SMD_4P-P1.00_SM04B-SRSS-TB-LF-SN | CN2 |
| 1 | Micro_SD_Card | easyeda2kicad:TF-SMD_TF-PUSH | J1 |
| 1 | PD9 | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | STM32H743VITx | Package_QFP:LQFP-100_14x14mm_P0.5mm | U7 |
| 1 | USBLC6-2SC6 | easyeda2kicad:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | D1 |
| 1 | USB_C_Receptacle_USB2.0_16P | easyeda2kicad:USB-C-SMD_TYPE-C-16PIN-2MD-073 | J3 |
| 1 | VTX | easyeda2kicad:CONN-SMD_4P-P1.00_SM04B-SRSS-TB-LF-SN | CN3 |
The 104 most common of 105 parts.
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Questions
How big is the FlightControllerV2 PCB?
It measures 48 × 58 mm and has 6 copper layers, 1.6 mm thick.
What parts does the FlightControllerV2 use?
105 parts, built around the AT7456E, LMR33630ARNXR, BMP280 and 8122S-25.000NQ33FTL. 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.
Where can I download the FlightControllerV2 KiCad files?
From the HazzerTheGreat/SPAR repository on GitHub, at the commit this page was made from: the board is PCB/FlightControllerV2.kicad_pcb and its schematic PCB/FlightControllerV2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the FlightControllerV2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask HazzerTheGreat before reusing the design.