4 layers66.4 × 66.4 mm
Rera
fdiwth/tvc-drone
This repository contains the documentation, hardware designs, and source code for a Thrust Vector Control (TVC) drone.
140 parts34GPL-3.0
4 layers50 × 50 mm
Twin vec fc a
epicgrowl/flight-controllerProbably not a very good design, but fully functional and stable.
- Size
- 50 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 63
- Nets
- 64
- Pads
- 246
- Tracks, vias
- 725, 97
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 Jan 2026
- Updated
- 23 Jan 2026
Overview
Twin vec fc a is an open-source printed circuit board by epicgrowl, from the epicgrowl/flight-controller repository on GitHub. It is a 4-layer board of 50 × 50 mm with 63 parts on 64 nets, routed with 725 tracks and 97 vias.
It is built around the BMM150, AMS1117-3.3 and MPU-6500. Its parts include 16 capacitors, 16 resistors, 13 connectors, 5 ICs and 4 switches. It belongs with the STM32 boards of this library.
Main components
3
BMM150
WLCSP-12(1.6x1.6)-40℃~+85℃ 1.62V~3.6V I2C、SPI ±1.3mT ±2.5mT WLCSP-12(1.6x1.6) 3D Magnetic Sensors ROHSBosch3D Magnetic Sensors
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MPU-6500
QFN-24-40℃~+85℃ 16bit 6uA Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps QFN-24-EP(3x3) Accelerometers ROHSTDK InvenSenseAccelerometers
README
README.mdFlight Controller
Simple flight controller PCB. Used to gain practical experience with designing, ordering, and testing MCU in custom application.
Probably not a very good design, but fully functional and stable.
Device Summary
- STM32F103CBT MCU
- MPU-6500 IMU
- BMM150 Magnetometer
- KP464 Barometer
- AMS1117 Regulator
Feature & Connection Summary
- 6x PWM Pinout (ESC, Servo, etc.)
- 6x GPIO Pin
- 2x UART Header
- 2x I2C Header
- SPI Header
- SWD Debug Header
- +3V3 Logic
- Variable Input Voltage
- 2x Push Button
- 2x Switch
- RST Button
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5, J6, J7, J8, J9, J10 |
| 5 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C10, C11, C12, C13, C14 |
| 5 | R_Small | Resistor_SMD:R_0805_2012Metric | R6, R7, R8, R9, R10 |
| 4 | 100n | Capacitor_SMD:C_0805_2012Metric | C4, C5, C6, C7 |
| 4 | 4.7k | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R5 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 22 | Resistor_SMD:R_0805_2012Metric | R14, R15, R16 |
| 3 | 620 | Resistor_SMD:R_0805_2012Metric | R11, R12, R13 |
| 3 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW2, SW3, SW4 |
| 2 | 18p | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C3, C8 |
| 2 | Conn_01x02_Socket | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J11, J12 |
| 2 | Conn_01x08_Pin | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J1, J2 |
| 1 | 100M | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 10n | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C15 |
| 1 | 22u | Capacitor_SMD:C_0805_2012Metric | C16 |
| 1 | 8M | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | BMM150 | fc:BGA_1590X1590_BOS | U3 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J4 |
| 1 | Conn_01x06_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J3 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J13 |
| 1 | GREEN | LED_SMD:LED_0805_2012Metric | D3 |
| 1 | KP464 | fc:IFX-PG-DFN-8-1-V | U4 |
| 1 | MPU-6500 | fc:QFN24_3X3X0P9_IVS | U2 |
| 1 | RED | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | STM32F103CBTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_DIP_x02 | Button_Switch_SMD:SW_DIP_SPSTx02_Slide_9.78x7.26mm_W8.61mm_P2.54mm | SW1 |
| 1 | YELLOW | LED_SMD:LED_0805_2012Metric | D1 |
Questions
How big is the Twin vec fc a PCB?
It measures 50 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Twin vec fc a use?
63 parts, built around the BMM150, AMS1117-3.3 and MPU-6500. 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 Twin vec fc a KiCad files?
From the epicgrowl/flight-controller repository on GitHub, at the commit this page was made from: the board is twin-vec-fc-a.kicad_pcb and its schematic twin-vec-fc-a.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Twin vec fc a design in my own project?
Its repository states no licence, so its author keeps all rights: ask epicgrowl before reusing the design.
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