4 layers40.8 × 40.8 mm
4 layers40.8 × 40.8 mm
ACwing FC A
ACwing-UAV/ACwing_HWACwing is a modular set of PCBs for small multirotors.
- Size
- 40.8 × 40.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 111
- Nets
- 68
- Pads
- 401
- Tracks, vias
- 1,498, 205
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 16 Oct 2026
- Updated
- 7 Nov 2026
Overview
ACwing FC A is an open-source printed circuit board by ACwing-UAV, from the ACwing-UAV/ACwing_HW repository on GitHub. It is a 4-layer board of 40.8 × 40.8 mm with 111 parts on 68 nets, routed with 1,498 tracks and 205 vias.
It is built around the STM32WB55CGU6, MLPF-WB55-01E3 and IIS2MDC, with the LPS22HH, W25Q128JVSIQ and LD39130SPUR among its other parts. Its parts include 35 capacitors, 32 resistors, 11 ICs, 8 connectors and 5 diodes. It belongs with the robots and motor control and radio and wireless boards and the STM32 boards of this library.
Main components
12
STM32WB55CGU6
UFQFPN-48(7x7)UFQFPN-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsRF Transceiver ICs
MLPF-WB55-01E3
SMD-6P,1.6x1mm-40℃~+105℃ 1.1dB 2.4GHz~2.5GHz 50Ω Low Pass SMD-6P,1.6x1mm RF Filters ROHSSTMicroelectronicsRF Filters
IIS2MDC
LGA-12(2x2)-40℃~+85℃ 1.13mA 1.71V~3.6V 16bit I2C、SPI ±4.9152mT ±4.9152mT LGA-12(2x2) 3D Magnetic Sensors ROHSSTMicroelectronics3D Magnetic Sensors
LPS22HH
HLGA-10(2x2)-40℃~+85℃ 0.025hpa 0.5hpa 1.7V~3.6V 26Kpa~1.26bar 900nA I2C、SPI On-chip temperature compensation、Integrated ADC and digital interface、On-chip calibration and non-volatile storage、Integrated signal amplifier、On-chip temperature output HLGA-10(2x2) Pressure Sensors ROHSSTMicroelectronicsPressure Sensors
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
LD39130SPUR
DFN6(1.2x1.3)-40℃~+125℃@(Tj) 1 300mA 300mV@(300mA) 45uA 5.5V 65dB@(10kHz) 800mV~5.2V 97uVrms Adjustable Over Current Protection、Over Temperature Protection、Soft Start、Enable、Thermal Shutdown Positive DFN6(1.2x1.3) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsLDK130PU-R
DFN-6L(1.2x1.3)-40℃~+125℃@(Tj) 1 300mA 30uA 400mV@(300mA) 5.5V 55dB@(10kHz) 800mV~5.1V Adjustable Over Current Protection、Over Temperature Protection、Enable Positive DFN-6L(1.2x1.3) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LSM6DSV16X
LGA-14_2.5x3mmUncategorisedSTMicroelectronics
SN74LV1T34DCKR
SOT-353-40℃~+125℃ 1 1 1.6V~5.5V 1.6V~5.5V CMOS CMOS Level translator Power-off protection Unidirectional SOT-353 Translators, Level Shifters ROHSTECH PUBLICTranslators, Level Shifters
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)XL-2020RGBC-WS2812B
SMD- LCDH ROHSXINGLIGHTUncategorised
2450AT18A0100001E
12060.5dBi 1.3mm 1.6mm 100MHz 2.4GHz 2W 3.2mm 50Ω Patch Antenna 1206 Antennas ROHSJohanson DielectricsAntennas
README
02 - ESC_1S_KiCadProj/README.mdACwing ESC 1S rev A – KiCad project
Project: ACwing · Author: Andrea Cirillo
KiCad sources of the ACwing ESC 1S rev A board (KiCad 10 project files, 2026-11-07). The board description, schematic PDF, BoM,
JLCPCB files, Gerber, STEP and board views are in 00 - Docs/01 - ESC_1S_Docs.
| File / folder | What |
|---|---|
ACwing_ESC1S_A.kicad_pro, .kicad_sch, .kicad_pcb | project, schematic, routed PCB |
*.kicad_sym, *.pretty/, fp-lib-table, sym-lib-table | project library (symbols, footprints, ACwing logos) |
3d/ | STEP models, referenced as ${KIPRJMOD}/3d/... |
generator/ | scripts that generated, routed and checked the design (build_all_esc.sh) |
Parts
111| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | 100nF | ACwing:C_0402_1005Metric | C1, C12, C14, C15, C16, C17, C19, C21, C23, C24, C25, C26, C28, C39, C40, C41 +3 |
| 9 | 100R | ACwing:R_0402_1005Metric | R20, R21, R22, R23, R24, R25, R26, R27, R28 |
| 4 | 10k | ACwing:R_0402_1005Metric | R9, R14, R37, R38 |
| 4 | D3.2 | ACwing:Grommet_PTH_3.2mm_Pad5.0mm | H1, H2, H3, H4 |
| 4 | XL-2020RGBC-WS2812B | ACwing:LED_WS2812B-2020_PLCC4_2.0x2.0mm | D1, D2, D3, D4 |
| 3 | 100k | ACwing:R_0402_1005Metric | R2, R10, R11 |
| 3 | 1uF | ACwing:C_0402_1005Metric | C8, C22, C43 |
| 2 | 100k 1% | ACwing:R_0402_1005Metric | R4, R8 |
| 2 | 2.2k | ACwing:R_0402_1005Metric | R15, R16 |
| 2 | 4.7k | ACwing:R_0402_1005Metric | R17, R18 |
| 2 | 4.7uF | ACwing:C_0603_1608Metric | C7, C9 |
| 2 | 4.7uF 50V | ACwing:C_1206_3216Metric | C2, C47 |
| 2 | 5.1k | ACwing:R_0402_1005Metric | R12, R13 |
| 2 | Qwiic | ACwing:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J3, J4 |
| 1 | 0R | ACwing:R_0402_1005Metric | R34 |
| 1 | 100pF | ACwing:C_0402_1005Metric | C27 |
| 1 | 100uF 6.3V | ACwing:C_1206_3216Metric | C6 |
| 1 | 10nF | ACwing:C_0402_1005Metric | C49 |
| 1 | 10nH | ACwing:L_0402_1005Metric | L2 |
| 1 | 10uF 6.3V | ACwing:C_0603_1608Metric | C20 |
| 1 | 15k 1% | ACwing:R_0402_1005Metric | R41 |
| 1 | 1k | ACwing:R_0402_1005Metric | R42 |
| 1 | 2.2uF | ACwing:C_0402_1005Metric | C44 |
| 1 | 2.2uH | ACwing:L_0805_2012Metric | L1 |
| 1 | 200k 1% | ACwing:R_0402_1005Metric | R48 |
| 1 | 220nF | ACwing:C_0402_1005Metric | C18 |
| 1 | 22uF 25V | ACwing:C_0805_2012Metric | C46 |
| 1 | 22uH | ACwing:L_Sunlord_SWPA5040S | L3 |
| 1 | 2450AT18A0100001E | ACwing:Johanson_2450AT18x100 | AE1 |
| 1 | 287k 1% | ACwing:R_0402_1005Metric | R3 |
| 1 | 32MHz | ACwing:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | 33R | ACwing:R_0402_1005Metric | R39 |
| 1 | 4.7uF | ACwing:C_0402_1005Metric | C29 |
| 1 | 470k 1% | ACwing:R_0402_1005Metric | R47 |
| 1 | 47k 1% | ACwing:R_0402_1005Metric | R40 |
| 1 | ACwing_Logo_Full_6mm | ACwing:ACwing_Logo_Full_6mm | LOGO1 |
| 1 | ACwing_Logo_Full_7mm | ACwing:ACwing_Logo_Full_7mm | LOGO2 |
| 1 | AO3401A | ACwing:SOT-23 | Q5 |
| 1 | BOOT0 | ACwing:TestPoint_Pad_D1.0mm | TP1 |
| 1 | CRSF_RX | ACwing:TestPoint_Pad_D1.0mm | TP5 |
| 1 | CRSF_TX | ACwing:TestPoint_Pad_D1.0mm | TP6 |
| 1 | DNP | ACwing:C_0402_1005Metric | C36 |
| 1 | ELRS | ACwing:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J5 |
| 1 | ESC link | ACwing:JST_SH_SM08B-SRSS-TB_1x08-1MP_P1.00mm_Horizontal | J2 |
| 1 | ESC link B | ACwing:JST_SH_SM08B-SRSS-TB_1x08-1MP_P1.00mm_Horizontal | J6 |
| 1 | GND | ACwing:TestPoint_Pad_2.0x2.0mm | J8 |
| 1 | GND | ACwing:TestPoint_Pad_D1.0mm | TP7 |
| 1 | IIS2MDC | ACwing:LGA-12_2x2mm_P0.5mm | U3 |
| 1 | LD39130SPUR | ACwing:DFN-6_1.3x1.2mm_P0.4mm | U5 |
| 1 | LDK130PU-R | ACwing:DFN-6_1.3x1.2mm_P0.4mm | U11 |
| 1 | LM5166DRCT | ACwing:Texas_DRC0010J | U12 |
| 1 | LPS22HH | ACwing:ST_HLGA-10_2x2mm_P0.5mm_LayoutBorder3x2y | U4 |
| 1 | LSM6DSV16X | ACwing:LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U1 |
| 1 | MLPF-WB55-01E3 | ACwing:ST_MLPF-WB55-01E3_CSP-6 | U8 |
| 1 | NRST | ACwing:TestPoint_Pad_D1.0mm | TP2 |
| 1 | PMEG2010AEH | ACwing:D_SOD-123F | D9 |
| 1 | SN74LV1T34DCKR | ACwing:SOT-353_SC-70-5 | U13 |
| 1 | STM32WB55CGU6 | ACwing:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U2 |
| 1 | SWCLK | ACwing:TestPoint_Pad_D1.0mm | TP3 |
| 1 | SWDIO | ACwing:TestPoint_Pad_D1.0mm | TP4 |
| 1 | USB-C (HRO TYPE-C-31-M-12) | ACwing:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | USBLC6-2SC6 | ACwing:SOT-23-6 | U7 |
| 1 | VBAT+ | ACwing:TestPoint_Pad_2.0x2.0mm | J7 |
| 1 | VDD | ACwing:TestPoint_Pad_D1.0mm | TP8 |
| 1 | W25Q128JV | ACwing:WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4mm | U10 |
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Questions
How big is the ACwing FC A PCB?
It measures 40.8 × 40.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ACwing FC A use?
111 parts, built around the STM32WB55CGU6, MLPF-WB55-01E3, IIS2MDC and LPS22HH. 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 ACwing FC A KiCad files?
From the ACwing-UAV/ACwing_HW repository on GitHub, at the commit this page was made from: the board is 01 - FC_KiCadProj/ACwing_FC_A.kicad_pcb and its schematic 01 - FC_KiCadProj/ACwing_FC_A.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ACwing FC A design in my own project?
Its repository states no licence, so its author keeps all rights: ask ACwing-UAV before reusing the design.