4 layers40 × 100 mm
JPL MP3 circuit
hackclub/OnBoard
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51 parts915
4 layers52.6 × 33.8 mm
SRSFC
avaninder/Polaris1A high-speed flight computer for rocketry and UAVs
- Size
- 52.6 × 33.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 99
- Pads
- 254
- Tracks, vias
- 558, 90
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 27 Oct 2024
- Updated
- 8 Aug 2025
Overview
SRSFC is an open-source printed circuit board by avaninder, from the avaninder/Polaris repository on GitHub. It is a 4-layer board of 52.6 × 33.8 mm with 51 parts on 99 nets, routed with 558 tracks and 90 vias.
Its parts include 24 capacitors, 8 connectors, 6 resistors, 4 ICs and 1 diode. It belongs with the robots and motor control boards of this library.
README
README.mdPolaris Flight Computer
System clock: 480mhz
Interfaces:
- ST-Link
- USB OTG (type C)
- 5x Servo/BLDC Motor output
currently using:
- STM32H743ZIT6 MCU
- LSM6DSO 6-axis IMU
- BMP388 barometer
- SDMMC interface on MCU to write to micro SD card
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100nF | Capacitor_SMD:C_0402_1005Metric | C6, C7, C8, C9, C11, C13, C14, C15, C16, C17, C23, C25, C26, C27, C28 |
| 4 | MountingHole | MountingHole:MountingHole_4.3mm_M4_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R5, R6 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C22, C24 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C5 |
| 2 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C10, C12 |
| 2 | 20pF | Capacitor_SMD:C_0402_1005Metric | C2, C3 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 25MHz | X322525MSB4SI:OSC-SMD_4P-L3.2-W2.5-BL | X1 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | IBUS_RX | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J8 |
| 1 | POWER | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | SERVO1 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | SERVO2 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | SERVO3 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | SERVO4 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | SERVO5 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | SWD_interface | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1 |
| 1 | green_led | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | ~ | LSM6DSOWTR:LGA-14L_L3.0-W2.5-P0.50-TL | U2 |
| 1 | ~ | XUNPU-TS-1088-AR02016:SW-SMD_L3.9-W3.0-P4.45 | SW1 |
| 1 | ~ | SD_CARD_READER:TF-SMD_TF-PUSH | CARD1 |
| 1 | ~ | BMP388:SENSORM-SMD_BMP388 | U6 |
| 1 | ~ | AMS1117-3.3:SOT-223-4_L6.5-W3.5-P2.30-LS7.0-BR | U5 |
| 1 | ~ | STM32H750VBT6TR:QFP-100_L14.0-W14.0-P0.50-LS16.0-BL | U1 |
| 1 | ~ | TYPE-16-C:USB-C-SMD_TYPE-C-6PIN-2MD-073 | USB1 |
Questions
How big is the SRSFC PCB?
It measures 52.6 × 33.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the SRSFC use?
51 parts. 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 SRSFC KiCad files?
From the avaninder/Polaris repository on GitHub, at the commit this page was made from: the board is hardware/SRSFC.kicad_pcb and its schematic hardware/SRSFC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SRSFC design in my own project?
Its repository states no licence, so its author keeps all rights: ask avaninder before reusing the design.
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