HardLabs

Rocket-Build

Ben-Blair·Rocket-Build·pcb/flight_computer/flight_computer.kicad_pcb

Rocket-Build PCB layout, top view — open source STM32 board by Ben-Blair

About the Rocket-Build PCB

Rocket-Build is an open source STM32 PCB design by Ben-Blair, published on GitHub. It is a 4-layer board measuring 70 × 45 mm, with 74 components from 44 distinct parts.

Its main chip is the C15742, from the STM32 family. Other key parts include the C2863597, C7519, C1850418, C404329 and C15639. By type, the board carries 33 capacitors, 16 resistors, 9 ICs, 8 connectors, 3 diodes and 3 inductors.

From the project

One project so far: flightcomputer/, the custom STM32F405 board that docs/06 selected, docs/07 gave sensors to, and docs/14 turned into a BOM. This directory is where that BOM becomes a schematic and a board. As of 2026-09-24 it is placed, routed, DRC-clean and has a JLCPCB fab +

One project so far: flightcomputer/, the custom STM32F405 board that docs/06 selected, docs/07 gave sensors to, and docs/14 turned into a BOM. This directory is where that BOM becomes a schematic and a board. As of 2026-09-24 it is placed, routed, DRC-clean and has a JLCPCB fab + assembly package in flightcomputer/fab/ — read fab/ORDERING.md and "What is not done" at the bottom before you order: two parts are out of stock and every assembly rotation needs a look in JLC's preview.

Main components on the Rocket-Build

C2863597C15742C7519C1850418C404329C15639C97521C4153167C95414

Rocket-Build bill of materials (BOM)

74 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C2863597
TPS62162DSGT
U1
1
C15742
STM32F405RGT6
U2
1
C7519
USBLC6-2SC6
U3
1
C1850418
ICM-42688-P
U4
1
C404329
MMC5983MA
U5
1
C15639
MS5611-01BA03
U6
1
C97521
W25Q128JVSIQ
U7
1
C4153167
MAX-M10S
U8
1
C95414
LP2985-33DBVR
U9
1
C2682775
8MHz
Y1
1
C2962219
SWD (ARM 10-pin 1.27mm)
J3
1
C165948
USB-C
J4
1
C88373
u.FL GNSS ant
J5
1
servo 1 (raw 2S)
J6
1
servo 2 (raw 2S)
J7
1
servo 3 (raw 2S)
J8
1
servo 4 (raw 2S)
J9
1
debug UART
J10
1
C2886898
reset
SW1
1
C8598
SS14
D1
Show 24 more
QtyPartRefs
1
C12624
green
D2
1
blue
D3
1
C1017
600R@100MHz 2A
FB1
1
C1002
600R@100MHz
FB2
1
C86074
2.2uH
L1
2
C52306
22uF/25V
C1, C2
1
C15850
10uF/25V
C3
1
C1525
100nF/50V
C4
1
C45783
22uF/16V
C5
15
C1525
100nF
C6, C9, C10, C11, C12, C13, C19, C20 +7
2
C1547
12pF
C7, C8
2
C1779
4.7uF
C14, C32
2
C19110
2.2uF
C15, C16
2
C5673
1uF
C17, C30
2
C15195
10nF
C18, C31
1
C23630
2.2uF
C22
1
C15850
10uF SET/RESET
C23
1
C15850
10uF
C29
3
C25741
100k
R1, R2, R34
2
C11702
1k
R3, R7
7
C25744
10k
R4, R8, R9, R10, R11, R12, R13
2
C25905
5.1k
R5, R6
1
C25077
10
R33
1
C25779
33k
R35

Rocket-Build design files

The KiCad project lives in the Ben-Blair/Rocket-Build repository on GitHub; these links point at the commit this page was built from.

Rocket-Build: common questions

What microcontroller does the Rocket-Build use?

The Rocket-Build is built around the C15742, from the STM32 family.

How big is the Rocket-Build PCB?

The Rocket-Build measures 70 × 45 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Rocket-Build?

74 components, from 44 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Rocket-Build design files?

From the Ben-Blair/Rocket-Build repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Rocket-Build design in my own project?

The repository has no license, so all rights stay with Ben-Blair. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Rocket-Build without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

Similar boards