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Flight computer

Helios-Rocket·fin-strain-gauge·Hardware/flight-computer/flight-computer.kicad_pcb

Flight computer PCB layout, top view — open source ESP32 board by Helios-Rocket
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About the Flight computer PCB

Flight computer is an open source ESP32 PCB design by Helios-Rocket, published on GitHub. It is a 4-layer board measuring 25.5 × 51.5 mm, with 36 components from 24 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the LMR51420X, LSM6DSO32TR, INA2180A1IDGKR and MPL3115A2. By type, the board carries 11 capacitors, 9 resistors, 5 ICs, 5 connectors, 3 diodes and 2 transistors.

Main components on the Flight computer

LMR51420XESP32-S3-WROOM-1LSM6DSO32TRINA2180A1IDGKRMPL3115A2

Flight computer bill of materials (BOM)

36 components, 24 distinct parts.

QtyPartRefs
1
LMR51420X
U1
1
ESP32-S3-WROOM-1
U2
1
LSM6DSO32TR
U3
1
INA2180A1IDGKR
U4
1
MPL3115A2
U5
2
DMN3404L
Q1, Q2
1
Conn_01x10_Pin
J2
1
Power Connector
J3
1
Micro_SD_Card
J4
1
USB_C_Receptacle_USB2.0_16P
J5
1
Conn_01x02_Pin
J6
1
DFLS160-7
D1
2
LED
D2, D3
1
6.8uH
L1
1
33uF
C1
7
100nF
C2, C3, C4, C5, C7, C8, C10
1
47uF
C6
1
0.1uF
C9
1
10uF
C11
2
100k
R1, R2
Show 4 more
QtyPartRefs
1
22.1k
R3
2
5.1k
R4, R5
2
220
R6, R7
2
15 mOhm
R9, R10

Flight computer design files

The KiCad project lives in the Helios-Rocket/fin-strain-gauge repository on GitHub; these links point at the commit this page was built from.

Flight computer: common questions

What microcontroller does the Flight computer use?

The Flight computer is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Flight computer PCB?

The Flight computer measures 25.5 × 51.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Flight computer?

36 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Flight computer design files?

From the Helios-Rocket/fin-strain-gauge repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Flight computer design in my own project?

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

Can I test firmware for the Flight computer without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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