HardLabs

Flight computer

linguini1·pygmy·flight-computer/flight-computer.kicad_pcb

Flight computer PCB layout, top view — open source RP2040/RP2350 board by linguini1

About the Flight computer PCB

Flight computer is an open source RP2040/RP2350 PCB design by linguini1, published on GitHub. It is a 4-layer board measuring 83.7 × 62.9 mm, with 82 components from 41 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q16JVSS, USBLC6-2SC6, M24C32-FMN, MS5607-02BA and LIS2MDL. By type, the board carries 32 capacitors, 23 resistors, 11 ICs, 5 connectors, 4 diodes and 2 transistors.

From the project

RP2040-based flight computer for rockets

This project is a rocket flight computer design for my TRA L1 certification flight. The name is a play on the fact that it's designed to be small and also runs on a Pi (Py) chip. Yes, that means you can program it with MicroPython (Py).

The Pygmy was designed with the [Apache NuttX RTOS][nuttx] in mind (you can find the board support for it [here][pygmy-nx]), but it is also possible to program it using the Pico C SDK or MicroPython (or really, whatever else you can flash on an RP2040).

Flight computer, from the project README
From the project README

Main components on the Flight computer

RP2040W25Q16JVSSUSBLC6-2SC6M24C32-FMNMS5607-02BALIS2MDLLSM6DSO32TRLC86GRN2903LM3671MFTPS2116DRL

Flight computer bill of materials (BOM)

82 components, 41 distinct parts.

QtyPartRefs
1
RP2040
U1
1
W25Q16JVSS
U2
1
USBLC6-2SC6
U3
1
M24C32-FMN
U4
1
MS5607-02BA
U5
1
LIS2MDL
U6
1
LSM6DSO32TR
U7
1
LC86G
U8
1
RN2903
U9
1
LM3671MF
U10
1
TPS2116DRL
U11
1
PMOS
Q1
1
NMOS
Q2
1
12MHz
Y1
1
MicroSD Slot
J1
1
USB_C_Receptacle_USB2.0_16P
J2
1
SMA_Coax
J3
1
Conn_01x02
J4
1
ARM
J5
1
ACTIVE BUZZER
LS1
Show 21 more
QtyPartRefs
1
SW_Push
SW1
1
SW_Push
SW2
1
RED LED
D1
3
GREEN LED
D2, D3, D4
1
2u2
L1
2
15p
C1, C2
19
100n
C3, C5, C6, C8, C9, C10, C11, C12 +11
1
2u2
C4
4
1u
C7, C28, C29, C32
2
10u
C18, C30
1
220n
C21
3
4u7
C22, C27, C31
3
10k
R1, R16, R21
4
1k
R2, R9, R18, R19
4
2k2
R3, R4, R5, R6
2
27R
R7, R8
2
5k1
R10, R11
5
330R
R12, R13, R14, R17, R23
1
150R
R15
1
5k6
R20
1
33k
R22

Flight computer design files

The KiCad project lives in the linguini1/pygmy 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 RP2040, from the RP2040/RP2350 family.

How big is the Flight computer PCB?

The Flight computer measures 83.7 × 62.9 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the Flight computer?

82 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the Flight computer design files?

From the linguini1/pygmy 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 linguini1. 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 RP2040/RP2350 firmware against it before you order a PCB.

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