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Avionic-Mastodonte

axpaul·Avionic-Mastodonte

Avionic-Mastodonte PCB layout, top view — open source Raspberry Pi board by axpaul
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About the Avionic-Mastodonte PCB

Avionic-Mastodonte is an open source Raspberry Pi PCB design by axpaul, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 40 × 100 mm, with 103 components from 33 distinct parts.

Its main chip is the 22850120ANG1SYA01, from the Raspberry Pi family. Other key parts include the LM340AT, C114179, C3008596, C5356103 and C89477. By type, the board carries 47 resistors, 18 capacitors, 14 connectors, 12 diodes, 8 ICs and 2 transistors.

From the project

Mastodonte experimental rocket avionic (On-board electronics) created by Paul Miailhe, Version 2025

Mastodonte est un ordinateur de bord, ou plus précisément un séquenceur, destiné à orchestrer de manière autonome les événements critiques d’un vol de fusée expérimentale. Il est conçu pour répondre aux exigences du cahier des charges du C'Space, et s’intègre à tout projet nécessitant un séquencement fiable, robuste et temps réel.

Mastodonte supervise et déclenche en toute autonomie les étapes clés du vol, sans intervention extérieure :

Avionic-Mastodonte, from the project README
From the project README

Main components on the Avionic-Mastodonte

LM340ATC114179C3008596C5356103C89477

Avionic-Mastodonte bill of materials (BOM)

103 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM340AT
U1
3
C114179
DRV8872DDA
U2, U3, U4
2
C3008596
ACPL-214-500E
U5, U6
1
C5356103
74HC14
U7
1
C89477
ADuM1281
U8
1
SQD50P04-13L_T4GE3
Q1
1
C7420339
BSS138
Q2
1
22850120ANG1SYA01
J1
8
Conn_01x02
J2, J3, J5, J6, J7, J8, J9, J14
2
Conn_01x04
J4, J13
2
Conn_01x03
J10, J11
1
Conn_01x06
J12
1
Buzzer
BZ1
1
C207075
1812L260/16MR
F1
1
C7420320
1N4148WT
D1
1
(NC)
D2
1
C2288
LED-B
D3
1
C364286
SMAJ14A
D4
5
C2286
LED-R
D5, D7, D9, D11, D12
3
C5123548
LED-G
D6, D8, D10
Show 13 more
QtyPartRefs
1
C1857
220nF
C1
1
C24497
100nF
C2
7
C15849
1uF
C3, C13, C14, C15, C16, C17, C18
6
C14663
100nF
C4, C6, C8, C10, C19, C20
3
C76659
47uF
C5, C7, C9
14
C25804
10K
R1, R5, R20, R21, R22, R23, R24, R25 +6
3
C21190
1k
R2, R32, R33
19
C21189
0R
R3, R9, R10, R11, R12, R13, R14, R26 +11
1
C22975
2k
R4
3
0R(NC)
R6, R42, R47
2
C23162
4K7
R7, R8
3
C23241
750R
R15, R16, R17
2
C23179
470R
R18, R19

Avionic-Mastodonte design files

The KiCad project lives in the axpaul/Avionic-Mastodonte repository on GitHub; these links point at the commit this page was built from.

Avionic-Mastodonte: common questions

What microcontroller does the Avionic-Mastodonte use?

The Avionic-Mastodonte is built around the 22850120ANG1SYA01, from the Raspberry Pi family.

How big is the Avionic-Mastodonte PCB?

The Avionic-Mastodonte measures 40 × 100 mm, has 4 copper layers and is 1.5 mm thick.

How many components are on the Avionic-Mastodonte?

103 components, from 33 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 Avionic-Mastodonte design files?

From the axpaul/Avionic-Mastodonte 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 Avionic-Mastodonte design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which axpaul chose for the repository.

Can I test firmware for the Avionic-Mastodonte without the hardware?

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

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