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Underwater-Communication

Frrrrrrrrrank·Underwater-Communication

Underwater-Communication PCB layout, top view — open source STM32 board by Frrrrrrrrrank

About the Underwater-Communication PCB

Underwater-Communication is an open source STM32 PCB design by Frrrrrrrrrank, published on GitHub. It is a 4-layer board measuring 80 × 80 mm, with 211 components from 63 distinct parts.

Its main chip is the STM32G474RBTx, from the STM32 family. Other key parts include the OPA820, RY8411, RS3236, TPA3116D2DAD and GS8551. By type, the board carries 84 capacitors, 68 resistors, 15 diodes, 11 ICs, 9 test points and 7 switches.

Main components on the Underwater-Communication

OPA820RY8411STM32G474RBTxRS3236TPA3116D2DADGS8551TPD4E1U06DCKRISO_DCCH343P

Underwater-Communication bill of materials (BOM)

211 components, 63 distinct parts.

QtyPartRefs
3
OPA820
U1, U6, U7
1
RY8411
U2
1
STM32G474RBTx
U3
1
RS3236
U4
1
TPA3116D2DAD
U5
1
GS8551
U8
1
TPD4E1U06DCKR
U9
1
ISO_DC
U10
1
CH343P
U16
1
AO3400A
Q1
1
25MHz
Y1
1
PWRIn
J2
1
SWD
J3
1
Conn_01x04
J4
1
Conn_01x04
J20
1
Buzzer
BZ2
1
5A
F1
1
0.5A
F2
1
1.2A
F3
1
Speaker_Crystal
LS1
Show 43 more
QtyPartRefs
1
SW_SPDT
SW1
1
NRST
SW2
1
BOOT0
SW3
4
SW
SW4, SW5, SW6, SW7
9
TestPoint_Probe
TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9 +1
1
SMAJ12A
D1
1
SMF5.0A
D2
1
K34
D3
2
LED_Yellow
D4, D37
2
LED_White
D5, D36
2
LED_Blue
D6, D34
2
LED_Pink
D7, D35
3
LED
D11, D32, D33
1
DSS34
D12
1
6u8
L1
3
10u
L2, L3, L4
1
L_Coupled
L5
1
220r
L6
9
10u
C1, C11, C17, C25, C47, C49, C53, C54 +1
33
100n
C2, C3, C4, C6, C8, C9, C10, C12 +25
1
100u 16V
C5
5
10u
C7, C21, C22, C57, C58
10
1u
C15, C45, C61, C63, C65, C69, C77, C79 +2
4
20p
C20, C51, C52, C67
3
10n
C23, C35, C36
4
220n
C27, C28, C29, C30
2
450n
C31, C32
7
1n
C33, C34, C39, C40, C41, C42, C43
2
470n
C37, C38
2
0u1
C44, C46
1
47u
C56
1
47u
C85
1
53.6k
R2
14
10k
R3, R9, R22, R28, R30, R31, R33, R47 +6
4
2.2k
R6, R21, R25, R26
5
0r
R7, R10, R14, R15, R16
3
100k
R8, R11, R13
1
20k
R12
2
3.3r
R17, R18
10
33r
R19, R20, R37, R38, R39, R40, R41, R42 +2
5
4.7k
R23, R29, R35, R54, R55
14
1k
R24, R27, R34, R43, R44, R45, R46, R50 +6
9
330R
R32, R36, R51, R58, R60, R62, R64, R66 +1

Underwater-Communication design files

The KiCad project lives in the Frrrrrrrrrank/Underwater-Communication repository on GitHub; these links point at the commit this page was built from.

Underwater-Communication: common questions

What microcontroller does the Underwater-Communication use?

The Underwater-Communication is built around the STM32G474RBTx, from the STM32 family.

How big is the Underwater-Communication PCB?

The Underwater-Communication measures 80 × 80 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Underwater-Communication?

211 components, from 63 distinct parts. The full bill of materials is listed on this page.

Where can I download the Underwater-Communication design files?

From the Frrrrrrrrrank/Underwater-Communication repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Underwater-Communication design in my own project?

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

Can I test firmware for the Underwater-Communication 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.

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