HardLabs

Transponder-12.0.1

peterantypas·maiana·latest/CAD/Board-12.0.1/transponder-12.0.1.kicad_pcb

Transponder-12.0.1 PCB layout, top view — open source STM32 board by peterantypas

About the Transponder-12.0.1 PCB

Transponder-12.0.1 is an open source STM32 PCB design by peterantypas, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 90.4 × 25 mm, with 115 components from 87 distinct parts.

Its main chip is the STM32L412K8U6, from the STM32 family. Other key parts include the LDFPVR, AP3211KTR-G1, L76-M33, PSA4-5043+ and DMN63D8LDW-7. By type, the board carries 39 capacitors, 19 test points, 16 resistors, 15 inductors, 13 ICs and 3 transistors.

From the project

MAIANA™ is the first Open Source AIS transponder. It proudly raises an extra long middle finger to the marine electronics industry, government overregulation and everything else that gets in the way of innovation in this space.

This directory contains Eagle CAD files as well as schematic PDFs and Gerber exports for board fabrication.

The board stackup is good enough for either OSH Park 4-layer, or JLCPCB 4-layer with controlled impedance (JLC2313).

Revision 11.5.2 does away with the (hard to source) regulator from ST and replaces it with a Zener + NPN combination that delivers about 8.5V to the PA under load.

Main components on the Transponder-12.0.1

LDFPVRAP3211KTR-G1L76-M33PSA4-5043+DMN63D8LDW-7STM32L412K8U6AP63205WUAFT05MS003NT1SKY13330-397LFD3V3X8U9LP38101575AT43A0040ESI4463

Transponder-12.0.1 bill of materials (BOM)

115 components, 87 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LDFPVR
IC1
1
AP3211KTR-G1
Si4460
U1
1
L76-M33
Si4460
U2
1
PSA4-5043+
U3
1
DMN63D8LDW-7
L76L-M33
U4
1
STM32L412K8U6
U5
1
AP63205WU
U6
1
AFT05MS003NT1
24LC01BT/OT
U7
1
SKY13330-397LF
U8
1
D3V3X8U9LP3810
SI1926DL-T1-E3
U9
1
1575AT43A0040E
SI1926DL-T1-E3
U10
1
SI4463
TB0436A
U11
1
SI4463
NCP163ASN330T1G
U12
1
DMP3099L-7
AFT05MS004NT1
Q1
2
AO3401A
Q2, Q7
2
ECS-300-10-33B-CKM-TR
Y1, Y2
1
Conn_ARM_JTAG_SWD_10
J2
1
CON-SMA-EDGE-S
J3
1
RJ-82A86MMNL
J4
1
1575AT43A0040001E
AE1
Show 67 more
QtyPartRefs
1
D3V3X8U9LP3810-7
CR1
1
~
TP1
18
~
TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9 +10
1
BZT52C3V6T-7
SMBJ16CA
D1
1
SMBJ16CA-13-F
BAT54WS
D3
1
250MA/100V
BAT54WS
D4
1
47NH
470nH
L1
1
4.7UH
200nH
L2
1
36NH
200nH
L3
1
2.2UH
2.2uH
L4
1
470NH
13nH
L5
1
130NH
39nH
L6
1
100NH
20nH
L7
1
270NH
470nH
L8
1
18NH
470nH
L9
1
22NH
47nH
L10
1
56NH
68nH
L11
1
4.7UH
22uH
L12
1
10NH
5.6nH
L14
2
180nH
L15, L16
1
10UF
2pF
C1
1
22NF
91pF
C2
2
2.2UF
0.1uF
C3, C34
1
7.5pF
C4
1
22NF
13pF
C5
1
22UF
13pF
C6
1
470PF
2.2uF
C7
1
91PF
100pF
C8
1
3.3PF
0.1uF
C9
1
3.3PF
2.2uF
C10
1
22NF
0.1uF
C11
1
2.2NF
100pF
C12
1
22NF
470pF
C13
1
22NF
110pF
C14
1
91PF
36pF
C15
1
22NF
2.2nF
C16
1
91PF
110pF
C17
1
2.2NF
470pF
C18
2
22nF
C19, C31
1
470pF
C20
1
470PF
20pF
C21
1
20PF
16pF
C22
1
16PF
2.2uF
C23
2
24PF
2.2uF
C24, C25
1
2.2uF
C26
2
0.1uf
C27, C35
2
22uF
C28, C38
1
2.2NF
10uF
C29
1
47PF
2.2uF
C30
1
2.2UF
4pF
C32
1
2.2pF
C33
1
39PF
7.5pF
C36
1
47PF
2pF
C37
1
56PF
2.2uF
C39
2
1k1
R1, R17
1
1K1
10k
R2
1
10K
3k3
R3
1
1K1
22R
R4
1
10K
47k
R5
1
10K
10k
R6
1
47k
R9
1
100R
10k
R10
1
2K4
10k
R11
2
10K
100R
R12, R16
1
1K1
100R
R13
2
100R
R14, R15
1
10K
1k1
R18

Transponder-12.0.1 design files

The KiCad project lives in the peterantypas/maiana repository on GitHub; these links point at the commit this page was built from.

Transponder-12.0.1: common questions

What microcontroller does the Transponder-12.0.1 use?

The Transponder-12.0.1 is built around the STM32L412K8U6, from the STM32 family.

How big is the Transponder-12.0.1 PCB?

The Transponder-12.0.1 measures 90.4 × 25 mm, has 4 copper layers and is 1.604 mm thick.

How many components are on the Transponder-12.0.1?

115 components, from 87 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 Transponder-12.0.1 design files?

From the peterantypas/maiana 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 Transponder-12.0.1 design in my own project?

Yes, under the terms of its GPL-3.0 license, which peterantypas chose for the repository.

Can I test firmware for the Transponder-12.0.1 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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