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Psa

Mive82·psa-pcb

Psa PCB layout, top view — open source ESP32 board by Mive82
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About the Psa PCB

Psa is an open source ESP32 PCB design by Mive82, published on GitHub. It is a 4-layer board measuring 65 × 56 mm, with 106 components from 48 distinct parts.

Its main chip is the ESP32-WROOM-32E, from the ESP32 family. Other key parts include the NCP691MN33T2G, TSS463C, MCP2551-I-SN, DS3231MZ and NTS0104GU12_115. By type, the board carries 33 capacitors, 33 resistors, 15 diodes, 7 ICs, 7 connectors and 4 transistors.

It belongs with the power & battery designs in this gallery.

From the project

Peugoet Infotainment Project PCB

NOTE: Unless you have access to a bunch of weird ICs used here, a way to solder 0201 and 0402 components, and willpower to fix the defects listed below, don't bother assemblying the v1.0 version of the PCB.

This is a repository for the PCB used in the second revision of the Peugeot Infotainment Project. For the first revision, see the v0.1 branch.

It used as a base for the VAN communication hardware.

Main components on the Psa

NCP691MN33T2GTSS463CMCP2551-I-SNESP32-WROOM-32EDS3231MZNTS0104GU12_115

Psa bill of materials (BOM)

106 components, 48 distinct parts.

QtyPartRefs
1
NCP691MN33T2G
U2
1
TSS463C
U3
1
MCP2551-I-SN
U4
1
ESP32-WROOM-32E
U6
1
DS3231MZ
U7
2
NTS0104GU12_115
U10, U11
2
NPN
Q1, Q2
2
NMOS
Q5, Q6
1
8MHz
Y2
1
RPi UART Debug LEDs
J1
1
mini iso blue
J2
1
LCD power
J3
1
VAN Debug LEDs
J4
1
UART LED Debug Switch
J5
1
Programming Socket
J7
1
Conn_02x20_Odd_Even
P1
2
C200
MP8759GD1, MP8759GD3
2
EN
SW1, SW2
2
BZX585-B3V3,135
D1, D18
11
LED
D2, D3, D5, D6, D7, D8, D9, D10 +3
Show 28 more
QtyPartRefs
2
VTVS25ASMF-M3-08
D4, D17
2
1.5uH
L12, L14
3
1uF
C1, C10, C11
2
0.1uF
C2, C6
1
0.1uF
C3
2
22 pF
C7, C8
1
100nF
C9
2
100uF
C12, C13
12
22uF
C81, C82, C83, C87, C88, C89, C202, C205 +4
2
220nF
C200, C222
4
100nF
C203, C204, C217, C218
2
220nF
C208, C221
2
1uF
C209, C223
2
10k
R1, R21
1
1M
R2
1
200k
R3
2
10.2k
R4, R17
2
3.2k
R5, R8
5
10k
R6, R7, R12, R20, R22
4
3200
R9, R10, R11, R16
2
4.7k
R13, R19
2
1k
R14, R15
1
1.5k
R18
2
3.3
R107, R120
3
10k
R108, R117, R122
2
41.2k
R109, R121
2
100K
R110, R118
2
5.6k
R111, R119

Psa design files

The KiCad project lives in the Mive82/psa-pcb repository on GitHub; these links point at the commit this page was built from.

Psa: common questions

What microcontroller does the Psa use?

The Psa is built around the ESP32-WROOM-32E, from the ESP32 family.

How big is the Psa PCB?

The Psa measures 65 × 56 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Psa?

106 components, from 48 distinct parts. The full bill of materials is listed on this page.

Where can I download the Psa design files?

From the Mive82/psa-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Psa design in my own project?

The repository has no license, so all rights stay with Mive82. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Psa 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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