HardLabs

MainBoard

meawoppl·bp-test·boards/mainboard-reference/MainBoard.kicad_pcb

MainBoard PCB layout, top view — open source ESP32 board by meawoppl

About the MainBoard PCB

MainBoard is an open source ESP32 PCB design by meawoppl, published on GitHub. It is a 2-layer board measuring 139.7 × 63.5 mm, with 245 components from 46 distinct parts.

Its main chip is the ESP32-S2FH4, from the ESP32 family. Other key parts include the ICE40UP5K-SG48I, TPS62160DGKR, TLV75512PDBVR, CRYSTAL-OSC and NCV8161ASN330T1G. By type, the board carries 97 resistors, 67 diodes, 39 capacitors, 16 transistors, 12 ICs and 4 inductors.

From the project

v1: first 10 ESP32 + FPGA modules ordered — exact fabrication files and checksums preserved by Git tag v1.

v1: first 10 ESP32 + FPGA modules ordered — exact fabrication files and checksums preserved by Git tag v1.

Choose a board in the portal using the selector configured in .kicad-pcb.json.

- ESP32 + FPGA module: routed four-layer prototype; current checks and fabrication previews are included. - Original MainBoard: native KiCad import for reference; original Fusion/Eagle exports in source/fusion. - Direction LED tester: existing board and fabrication files described below.

Main components on the MainBoard

ESP32-S2FH4ICE40UP5K-SG48ITPS62160DGKRTLV75512PDBVRCRYSTAL-OSCNCV8161ASN330T1GTXB0101DBVRRGBLEDTS-1185-C-A-A-AMAX-M10S-00BPCB-ANTENNAACO97

MainBoard bill of materials (BOM)

245 components, 46 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S2FH4
ESP32
U1
1
ICE40UP5K-SG48I
ICE40
U2
1
TPS62160DGKR
NCV8161ASN330T1G
U3
1
TLV75512PDBVR
TPS76912DBVR
U4
1
CRYSTAL-OSC
U5
1
NCV8161ASN330T1G
U6
1
TXB0101DBVR
U7
1
RGBLED
U9
1
TS-1185-C-A-A-A
U10
1
MAX-M10S-00B
U11
1
PCB-ANTENNA
U$1
1
ACO97
U$2
16
NMOSFET
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +8
1
C597934
USB4110GFA
J1
2
ANTENNA-SMA-GROUNDEDEDGE_SMA
E1, E2
4
MOUNT-HOLE4.3
H5, H6, H7, H8
3
TPSB1,27
TP20, TP21, TP22
1
FC-B1010RGBT-HG
LED_BLUE
D1
64
LED_BLUE
D2, D4, D5, D6, D7, D8, D10, D11 +56
1
1N4148W
D3
Show 26 more
QtyPartRefs
1
—
D9
1
BLM21AG102
FB1
2
BLM18KG101TN1D
1nH 70mOhm
L1, L2
1
BLM18KG101TN1D
2.2nH
L3
2
GJM1555C1H3R3BB01D
3.3pF
C1, C2
8
22uF
C3, C4, C5, C8, C9, C10, C11, C13
2
CL05C120JB5NNNC
12pF
C6, C7
2
1uF
C12, C18
4
1uF
C14, C15, C16, C17
1
FC0H473ZFTBR24
FC0H473ZFTBR24FC0H473ZFTBR24_KEM
C20
1
47pF
C25
1
4.7uF
C27
1
CL05A105KO5NNNC
1uF
C32
4
CL10A106KP8NNNC
10uF
C33, C34, C43, C45
13
CL05B104KO5NNNC
0.1uF
C35, C37, C38, C39, C40, C41, C42, C44 +5
16
10k
R1, R4, R5, R10, R11, R12, R13, R14 +8
62
—
R2, R6, R7, R8, R9, R15, R16, R17 +54
1
0402WGF0000TCE
0
R3
4
RC0402FR-0710KL
10k
R20, R22, R28, R29
2
1k
R23, R47
3
10k
R48, R98, R99
4
33
R49, R50, R55, R84
1
RC0402FR-07100KL
100KR
R62
1
0402WGF7502TCE
75KR
R64
1
0402WGF2402TCE
24KR
R65
2
5.1k
R96, R97

MainBoard design files

The KiCad project lives in the meawoppl/bp-test repository on GitHub; these links point at the commit this page was built from.

MainBoard: common questions

What microcontroller does the MainBoard use?

The MainBoard is built around the ESP32-S2FH4, from the ESP32 family.

How big is the MainBoard PCB?

The MainBoard measures 139.7 × 63.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MainBoard?

245 components, from 46 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 MainBoard design files?

From the meawoppl/bp-test 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 MainBoard design in my own project?

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

Can I test firmware for the MainBoard 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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