HardLabs

The card

clouds56-mcu·the-card·hardware/the-card.kicad_pcb

The card PCB layout, top view — open source ESP32 board by clouds56-mcu

About the The card PCB

The card is an open source ESP32 PCB design by clouds56-mcu, published on GitHub under the MIT license. It is a 4-layer board measuring 54 × 85.6 mm, with 71 components from 34 distinct parts.

Its main chip is the C2913202, from the ESP32 family. Other key parts include the C5221752, C2655100, C7461849, C2682616 and C382139. By type, the board carries 29 capacitors, 17 resistors, 10 ICs, 4 switches, 4 diodes and 3 transistors.

From the project

The electrical design of the-card, captured in code and emitted as both a KiCad schematic (.kicadsch) and a netlist (.net`). KiCad 10 is installed; the schematic opens in eeschema and is ERC-clean (0 errors).

The electrical design of the-card, captured in code and emitted as both a KiCad schematic (.kicadsch) and a netlist (.net`). KiCad 10 is installed; the schematic opens in eeschema and is ERC-clean (0 errors).

The verifier exports the complete KiCad schematic and compares both the peer set of every component pin and every explicitly named net with the canonicalized SKiDL circuit. The expected v0.2.0 result is 78 components and 292 component pins with identical connectivity across 43 canonical named nets. KiCad ERC has 0 violations.

Main components on the The card

C2913202C5221752C2655100C7461849C2682616C382139C181643988205AC82942C7519

The card bill of materials (BOM)

71 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C2913202
ESP32-S3-WROOM-1-N16R8
U1
1
C5221752
ST25DV04KC-IE8S3
U2
1
C2655100
LSM6DSOTR
U3
1
C7461849
SHT40-BD1B-R2
U4
1
C2682616
MAX17048G+T10
U5
1
C382139
TP4056_C382139
U6
1
C18164398
DW01A_C18164398
U7
1
8205A
HXY MOSFET
U8
1
C82942
ME6211C33M5G-N
U9
1
C7519
USBLC6-2SC6
U10
2
C10487
SI2301CDS-T1-GE3
Q1, Q2
1
C469327
SI1308EDL-T1-GE3
Q3
1
C165948
TYPE-C-31-M-12
J1
1
FH12-24S-0.5SH(55)
J2
1
C295747
S2B-PH-SM4-TB(LF)(SN)
J3
4
C318884
TS-1187A-B-A-B
SW1, SW2, SW3, SW4
1
C527089
WS2812B-MINI
D1
3
C18863
LMBR0530T1G
D2, D3, D4
1
C5339697
XRNR5020-47uH/M 47uH
L1
12
C1525
100nF
C1, C4, C7, C10, C11, C12, C14, C15 +4
Show 14 more
QtyPartRefs
4
C19702
10uF
C2, C5, C6, C13
3
C15849
1uF
C3, C8, C9
2
C1779
4.7uF 25V
C20, C21
7
C28323
1uF 50V
C22, C23, C24, C25, C26, C27, C28
1
DNP 0-22pF C0G/NP0
C29
6
C25744
10k
R1, R2, R8, R11, R12, R17
2
C26083
1M
R3, R15
1
C4137657
300k
R4
2
C25905
5.1k
R5, R6
1
C25879
2.2k
R7
1
C25076
100
R9
1
C11702
1k
R10
2
C25900
4.7k
R13, R14
1
C1854860
2.2
R16

The card design files

The KiCad project lives in the clouds56-mcu/the-card repository on GitHub; these links point at the commit this page was built from.

The card: common questions

What microcontroller does the The card use?

The The card is built around the C2913202, from the ESP32 family.

How big is the The card PCB?

The The card measures 54 × 85.6 mm, has 4 copper layers and is 0.8 mm thick.

How many components are on the The card?

71 components, from 34 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 The card design files?

From the clouds56-mcu/the-card 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 The card design in my own project?

Yes, under the terms of its MIT license, which clouds56-mcu chose for the repository.

Can I test firmware for the The card 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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