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Hardware

rompasaurus·dilder·hardware-design/examples/03-ducky-board-epaper/hardware.kicad_pcb

Hardware PCB layout, top view — open source ESP32 board by rompasaurus

About the Hardware PCB

Hardware is an open source ESP32 PCB design by rompasaurus, published on GitHub. It is a 2-layer board measuring 34.8 × 65.9 mm, with 95 components from 43 distinct parts.

Its main chip is the ESP32-S3, from the ESP32 family. Other key parts include the W25Q128JVS, MCP73831-2-OT and AMS1117-3.3. By type, the board carries 40 capacitors, 27 resistors, 6 diodes, 5 connectors, 4 ICs and 4 inductors.

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

From the project

This project is a custom-designed breakout board for the ESP32-S3 chip, created using KiCad 9. The board features an e-ink display (gdem0154z91 from good display) native USB-C programming support, and includes an integrated Li-Ion battery charger,

This project is a custom-designed breakout board for the ESP32-S3 chip, created using KiCad 9. The board features an e-ink display (gdem0154z91 from good display) native USB-C programming support, and includes an integrated Li-Ion battery charger,

Used for both power input and firmware flashing

Integrated charger IC with status indicators

Supports single-cell Li-Ion/LiPo batteries

Main components on the Hardware

ESP32-S3W25Q128JVSMCP73831-2-OTAMS1117-3.3

Hardware bill of materials (BOM)

95 components, 43 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3
U1
1
W25Q128JVS
U2
1
MCP73831-2-OT
U3
1
AMS1117-3.3
U4
1
AO3401A
Q1
1
AO3400A
Q3
1
C32346
32.768 kHz
Y1
1
C5261125
40MHz(10ppm)
Y2
1
USB_C_RECEPTACLE_USB2.0_14P
USB_C_Receptacle_USB2.0_14P
J1
1
CONN_01X02_PIN
Conn_01x02_Pin
J2
2
CONN_01X18_PIN
Conn_01x18_Pin
J3, J5
1
AFC07-S24FCC-00
P4
1
Antenna
AE1
1
C318884
BTN
BTN1
1
15PF
15pF
DNP1
1
Flash
Flash1
1
Reset
Reset1
2
LED
D1, D3
4
SS14
D4, D5, D6, D7
1
2NH
2nH
L3
Show 23 more
QtyPartRefs
1
10UH
10uH
L4
1
DNP
L5
1
4.7NH
4.7nH
L6
10
10UF
10uF
C2, C3, C6, C7, C8, C16, C17, C20 +2
4
12PF
12pF
C4, C33, C37, C38
8
0.1UF
0.1uF
C10, C11, C15, C18, C19, C22, C32, C35
3
1UF
1uF
C13, C26, C39
1
DNP
C14
4
1UF
1uF
C29, C30, C34, C41
1
15PF
15pF
C31
1
10NF
10nF
C40
8
4.7UF
4.7uF
C48, C49, C50, C51, C52, C53, C54, C55
1
2K
R1
2
33R
R2, R18
6
10K
R3, R4, R21, R22, R33, R35
2
200K
R12, R19
2
5.1K
R14, R17
1
100K
R20
6
C17168
0R
R23, R26, R27, R28, R29, R30
2
470R
R24, R25
1
DNP
R31
2
2.2R
R34, R37
2
C22936
1R
R36, R38

Hardware design files

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

Hardware: common questions

What microcontroller does the Hardware use?

The Hardware is built around the ESP32-S3, from the ESP32 family.

How big is the Hardware PCB?

The Hardware measures 34.8 × 65.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hardware?

95 components, from 43 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 Hardware design files?

From the rompasaurus/dilder 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 Hardware design in my own project?

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

Can I test firmware for the Hardware 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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