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Dory

MATE-Leviathan·dory

Dory PCB layout, top view — open source ESP32 board by MATE-Leviathan

About the Dory PCB

Dory is an open source ESP32 PCB design by MATE-Leviathan, published on GitHub. It is a 4-layer board measuring 64 × 64 mm, with 62 components from 35 distinct parts.

Its main chip is the ESP32-S3-WROOM-1U, from the ESP32 family. Other key parts include the TPSM863252. By type, the board carries 27 resistors, 14 capacitors, 8 connectors, 6 diodes, 3 ICs and 1 transistor.

It belongs with the robotics & motion, rf & radio and iot & wireless designs in this gallery.

From the project

Overenginnered Solution for Float Electronics

A custom control and power distribution board for NCSSM Morganton Robotics.

On the robot, too many things were being connected with loose jumper wires, splitters, adapters, and one-off harnesses. It worked, but it was annoying to build, annoying to trace, and even more annoying to debug when something came loose. Every extra wire was another failure point, and every repair meant spending time figuring out which connection had moved instead of working on the robot.

Dory, from the project README
From the project README

Main components on the Dory

ESP32-S3-WROOM-1UTPSM863252

Dory bill of materials (BOM)

62 components, 35 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1U
U1
2
TPSM863252
U2, U3
1
AO3400A
Q1
1
Batt
J1
1
Switch
J2
1
USB_C
J3
2
I2C
J4, J5
1
CONN_01X03
Conn_01x03
J6
1
CONN_01X05
Conn_01x05
J7
1
Light
J8
2
SW_Push
BOOT1, ENABLE1
1
CPT-9019A-SMT
CPT-9019A-SMT-TR
LS1
1
BATT
D1
1
3V3
D2
1
5V
D3
3
ESDS314
D4, D5, D6
1
1u
C1
2
10U
10u
C2, C3
1
22U
22u
C4
4
100N
100n
C5, C6, C7, C9
Show 15 more
QtyPartRefs
1
10N
10n
C8
2
22P
22p
C10, C11
2
33U
33u
C12, C13
1
470U
470u
C14
8
10K
10k
R1, R4, R5, R23, R24, R25, R26, R27
5
4K7
4k7
R2, R15, R16, R21, R22
1
28K7
28k7
R3
2
100K
100k
R6, R8
2
220K
220k
R7, R13
2
5K1
5k1
R9, R10
1
135K
135k
R11
2
30K
30k
R12, R14
2
1k
R17, R20
1
2K2
2k2
R18
1
0
R19

Dory design files

The KiCad project lives in the MATE-Leviathan/dory repository on GitHub; these links point at the commit this page was built from.

Dory: common questions

What microcontroller does the Dory use?

The Dory is built around the ESP32-S3-WROOM-1U, from the ESP32 family.

How big is the Dory PCB?

The Dory measures 64 × 64 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Dory?

62 components, from 35 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 Dory design files?

From the MATE-Leviathan/dory 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 Dory design in my own project?

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

Can I test firmware for the Dory 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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