HardLabs

Conchodytes

mornepousse·Conchodytes·hardware/pcb/conchodytes.kicad_pcb

Conchodytes PCB layout, top view — open source ESP32 board by mornepousse

About the Conchodytes PCB

Conchodytes is an open source ESP32 PCB design by mornepousse, published on GitHub. It is a 4-layer board measuring 39 × 81.6 mm, with 64 components from 38 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the PMW3389, NRF24L01_BREAKOUT, TP4056-42-ESOP8, HT7833 and DW01A. By type, the board carries 28 resistors, 14 capacitors, 8 ICs, 4 switches, 3 connectors and 2 transistors.

It belongs with the iot & wireless and keyboards designs in this gallery.

From the project

Sleeper mouse: a wireless PMW3360 PCB inside a Logitech M100/M90 shell, talking to the same KaSe dongle as the Niphargus keyboard

The mouse runs the KeSp firmware (role MOUSE: PMW3389, three clicks, wheel, HID relayed to the dongle's slot 2). Since 2026-09-21 its board lives here, not in the firmware repository:

- boards/conchodytes/ — board.h (pinout, netlist-checked), sdkconfig.defaults, testpins.c (the pinout contract); - firmware/ — the KeSp firmware as a git submodule, pinned on a release (git submodule update --init); - .github/workflows/firmware.yml — calls the firmware's reusable workflow: every push builds conchodytes.bin (+ full.bin), a v tag publishes a release here.

Main components on the Conchodytes

PMW3389ESP32-S3-WROOM-1NRF24L01_BREAKOUTTP4056-42-ESOP8HT7833DW01AUSBLC6-2SC6LDO 2V0

Conchodytes bill of materials (BOM)

64 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PMW3389
U2
1
ESP32-S3-WROOM-1
U6
1
NRF24L01_BREAKOUT
NRF24L01_Breakout
U8
1
TP4056-42-ESOP8
U18
1
HT7833
U20
1
DW01A
U23
1
USBLC6-2SC6
U54
1
LDO 2V0
U100
1
AO3407
Q2
1
FS8205
Q4
1
CONN_02X03_ODD_EVEN
Conn_02x03_Odd_Even
J1
1
Battery
J10
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J48
1
NEPHARGUS_10MM_CU
nephargus_10mm_Cu
HS1
1
photodetecteur
LQ1
1
Left click
SW1
1
Right Click
SW2
1
Middle click
SW3
1
C431540
SW_SPDT
SW54
1
IR encodeur
LD1
Show 18 more
QtyPartRefs
1
LED
D49
1
SS14
D52
3
100NF
100nF
C1, C8, C21
2
1UF
1uF
C3, C27
5
10UF
10uF
C11, C20, C24, C26, C29
3
100NF
100nF
C100, C101, C102
1
1UF
1uF
C103
2
10K
10k
R2, R34
7
100
R16, R18, R30, R36, R39, R41, R70
1
100K
100k
R60
2
1k
R62, R73
2
1M
R64, R67
1
2K4
2k4
R68
2
5K1
5k1
R90, R92
8
10K
10k
R100, R103, R105, R106, R107, R108, R109, R110
1
16
R101
1
820
R102
1
0
R104

Conchodytes design files

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

Conchodytes: common questions

What microcontroller does the Conchodytes use?

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

How big is the Conchodytes PCB?

The Conchodytes measures 39 × 81.6 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Conchodytes?

64 components, from 38 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 Conchodytes design files?

From the mornepousse/Conchodytes 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 Conchodytes design in my own project?

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

Can I test firmware for the Conchodytes 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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