HardLabs

LongCat

nabeellagi·LongCat·PCB/board/board.kicad_pcb

LongCat PCB layout, top view — open source ESP32 board by nabeellagi

About the LongCat PCB

LongCat is an open source ESP32 PCB design by nabeellagi, published on GitHub. It is a 4-layer board measuring 49 × 119.8 mm, with 37 components from 22 distinct parts.

Its main chip is the ESP32-C6-WROOM-1, from the ESP32 family. Other key parts include the LM1117MP-3.3 and USBLC6-2SC6. By type, the board carries 8 switches, 8 resistors, 7 capacitors, 4 diodes, 3 ICs and 2 connectors.

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

From the project

Custom Console

A custom ESP32-C6 retro game console + fox-themed powerbank, built from scratch. By Nabeel — 18, Indonesia

Long Cat is a handheld retro game console built around a custom ESP32-C6 PCB, put inside a 3D-printed enclosure featuring a long, stoopid cat on the back. It has a 1.3" OLED screen, 5 interface buttons, and a passive buzzer.

FoxCharge is its companion: a fox-themed powerbank with its own custom PCB, and a "Charging Social Battery" label on the back — totally relateable.

LongCat, from the project README
From the project README

Main components on the LongCat

ESP32-C6-WROOM-1LM1117MP-3.3USBLC6-2SC6

LongCat bill of materials (BOM)

37 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C6-WROOM-1
U1
1
LM1117MP-3.3
U3
1
USBLC6-2SC6
U4
1
MMBT2222A
Q1
1
Pin 2x3
J1
1
USB_C_Receptacle_USB2.0_16P
J2
1
1207-P6.5MM
XHXDZ(兴华鑫)
BUZZER1
1
Polyfuse 1A
F1
3
SW_SPST
SW1, SW2, SW3
5
SW_Push
SW4, SW5, SW6, SW7, SW8
1
HS13L03W2C01
HS(汉昇)
OLED1
1
1N5817
D1
3
ESD9B3.3
D2, D3, D5
1
BLM21PG220
FB1
1
10u
C1
2
100n
C2, C5
2
1u
C3, C4
2
22u
C6, C7
3
10K
R1, R2, R3
2
5.1K
R4, R5
Show 2 more
QtyPartRefs
1
1K
R6
2
2K2
R7, R8

LongCat design files

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

LongCat: common questions

What microcontroller does the LongCat use?

The LongCat is built around the ESP32-C6-WROOM-1, from the ESP32 family.

How big is the LongCat PCB?

The LongCat measures 49 × 119.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the LongCat?

37 components, from 22 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 LongCat design files?

From the nabeellagi/LongCat 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 LongCat design in my own project?

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

Can I test firmware for the LongCat 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.

Similar boards