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Marajoara

machadoleonardo94·lux-et-tenebris·Hardware/Marajoara_PCB/Marajoara_PCB.kicad_pcb

Marajoara PCB layout, top view — open source ESP32 board by machadoleonardo94

About the Marajoara PCB

Marajoara is an open source ESP32 PCB design by machadoleonardo94, published on GitHub. It is a 2-layer board measuring 232 × 182.7 mm, with 91 components from 21 distinct parts.

Its main chip is the ESP32-C3-SUPERMINI, from the ESP32 family. Other key parts include the TP4056. By type, the board carries 34 capacitors, 33 diodes, 16 resistors, 2 ICs, 2 transistors and 1 connector.

It belongs with the displays & leds, power & battery and usb & debug tools designs in this gallery.

From the project

Devkit for LED strips, with wide range of voltage inputs, and options for current limited outputs

Hardware design files for the Lux et Tenebris Devkit - an ESP32-based LED controller development board with integrated OLED display, WS2812B LED channels, and multiple output configurations.

The Lux et Tenebris hardware consists of custom PCB designs created in KiCad, providing a compact platform for controlling addressable LEDs, RGB strips, and other lighting applications. The board integrates power management and some I/O expansion ports.

Marajoara, from the project README
From the project README

Main components on the Marajoara

TP4056ESP32-C3-SUPERMINI

Marajoara bill of materials (BOM)

91 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TP4056
U1
1
ESP32-C3-SUPERMINI
ESP32-C3-Supermini
U2
1
XR5P04
Q1
1
2N7002K
Q2
1
CONN_01X03_SOCKET
Conn_01x03_Socket
J1
1
SW_Push
BT1
1
CONN_01X04_SOCKET
Conn_01x04_Socket
PORT1
1
CONN_01X03_SOCKET
Conn_01x03_Socket
TOUCH1
28
WS2812B
D1, D2, D3, D4, D5, D6, D7, D8 +20
1
SS14
D29
1
C965817
LED_BLUE
D30
1
C84256
LED_RED
D31
2
1N4148W
D32, D33
2
220UF
220uF
C1, C34
2
10U
10u
C2, C10
30
100NF
100nF
C3, C4, C5, C6, C7, C8, C9, C11 +22
3
330
R1, R4, R11
5
2.2K
2.2k
R2, R5, R6, R7, R8
1
C2683384
220mR 1W 1%
R3
6
100K
100k
R9, R10, R12, R13, R14, R15
Show 1 more
QtyPartRefs
1
10K
10k
R16

Marajoara design files

The KiCad project lives in the machadoleonardo94/lux-et-tenebris repository on GitHub; these links point at the commit this page was built from.

Marajoara: common questions

What microcontroller does the Marajoara use?

The Marajoara is built around the ESP32-C3-SUPERMINI, from the ESP32 family.

How big is the Marajoara PCB?

The Marajoara measures 232 × 182.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Marajoara?

91 components, from 21 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 Marajoara design files?

From the machadoleonardo94/lux-et-tenebris 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 Marajoara design in my own project?

The repository has no license, so all rights stay with machadoleonardo94. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Marajoara 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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