HardLabs

DIY Mini Marauder

mkhairyx·DIY_Mini_Marauder·source/KiCad - PCB/DIY_Mini_Marauder/DIY_Mini_Marauder.kicad_pcb

DIY Mini Marauder PCB layout, top view — open source ESP32 board by mkhairyx

About the DIY Mini Marauder PCB

DIY Mini Marauder is an open source ESP32 PCB design by mkhairyx, published on GitHub. It is a 2-layer board measuring 49 × 97 mm, with 54 components from 26 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the MCP73831T-2ACI/OT, CP2104, MIC5219-3.3YM5 and TFT. By type, the board carries 24 resistors, 8 switches, 7 capacitors, 5 ICs, 4 transistors and 2 LEDs.

It belongs with the usb & debug tools designs in this gallery.

From the project

An open source version of JustCallMeKoko's marauder mini with better documentation.

This is an open source version of JustCallMeKoko's marauder mini with better documentation and tutorials on how flash the device after making it.

The reason I made this repository is becaused I have always wanted to have my own marauder mini but it was unavailble and there was no Schematics to be found for it. Only thing I was able to find was the PCB and the Case for it. I reverse engineered the PCB to have a useful schematic that anyone can use to make their own PCB and maybe make changes to it.

DIY Mini Marauder, from the project README
From the project README

Main components on the DIY Mini Marauder

ESP32-WROOM-32MCP73831T-2ACI/OTCP2104MIC5219-3.3YM5TFT

DIY Mini Marauder bill of materials (BOM)

54 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM-32
U1
1
MCP73831T-2ACI/OT
MCP73831T-2ACI_OT
U2
1
CP2104
U3
1
MIC5219-3.3YM5
U4
1
TFT
U5
2
S8050
Q1, Q2
2
AO3401
Q3, Q4
1
S2B-PH-SM4-TB
J1
1
TF-115
CARD1
2
SW_Omron_B3FS
SW1, SW2
1
K3-1296S-E1_C128955
SW3
1
UP
SW5
1
LEFT
SW6
1
CENTER
SW7
1
RIGHT
SW8
1
DOWN
SW9
1
USB_C_Receptacle_USB2.0_16P
USBC1
2
SZYY0603Y
CHG1, PWR1
1
MBR120LSF
D1
3
100nF
C1, C4, C6
Show 6 more
QtyPartRefs
3
4.7uF
C2, C3, C7
1
2.2uF
C5
15
10K
R1, R1_1, R1_2, R1_3, R1_4, R3, R7, R8 +7
6
1K
R2, R2_1, R2_2, R2_3, R4, R6
1
2K
R5
2
5.1k
R-CC1, R-CC2

DIY Mini Marauder design files

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

DIY Mini Marauder: common questions

What microcontroller does the DIY Mini Marauder use?

The DIY Mini Marauder is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the DIY Mini Marauder PCB?

The DIY Mini Marauder measures 49 × 97 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DIY Mini Marauder?

54 components, from 26 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 DIY Mini Marauder design files?

From the mkhairyx/DIY_Mini_Marauder 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 DIY Mini Marauder design in my own project?

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

Can I test firmware for the DIY Mini Marauder 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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