HardLabs

Monolith mini

luftaquila·monolith·device/hardware/monolith-mini/monolith-mini.kicad_pcb

Monolith mini PCB layout, top view — open source ESP32 board by luftaquila

About the Monolith mini PCB

Monolith mini is an open source ESP32 PCB design by luftaquila, published on GitHub under the Custom license license. It is a 2-layer board measuring 51.6 × 74.4 mm, with 58 components from 33 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N4, from the ESP32 family. Other key parts include the SN65HVD230, TPS5430DDA, MPU-6500, AMS1117-3.3 and LMV321. By type, the board carries 22 capacitors, 19 resistors, 7 ICs, 4 diodes, 2 transistors and 1 crystal.

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

From the project

DIY wireless real-time datalogging platform for Student Formula and Baja.

DIY wireless data logging platform for Student Formula and Baja.

📡 Full wireless support Real-time telemetry Download recorded data Transmit User Events Transmit CAN messages Configure device (e.g. CAN bit rate)

📀 Up to 100 Hz data rate with various signals 1x CAN 2.0(A/B) 1x External GPS 1x Internal 6-axis Accelerometer & Gyroscope 4x Digital input channels 6x Analog input channels 1x Power supply voltage sensor 1x Chip temperature sensor

Monolith mini, from the project README
From the project README

Main components on the Monolith mini

ESP32-S3-WROOM-1-N4SN65HVD230TPS5430DDAMPU-6500AMS1117-3.3LMV321PCF8563T

Monolith mini bill of materials (BOM)

58 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1-N4
U2
1
SN65HVD230
U4
1
TPS5430DDA
U5
1
MPU-6500
U7
1
AMS1117-3.3
U8
1
LMV321
U10
1
PCF8563T
U11
2
SS8050
Q1, Q2
1
FC135
Y1
1
C393941
Micro_SD_Card
J13
1
CR1220-2
CR1220
BT1
1
C2286
RED
D3
1
SS34
D6
1
H5VLD3B
D9
1
BAT54C
D12
1
22UH
22uH
L1
2
10UF
10uF
C1, C21
7
0.1UF
0.1uF
C4, C11, C18, C19, C29, C38, C39
1
1UF
1uF
C5
1
10UF
10uF
C6
Show 13 more
QtyPartRefs
2
10NF
10nF
C9, C20
4
47UF
47uF
C12, C15, C16, C17
1
22UF
22uF
C23
2
20PF
20pF
C24, C25
2
22NF
22nF
C26, C37
11
10K
10k
R5, R13, R14, R15, R18, R20, R21, R24 +3
1
1k
R8
1
120
R19
1
3.3K
3.3k
R26
1
15K
15k
R29
1
430
R30
2
4.7K
4.7k
R33, R37
1
100
R34

Monolith mini design files

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

Monolith mini: common questions

What microcontroller does the Monolith mini use?

The Monolith mini is built around the ESP32-S3-WROOM-1-N4, from the ESP32 family.

How big is the Monolith mini PCB?

The Monolith mini measures 51.6 × 74.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Monolith mini?

58 components, from 33 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 Monolith mini design files?

From the luftaquila/monolith 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 Monolith mini design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Monolith mini 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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