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Mosaic x3

shashwtd·mosaic-x3

Mosaic x3 PCB layout, top view — open source ESP32 board by shashwtd
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About the Mosaic x3 PCB

Mosaic x3 is an open source ESP32 PCB design by shashwtd, published on GitHub. It is a 2-layer board measuring 21 × 128 mm, with 32 components from 25 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AMS1117-3.3 and 74AHCT125. By type, the board carries 9 resistors, 8 capacitors, 5 connectors, 3 ICs, 3 switches and 2 diodes.

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

From the project

Imagine if github contribution chart came to life as a frame which you could hang on your wall for decor. This is mosaic, you plug it in, connect your github account and tadaaa~ you now have a frame that mimicks your github contribution history graph.

Imagine if github contribution chart came to life as a frame which you could hang on your wall for decor. This is mosaic, you plug it in, connect your github account and tadaaa~ you now have a frame that mimicks your github contribution history graph.

- 84 blocks to display the last 12 weeks worth of stats - wifi - a programmable nfc tag for more accessiblity - slim nice frame, designed so you can either hang this with a hanging rope, or using built in hooks behind the frame. - clean white design, looks cool :yay:

Mosaic x3, from the project README
From the project README

Main components on the Mosaic x3

AMS1117-3.3ESP32-S3-WROOM-174AHCT125

Mosaic x3 bill of materials (BOM)

32 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AMS1117-3.3
U1
1
ESP32-S3-WROOM-1
U2
1
74AHCT125
U3
1
P-MOSFET
Q1
1
Conn_01x02
J1
1
USB_C_Receptacle_USB2.0_14P
J2
1
LED_STRIP_HEAD
J3
1
PWR_INJ_1
J4
1
PWR_INJ_2
J5
1
6A
F1
1
SW_SPST
SW1
1
RESET
SW2
1
BOOT
SW3
1
D_Schottky
D1
1
LED_RGBK
D2
1
470uF/16V
C1
2
10uF
C2, C5
1
22uF
C3
3
0.1uF
C4, C7, C8
1
1uF
C6
Show 5 more
QtyPartRefs
2
10k
R1, R2
2
5.1k
R3, R4
1
330
R5
1
100k
R6
3
1k
R7, R8, R9

Mosaic x3 design files

The KiCad project lives in the shashwtd/mosaic-x3 repository on GitHub; these links point at the commit this page was built from.

Mosaic x3: common questions

What microcontroller does the Mosaic x3 use?

The Mosaic x3 is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Mosaic x3 PCB?

The Mosaic x3 measures 21 × 128 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mosaic x3?

32 components, from 25 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 Mosaic x3 design files?

From the shashwtd/mosaic-x3 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 Mosaic x3 design in my own project?

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

Can I test firmware for the Mosaic x3 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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