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Shard

Ender878·Shard

Shard PCB layout, top view — open source ESP32 board by Ender878
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About the Shard PCB

Shard is an open source ESP32 PCB design by Ender878, published on GitHub under the MIT license. It is a 4-layer board measuring 48.8 × 46.3 mm, with 50 components from 30 distinct parts.

Its main chip is the ESP32-S3, from the ESP32 family. Other key parts include the USBLC6-2P6, TLV76733DRVX and W25Q128JVS. By type, the board carries 20 capacitors, 12 resistors, 5 ICs, 5 connectors, 4 diodes and 2 inductors.

It belongs with the iot & wireless and dev boards & breakouts designs in this gallery.

From the project

Custom ESP32-S3 development board.

Shard is a simple and open-source ESP32-S3 development board designed for prototyping and embedded development. Featuring a compact form factor with comprehensive GPIO access and high-performance specifications.

- Features - Specifications - Getting Started - Programming - Pinout - Hardware Design - Contributing

- High Performance: ESP32-S3 dual-core processor with WiFi and Bluetooth capabilities - Generous Memory: 16 MB Flash storage - Rich I/O: 21 configurable GPIO pins with UART, SPI, and I2C support - Visual Feedback: Built-in addressable RGB LED (Neopixel) - Flexible Power: Supports…

Shard, from the project README
From the project README

Main components on the Shard

ESP32-S3USBLC6-2P6TLV76733DRVXW25Q128JVS

Shard bill of materials (BOM)

50 components, 30 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3
U1
1
USBLC6-2P6
U2
2
TLV76733DRVX
TLV76733DRVx
U3, U4
1
W25Q128JVS
U5
1
40MHZ
Crystal_GND24_Small
Y1
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J1
4
CONN_01X08
Conn_01x08
J2, J3, J4, J5
1
~
ANT1
2
SS34
D1, D2
1
LED
D3
1
WS2812B
D4
1
2NH
2nH
L1
1
2.4NH
2.4nH
L2
5
1UF
1uF
C1, C3, C9, C13, C15
2
2.2UF
2.2uF
C2, C14
1
10NF
10nF
C4
1
10UF
10uF
C5
1
1UF
1uF
C6
2
0.1UF
0.1uF
C7, C8
4
0.1UF
0.1uF
C10, C11, C12, C16
Show 10 more
QtyPartRefs
2
20PF
20pF
C17, C18
1
3PF
3pF
C19
1
2.7PF
2.7pF
C20
2
5.1K
5.1k
R1, R2
1
220
R3
1
10K
10k
R4
1
100K
100k
R5
5
0
R6, R7, R8, R9, R10
1
22
R11
1
499
R12

Shard design files

The KiCad project lives in the Ender878/Shard repository on GitHub; these links point at the commit this page was built from.

Shard: common questions

What microcontroller does the Shard use?

The Shard is built around the ESP32-S3, from the ESP32 family.

How big is the Shard PCB?

The Shard measures 48.8 × 46.3 mm, has 4 copper layers and is 1.5842 mm thick.

How many components are on the Shard?

50 components, from 30 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 Shard design files?

From the Ender878/Shard 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 Shard design in my own project?

Yes, under the terms of its MIT license, which Ender878 chose for the repository.

Can I test firmware for the Shard 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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