HardLabs

Ethernet module

sneakylizard123-4·Ethernet_module·kicad/Ethernet.kicad_pcb

Ethernet module layout, top view — open source board by sneakylizard123-4

About the Ethernet module

Ethernet module is an open source PCB design by sneakylizard123-4, published on GitHub. It is a 4-layer board measuring 50 × 21.4 mm, with 35 components from 19 distinct parts.

Other key parts include the W5500. By type, the board carries 17 capacitors, 11 resistors, 2 connectors, 2 diodes, 1 IC and 1 crystal.

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

From the project

RJ45-to-SPI Ethernet breakout built around the W5500

RJ45-to-SPI Ethernet breakout built around the W5500

This board turns a 4-wire SPI bus into a working 10/100 Ethernet port. A WIZnet W5500 TCP/IP controller talks to a RJ45 jack over SPI, so the microcontroller never has to touch a packet. The Ethernet PHY and the isolation transformer live inside the connector, so there is no line driver, and no magnetics to lay out.

Ethernet module, from the project README
From the project README

Main components on the Ethernet module

W5500

Ethernet module bill of materials (BOM)

35 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
W5500
U1
1
25MHZ
25MHz
X1
1
RJ45_HALO_HFJ11-X2450E-LXXRL
RJ45_Halo_HFJ11-x2450E-LxxRL
J1
1
CONN_01X08
Conn_01x08
J2
2
LED
D1, D2
1
HH-1M1608-121JT
FB1
7
0.1UF
0.1uF
C1, C4, C6, C8, C10, C11, C13
2
10UF
10uF
C2, C3
2
10NF
10nF
C5, C14
1
4.7UF
4.7uF
C7
2
18PF
18pF
C9, C12
2
6.8NF
6.8nF
C15, C17
1
22NF
22nF
C16
1
12.4k 1%
R1
2
1k
R2, R3
4
49.9 1%
R4, R5, R6, R7
1
10R 1%
R8
2
330
R9, R10
1
0
RN1

Ethernet module design files

The KiCad project lives in the sneakylizard123-4/Ethernet_module repository on GitHub; these links point at the commit this page was built from.

Ethernet module: common questions

How big is the Ethernet module?

The Ethernet module measures 50 × 21.4 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Ethernet module?

35 components, from 19 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 Ethernet module design files?

From the sneakylizard123-4/Ethernet_module 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 Ethernet module design in my own project?

The repository has no license, so all rights stay with sneakylizard123-4. Use it as a reference, and ask the author before reusing the design.

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