Arduino Ethernet Shield R3 with micro SD connector - Assembled

Arduino shield based on the Wiznet W5100 Ethernet chip, supporting TCP and UDP with up to four simultaneous sockets. Includes a micro SD card slot; compatible with the Arduino Ethernet library.

Logical pinout · physical placement not verified

ICSP MOSIICSP header
SPI MOSI connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header. Arduino documentation identifies the Ethernet Shield as communicating over SPI.
Type · SPI
ICSP MISOICSP header
SPI MISO connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
Type · SPI
ICSP SCKICSP header
SPI clock connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
Type · SPI
D10Arduino digital pin 10
Chip select for the W5100 Ethernet controller on the Arduino Ethernet Shield.
Type · GPIO
D4Arduino digital pin 4
Chip select for the on-board microSD card interface on the Arduino Ethernet Shield.
Type · GPIO
5VArduino power header
5V power rail from the host Arduino shield headers.
Type · PowerVoltage · 5V
GNDArduino power header
Ground return through the Arduino shield headers.
Type · GroundVoltage · 0V
RESETArduino shield reset pin
Reset line passed through the Arduino shield header.
Type · Control

Pin	Position	Type	Function	Voltage
ICSP MOSI	ICSP header	SPI	SPI MOSI connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header. Arduino documentation identifies the Ethernet Shield as communicating over SPI.
ICSP MISO	ICSP header	SPI	SPI MISO connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
ICSP SCK	ICSP header	SPI	SPI clock connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
D10	Arduino digital pin 10	GPIO	Chip select for the W5100 Ethernet controller on the Arduino Ethernet Shield.
D4	Arduino digital pin 4	GPIO	Chip select for the on-board microSD card interface on the Arduino Ethernet Shield.
5V	Arduino power header	Power	5V power rail from the host Arduino shield headers.	5V
GND	Arduino power header	Ground	Ground return through the Arduino shield headers.	0V
RESET	Arduino shield reset pin	Control	Reset line passed through the Arduino shield header.

Logical pinout · physical placement not verified

Pin details

8 connections

ICSP MOSI
SPI MOSI connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header. Arduino documentation identifies the Ethernet Shield as communicating over SPI.
SPI
ICSP header
ICSP MISO
SPI MISO connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
SPI
ICSP header
ICSP SCK
SPI clock connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
SPI
ICSP header
D10
Chip select for the W5100 Ethernet controller on the Arduino Ethernet Shield.
GPIO
Arduino digital pin 10
D4
Chip select for the on-board microSD card interface on the Arduino Ethernet Shield.
GPIO
Arduino digital pin 4
5V
5V power rail from the host Arduino shield headers.
PowerVoltage · 5V
Arduino power header
GND
Ground return through the Arduino shield headers.
GroundVoltage · 0V
Arduino power header
RESET
Reset line passed through the Arduino shield header.
Control
Arduino shield reset pin

Start wiring

Ethernet · UART · SPI · Shield

Confirm the data interface matches your host board.

Module pins: 5V, GND, ICSP MOSI, ICSP MISO, ICSP SCK, D10, D4. Schematik maps them to your board in the app.

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