Schematik raised$4.6Mto help anyone build hardware with AI$4.6MIL PRE-SEED ANNOUNCEMENT
SCHEMATIKSCHEMATIK
GuidesPartsBlogCompanyDownload
GuidesPartsBlogCompanyDownload
SCHEMATIK

Built with love in Europe | For makers everywhere

Product

  • Home
  • Try Schematik
  • Download

Resources

  • Build guides
  • Blog
  • Press
  • Information for AI

Compare

  • Schematik or Fritzing
  • Schematik or Tinkercad
  • Schematik or Wokwi
  • Schematik or Claude Code

Company

  • Company
  • Jobs
  • Privacy
  1. Parts
  2. /Wireless & comms
  3. /Wired networking

Arduino Ethernet Shield R3 with micro SD connector - Assembled

OverviewPinoutWiringAlternatesRelated groups
Arduino Ethernet Shield R3 with micro SD connector - Assembled — Adafruit — 201

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.

Offers

  • Adafruit$45.00

Offers

  • Adafruit$45.00

Pinout

  • 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 · spi
  • D4Arduino digital pin 4

    Chip select for the on-board microSD card interface on the Arduino Ethernet Shield.

    Type · spi
  • 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 · digital io
PinPositionTypeFunctionVoltage
ICSP MOSIICSP headerspiSPI 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 MISOICSP headerspiSPI MISO connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
ICSP SCKICSP headerspiSPI clock connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
D10Arduino digital pin 10spiChip select for the W5100 Ethernet controller on the Arduino Ethernet Shield.
D4Arduino digital pin 4spiChip select for the on-board microSD card interface on the Arduino Ethernet Shield.
5VArduino power headerpower5V power rail from the host Arduino shield headers.5V
GNDArduino power headergroundGround return through the Arduino shield headers.0V
RESETArduino shield reset pindigital ioReset line passed through the Arduino shield header.

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.

Wired comms

115 other options

W5100/W5500 Ethernet shields, LAN8720 RMII PHY boards, MAX3243 RS-232 level shifters, isolated USB-to-RS485 converters, CAN FD bridges, and passive or active PoE injectors and splitters.

View all 115
  • 8-Channel Isolated Analog Data Acquisition Module visual preview

    8-Channel Isolated Analog Data Acquisition Module

  • 96Boards UART Adapter visual preview

    96Boards UART Adapter

  • Adafruit RS-232 Full Pinout Level-Shifter Breakout visual preview

    Adafruit RS-232 Full Pinout Level-Shifter Breakout

    $6.95
  • Adafruit RS232 Full Breakout with DE9-M visual preview

    Adafruit RS232 Full Breakout with DE9-M

    $6.95
  • Adafruit RS232 Pal - Two Channel UART to RS-232 Level Shifters visual preview

    Adafruit RS232 Pal - Two Channel UART to RS-232 Level Shifters

  • APC802 Radio Communication Module (2800 meters) visual preview

    APC802 Radio Communication Module (2800 meters)

  • Arduino Ethernet with PoE Module visual preview

    Arduino Ethernet with PoE Module

  • Arduino Opta Lite Micro PLC (Ethernet and USB-C ports) visual preview

    Arduino Opta Lite Micro PLC (Ethernet and USB-C ports)

  • Arduino Opta RS485 Micro PLC (Ethernet, USB-C, RS-485) visual preview

    Arduino Opta RS485 Micro PLC (Ethernet, USB-C, RS-485)

  • Arduino Yún visual preview

    Arduino Yún

  • Breakout for LinkIt Smart 7688 v2.0 visual preview

    Breakout for LinkIt Smart 7688 v2.0

  • Cable Gland - Waterproof RJ-45 / Ethernet connector visual preview

    Cable Gland - Waterproof RJ-45 / Ethernet connector

Related groups

4 groups
MDBT50Q-1M nRF52840 Based BLE Module visual preview
MDBT50Q-P1M nRF52840 BLE Module visual preview
Bluetooth 4.0 Low Energy - BLE Mini visual preview
Bluetooth 4.0 NRF51822 Motherboard (BLE400) visual preview

Bluetooth

BLE 5-era modules (nRF52840, MDBT50Q), XIAO MG24 boards with Matter-over-Thread, Bluefruit UART/SPI bridges, HM-11 serial modules, and BLE sniffers cover different jobs and different hosts.

Wireless & comms · Bluetooth modules · 73 parts

600-6000MHz 5G Antenna visual preview
A7670E LTE Cat-1 HAT for Raspberry Pi visual preview
Adafruit FONA - Mini Cellular GSM Breakout uFL Version visual preview
Adafruit FONA 3G Cellular + GPS Breakout - European (SIM5320E) visual preview

Cellular

Adafruit FONA GSM breakouts, the Gravity Air780EU 4G Cat 1 module, Dragino NB-IoT Shield-B8, Pycom FiPy, Quectel and SIMCom M.2 5G modems, and the RockBLOCK 9603 Iridium modem each target a different network tier.

Wireless & comms · Cellular · 58 parts

4G GNSS-RTK High Precision Positioning Kit (EMEA & Thailand, GPS / GLONASS / Galileo / BDS / QZSS) visual preview
50 Channel GS407 Helical GPS Receiver visual preview
5G/4G/3G/GNSS External Antenna, SMA to IPEX-4 visual preview
A9G GSM/GPRS+GPS Module visual preview

GNSS & GPS

Adafruit Ultimate GPS (PA1616S/PA1616D), NEO-6M and NEO-M9N u-blox breakouts, Gravity GNSS BeiDou boards with I2C/UART, and 4G or LoRa RTK kits — accuracy and constellation requirements split them.

Wireless & comms · GNSS & GPS · 67 parts

2mm 10-Pin XBee Header visual preview
2mm 10-Pin XBee Socket - SMD visual preview
2mm 10pin XBee Socket visual preview
315MHz ASK/OOK Transmitter Module visual preview

LoRa & RF

RFM95W and SX1262 LoRa transceivers, Wio-E5 LoRaWAN modules, SX1302 gateways, Digi XBee mesh radios, 433 MHz ASK serial links, Dragino IoT sensor nodes, and the SDRplay RSP2 wideband SDR receiver.

Wireless & comms · LoRa & RF modules · 95 parts

Parts tray full · 5 max · remove a part to add another