
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.
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 MISO connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
SPI clock connection used by the Ethernet controller and microSD interface through the Arduino ICSP/SPI header.
Chip select for the W5100 Ethernet controller on the Arduino Ethernet Shield.
Chip select for the on-board microSD card interface on the Arduino Ethernet Shield.
5V power rail from the host Arduino shield headers.
Ground return through the Arduino shield headers.
Reset line passed through the Arduino shield header.
| 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 | spi | Chip select for the W5100 Ethernet controller on the Arduino Ethernet Shield. | |
| D4 | Arduino digital pin 4 | spi | 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 | digital io | Reset line passed through the Arduino shield header. |
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.
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.
8-Channel Isolated Analog Data Acquisition Module visual preview8-Channel Isolated Analog Data Acquisition Module
96Boards UART Adapter visual preview96Boards UART Adapter
Adafruit RS-232 Full Pinout Level-Shifter Breakout visual previewAdafruit RS-232 Full Pinout Level-Shifter Breakout
Adafruit RS232 Full Breakout with DE9-M visual previewAdafruit RS232 Full Breakout with DE9-M
Adafruit RS232 Pal - Two Channel UART to RS-232 Level Shifters visual previewAdafruit RS232 Pal - Two Channel UART to RS-232 Level Shifters
APC802 Radio Communication Module (2800 meters) visual previewAPC802 Radio Communication Module (2800 meters)
Arduino Ethernet with PoE Module visual previewArduino Ethernet with PoE Module
Arduino Opta Lite Micro PLC (Ethernet and USB-C ports) visual previewArduino Opta Lite Micro PLC (Ethernet and USB-C ports)
Arduino Opta RS485 Micro PLC (Ethernet, USB-C, RS-485) visual previewArduino Opta RS485 Micro PLC (Ethernet, USB-C, RS-485)
Arduino Yún visual previewArduino Yún
Breakout for LinkIt Smart 7688 v2.0 visual previewBreakout for LinkIt Smart 7688 v2.0
Cable Gland - Waterproof RJ-45 / Ethernet connector visual previewCable Gland - Waterproof RJ-45 / Ethernet connector
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 previewBLE 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 previewAdafruit 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 previewAdafruit 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 previewRFM95W 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