Ethernet and PoE Shield - Ethernet module with W5500 chip for Arduino

Ethernet network module with W5500 chip. It communicates via the SPI interface, it has a built-in TCP/IP stack. There are two Grove connectors with I2C and UART on the board. Seeed Studio 103030021

Shield for STM32 series Nucleo, XNucleo and Arduino series for communication via RS485 and CAN interfaces (CAN is only available for Nucleo and XNucleo plates). Shield is based on MAX3485 and SN65HVD230 systems

DEV-10864 OSHW - PoEthernet Shield

The CAN-BUS Arduino Shield v2.0 can be stacked on an Arduino UNO, Arduino Leonardo or Arduino MEGA board. The shield integrates an MCP2515 CAN-BUS chip on the shield and has a CAN-BUS transceiver function. With an on-board DB9 and CAN-BUS connector you can choose a suitable port according to your host device. There is also an integrated MicroSD socket for data storage. DFR0370

Shield designed for IoT applications with LTE CAT M1/NB-IoT SARA-R4 modem. The board is compatible with Arduino, allows you to add communication via cellular networks to Arduino boards. SparkFun CEL-14997

A USB host module that contains all the digital logic and analog circuitry necessary to implement a USB peripheral or host controller using the SPI interface. SparkFun DEV-21247

Shield with LTE CAT M1/NB-IoT SARA-R4 modem. Compatible with Arduino. Hologram SIM card included. SparkFun CEL-15087

 Introducing Adafruit FONA 808 GSM + GPS Shield, an all-in-one cellular phone module with that lets you add location-tracking, voice, text, SMS and data to your project, in Arduino shield format for easy use. Adafruit 2636

Module with Himax HM-01B0 camera and LoRa communication dedicated to Arduino Portenta H7 boards. Arduino ASX00026

UART-RS232 converter module. It enables communication of Arduino boards with industrial modules. DFRobot DFR0258

KAmodNFC is an expansion board with M24LR64E-R chip – dynamic tag with 64kb EEPROM memory and dual communication interface (I2C/RF). On board is placed also signalization of energy harvesting function, which is in M24LR64E-R chip embedded.

A wireless overlay designed for Arduino tiles. Equipped with a connector compatible with Xbee modules and a microSD card slot. Arduino A100065

Expansion board based on the Wiznet W5200 Ethernet chip. It allows you to easily connect the Arduino to the Ethernet network. DFRobot DFR0272

NFC module designed for Arduino. Meets the standards of reader mode, P2P mode and card emulation mode. The board has an integrated RF antenna. NXP OM5578/PN7150ARDM

Multifunctional expander (shield) for NUCLEO and Arduino equipped with Bluetooth 2.0+EDR (HC-05) interface, MEMS 3DoF LIS35, LED-RGB, joystick and analog STLM20 temperature sensor developed and produced by KAMAMI.

UART-RS485 converter module. It enables communication of Arduino boards with industrial modules. DFRobot DFR0259