Mux Shield II - I/O expander for Arduino

The overlay solves the problem of limitations in the use of multiple overlays compatible with Arduino UNO R3. The board allows you to connect different shields without their mutual influence on each other (eg without conflict on the UART bus or GPIO lines). Extension dedicated for Arduino Mega and ADK devices. DFRobot DFR0256

Adafruit 493 - LoL Shield BLUE - A charlieplexed LED matrix kit for the Arduino - 1.5

e-Paper display controller module with a standard Arduino connector. It has a built-in MX25R6435F Flash memory with a capacity of 8 MB and a 24-pin FFC connector dedicated to e-Paper displays. Waveshare e-Paper Shield (B)

Adafruit 1141 - Adafruit Assembled Data Logging shield for Arduino

Base Shield V2 is an extension for tiles with an Arduino shield connector, it has a Grove connector, which can be connected to Grove-compatible modules / sensors. Seeedstudio 103030000

(DFR0144) Relay Shield for Arduino V2.1

The shield allows for easier connection of cables to the Arduino UNO R3 board. Thanks to the screw connectors, it is possible to fast and secure the cable, goldpin connectors allow you to easily connect the servo, and the built-in female connectors allow you to put additional Arduino shields

Gravity: Heart Rate Monitor Sensor is a sensor used to measure heart activity. Adapted for easy use with Arduino. SparkFun SEN0213

The expansion module (shield) is designed for Arduino boards. It enables easy connection of 16x32 and 32x32 matrix displays. Requires self-assembly. Adafruit 2601

Arduino Shield - MEGA Proto KIT Rev3

The Bees shield is compatible with Arduino boards such as UNO R3 and Leonardo it has a large prototyping shield giving you plenty of space to experiment and add extra components to your project. Thanks to its uniform interface, there are a huge number of devices compatible with the xBee socket: xBee, WiFi xBee, Bluetooth Bee, zigBee, etc. DFR0210

Cap for Xbee and Arduino. It has been designed for wireless sensor networks such as WiFi, Bluetooth 2.0 / 4.0 and Zigbee. DFRobot DFR0015

Development kit for EdgeLock SE050 Plug & Trust products for Arduino. The implementation approach to the SE050 family of products facilitates the development of secure IoT applications. NXP OM-SE050ARD

Wixel Shield for Arduino

Expansion module with a joystick and buttons, resembling a gamepad. Enables the connection of the nRF24L01 radio module, Nokia 5110 display, Bluetooth module, I2C devices and Arduino kit. modKeyPad

This LC8822-2020 module with eight addressable RGB LEDs allows you to create lighting effects, animations, and visual signals in electronics projects. Thanks to I2C/Qwiic communication and an STM32C011 microcontroller, integration with the Arduino UNO R4 WiFi or Nano is quick and easy, and the I2C address can be easily changed programmatically. The module is fully compatible with the Arduino Cloud and the Modulino library, allowing you to launch your first effects in minutes. Arduino ABX00109