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Here are solid Arduino shield options (mostly Arduino Uno/Mega R3 footprint compatible), grouped by use:
Connectivity (Ethernet / WiFi / XBee)
- Wired Ethernet (budget): W5100 Ethernet Shield for Arduino (W5100) ($18.80)
- Ethernet + Power over Ethernet: Ethernet and PoE Shield for Arduino - W5500 Chipset (W5500 + PoE) ($52.15)
- WiFi: SparkFun WiFi Shield - ESP8266 (ESP8266 WiFi) ($39.45)
- XBee radio carrier: SparkFun Digi XBee® Arduino Shield - USB-C (Qwiic) (Digi XBee footprint, USB‑C, Qwiic) ($28.20)
Motor control
- Dual DC motors (lighter loads): 2x1A DC Motor Shield for Arduino (2×1A, L293) ($19.58)
- Dual DC motors (more current): 2x2A DC Motor Shield For Arduino (2×2A, L298P) ($24.25)
Prototyping / wiring
- Prototyping + screw terminals (great for robust wiring): Proto-Screwshield (Wingshield) R3 Kit for Arduino (R3, proto area + screw terminals) ($33.20)
Sensors / storage / RFID
- Sensor breakout hub for Mega/Due: Gravity: IO Sensor Shield For Arduino Mega Due (sensor expansion shield) ($17.25)
- SD card add-on (data logging): SD Module (Arduino Compatible) (SD + microSD) ($14.80)
- NFC/RFID: Adafruit PN532 NFC/RFID Controller Shield for Arduino + Extras (13.56MHz PN532 NFC/RFID) ($85.25)
Shield stacking headers (for building/stacking your own shields)
- Full R3 stacking header set: Shield stacking headers for Arduino (R3 Compatible) ($4.80)
- Common header pieces: Arduino Stackable Header - 10 Pin ($2.45), Stackable Female Header Kit For Arduino UNO ($1.05)
Which Arduino board are you using (affects shield fit/pinout)?
What type of shield do you want?
Collections
Showing 21-40 of 82 products · 18 unavailable products hidden
64x64 RGB LED Matrix - 3mm Pitch - 192mm x 192mm
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The 64×64 RGB LED Matrix with 3mm pitch features 4096 bright RGB LEDs in a 192×192mm panel. This high-density display offers a good balance between pixel density and panel size, suitable for indoor signage and video wall applications. This panel uses a non-standard 5-address (ABCDE) multiplexing...
Adafruit Pro Trinket - 3V
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Note: The Pro Trinket's bit-bang USB technique is a legacy approach that may not work reliably with modern operating systems. For new projects, consider an ItsyBitsy or Metro Mini board with native USB support at a comparable price. The Adafruit Pro Trinket 3V is a compact ATmega328P-based mic...
Female Header Pack
This pack of female headers includes two 6-pin headers and two 8-pin headers. This is similar to the header kit that comes with Arduino shields except that the pins are shorter so they don’t stack. These are useful for Arduino compatible boards that don’t come with headers already installed (like...
SparkFun Photon RedBoard
The SparkFun Photon RedBoard, to put it simply, is a WiFi/Microcontroller development board in the Arduino form-factor for the Photon. It’s easy to use, it’s powerful, and it’s connected to the cloud. With the best support, potential, and performance the Photon RedBoard provides you with an IoT d...
Stackable Header - 8 Pin (Extended)
An 8-pin female stackable header with extended legs, designed for stacking Arduino shields and prototyping boards. The extra-long pins pass through one board and connect to the next, making it easy to build multi-layer shield stacks. Standard 0.1-inch (2.54mm) pin spacing ensures compatibility w...
Stackable Header - 8 Pin
An 8-pin female header with extra-long legs, designed for stacking Arduino shields. The extended pins pass through to the board below, allowing multiple shields to be stacked on a single Arduino. Pins are spaced at standard 0.1″ (2.54mm) pitch. Specifications Pin Count – 8 pins, single row Pi...
40 Pin Break Away Male Header- Long Straight-10 Pcs
A pack of 10 long straight male header strips, each with 40 breakable pins at 2.54mm pitch. The extended 10mm pin length allows socket-to-socket connections, and the plastic separator can be repositioned along the pins to suit your application. Snap or cut the strips to any size needed for custo...
mbed Shield
The mbed Shield is an application board designed for the mbed LPC1768 prototyping platform. It brings together CAN, Ethernet, USB, and four standard Grove connectors on a single board, making it easy to connect sensors, actuators, and communication interfaces to your mbed projects. With a standa...
Adafruit Grand Central M4 Express featuring the SAMD51
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The Adafruit Grand Central M4 Express is a powerful development board built around the Microchip ATSAMD51P20 — a 120 MHz Cortex M4 processor with hardware floating point, 1 MB Flash, and 256 KB RAM. In the familiar Arduino Mega form factor, it brings 70 GPIO pins, dual DACs, 15 analog inputs, 8 M...
Adafruit AirLift Shield - ESP32 WiFi Co-Processor
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Give your Arduino project WiFi connectivity with the Adafruit AirLift Shield. This shield uses an ESP32 as a WiFi co-processor, handling all the heavy lifting of network connections and TLS/SSL encryption so your main microcontroller can focus on your application logic. The ESP32 communicates ov...
Crowduino-UNO-ESP8266-V1.1
The Crowduino UNO ESP8266 combines an Arduino UNO-compatible microcontroller with an onboard ESP8266 WiFi module in a single, compact board. Instead of wiring a separate WiFi shield or module, you get integrated wireless connectivity right out of the box. Built around the ATmega328 running at 16...
64x64 RGB LED Matrix Panel with 45 Degree Curb-Cut - 2.5mm Pitch
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The 64×64 RGB LED Matrix Panel with 45° Curb-Cut corners and 2.5mm pitch features 4096 bright RGB LEDs in an ultra-high-density panel. The curb-cut corners are angled at 45°, allowing multiple panels to be assembled into LED video cubes or rectangular enclosures with seamless edges. This panel u...
Turtle: 2WD Arduino Mobile Robot Platform
The Turtle is a compact 2WD mobile robot platform designed for use with Arduino and other microcontroller boards. It comes as a kit with two geared DC motors, rubber wheels, a rear caster ball, an aluminium alloy chassis, and all mounting hardware needed for assembly. The top layer includes a st...
Gravity: Photoelectric Arduino Water Liquid Level Sensor
A photoelectric liquid level sensor that uses optical principles to detect the presence or absence of liquid. With no moving parts, it requires minimal calibration and offers high sensitivity and long service life. The corrosion-resistant polycarbonate probe handles temperatures from −25 °C to 10...
Arduino Motor Shield R3
INTRODUCTION The Arduino Motor Shield is based on L298 (a dual full-bridge driver designed to drive inductive loads such as relays, solenoids, DC and stepping motors). It helps you drive two DC motors with Arduino board as well as control the speed and direction of the ...
Arduino Wireless Proto Shield
INTRODUCTION The Arduino Proto shield allows an Arduino board to communicate wireless using a wireless module. It is based on the Xbee modules from Digi, but can use any module with the same footprint. The module can communicate up to 100 feet indoors or 300 feet outdoors (with line-of...
Bluno Mega 2560 - An Arduino Mega 2560 with Bluetooth 4.0
The Bluno Mega 2560 combines the ATmega2560 microcontroller with an integrated TI CC2540 Bluetooth 4.0 (BLE) module, bringing wireless communication to the Arduino Mega form factor. It supports wireless programming over BLE, Bluetooth HID, iBeacon, and serial pass-through — while remaining fully ...
Gravity: Arduino CO2 Gas Sensor
The Gravity CO2 Gas Sensor uses an MG-811 electrochemical sensing element to detect carbon dioxide concentration in the air. The output voltage decreases as CO2 concentration increases, and an onboard potentiometer lets you set a threshold for a digital on/off signal output. An onboard heating c...
Arduino Portenta H7 Lite Development Board
The Arduino Portenta H7 Lite is a high-performance dual-core development board and the cost-optimised entry point in the Portenta H7 series. It uses the same STM32H747XI MCU as the full Portenta H7, featuring a Cortex-M7 core (up to 480MHz) and a Cortex-M4 core for parallel multi-threaded process...
Arduino Stackable Header Kit
A set of stackable headers designed for the Arduino Uno, Arduino Pro, and other boards using the classic (pre-R3) pin layout. These female headers sit tall enough to clear the USB-B connector, making them ideal for stacking multiple shields. The kit includes two 8-pin and two 6-pin headers — enou...
