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Shield & Carrier Family

Arduino Shield and Carrier Family are intelligently engineered accessories that seamlessly integrate with Arduino boards. Extend the functionality of Arduino boards by connecting compatible shields. The Arduino Shield and Carrier Family offer specialized capabilities, including connectivity, sensing, motor control, and more.

Arduino.org Shields

Arduino.org Shields are boards that can be plugged on top of the Arduino PCB, extending its capabilities. The different shields follow the same philosophy as the original toolkit. These Arduino Shields are easy to mount and cheap to produce.
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Arduino.org has expanded the wireless shield line! View the A000043 GSM Shield

Ethernet Shield 2

Arduino Ethernet Shield 2 allows an Arduino board to connect to the internet and is based on the WIZnet W5500 Ethernet chip. This Ethernet chip provides an IP network stack capable of both Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). The Ethernet shield 2 connects to an Arduino board using long wire-wrap headers extending through the shield. This keeps the pin layout intact and allows another shield to be stacked on top of it.