Arduino Shield - extension

What is Arduino Shield?

Arduino Shield boards are electronic overlays that are fully mechanically and electrically compatible with Arduino main modules. In this case, compatibility means not only the compatibility of the spacing and type of connectors (in this case we are dealing with the popular, 'immortal' goldpin connectors with a pitch of 2.54 mm). Full compatibility also means the appropriate voltage levels and the distribution of pins, allowing you to connect Shield modules to the Arduino.

In this category you will find tons of different Arduino Shields modules. In order to clearly answer the question of what is Arduino Shield, it can be said that it extends the functionality of the baseboards. You buy more tiles and get a lot of additional options, e.g. integrated overlays for measuring distance, wireless communication and even movement dedicated to creating robots.

The greatest number of extensions of this type are dedicated to the basic Arduino platforms. Arduino Uno Shields are in the lead here. However, it is worth knowing that Arduino Shield modules can be found for various Arduino designs. Moreover, these overlays are produced by both the official manufacturer, Arduino, and other companies (they are still original products that are licensed). You will also find kits to help you create your own Arduino extensions!

Arduino Shields – some technical specifications

In this category, you will find a wide range of overlays, extending the capabilities of Arduino boards with user communication functions. All presented Arduino Shields have a technical specification that allows them to be 100% safe to use in conjunction with the Arduino baseboard, for example Arduino Uno, Arduino Zero etc. Typical Shields supply voltage levels are the same as the main modules (3.3V and 5V). Some Arduino expansion modules have separate connectors for connecting external supply voltages, if required. This situation is normal. You will meet her, for example, in the case of boards dedicated to motor systems or high power control (e.g. audio amplifiers).

Arduino Shields are often equipped with additional functionalities. You will find many modules with LED, LCD and OLED displays, output devices (keyboards, joysticks and touch panels). You can also choose Arduino Shields that will facilitate wireless communication of your device with other devices (RS485 differential bus, CAN, GSM, Wi-Fi, Bluetooth, ISM band - Xbee).

Arduino Shields – once you have it…

In the Arduino Shield category you will find many overlays that are used to control external devices. You can choose some simple, less advanced overlay with a few electromagnetic relays, or with advanced controllers for LEDs and RGB strips. Ultimately, you can decide to buy complex stepper motor drivers, DC and multi-channel servo controllers.

Anyone who plans to create home automation systems, Internet of Things projects, build a robot or other motorized machine will get exactly what they need. Arduino Shields will help with everything. A properly selected Arduino Shields kit will work seamlessly with all other components. But be careful when you buy these devices! You will buy one and you will never stop buying more! There are plenty of Arduino Shields, and therefore your constructing possibilities are endless!