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Arduino MEGA 2560 Atmel R3 compatible Board

Arduino Mega 2560+WiFi R3 ATmega2560+Node MCU ESP8266 CH340G Compatible Board
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Package Includes:
- 1 x Mega 2560 R3 Sensor Shield V2.0 compatible with Arduino
Specifications:
Compatibility | Mega Board compatible with Arduino |
Dimensions | 10 x 5.4 x 1.8cms |
Weight | 50 grams |
1. What is the purpose of Arduino sensor shield?
The intention of an Arduino sensor shield is to streamline the procedure of interconnecting sensors and other input devices to an Arduino microcontroller board. This shield is, in essence, an extension board that fits on top of the Arduino and provides a sequence of input connectors for a variety of sensor types and devices.
By utilizing a sensor shield, you can circumvent the need to manually connect sensors and devices directly to the Arduino's input pins, which can consume a significant amount of time and be prone to error. Instead, you only need to plug the sensors and devices into the appropriate connectors on the shield, and the shield manages the connection to the Arduino.
Sensor shields generally offer an array of input connectors, including analog inputs for sensors that provide uninterrupted voltage readings, digital inputs for sensors that provide distinct on/off signals, and connectors for other categories of devices such as buttons, switches, and relays.
2. Why is it called Arduino Shield?
The term "Arduino shield" refers to an expansion board that can be connected to an Arduino microcontroller board to add additional functionality. The term "shield" comes from the fact that the expansion board is designed to fit on top of the Arduino board, like a shield, and connect to the Arduino's input/output pins.
The concept of using expansion boards to add functionality to a base board is not unique to Arduino. In fact, expansion boards for microcontrollers have been around for many years and are commonly referred to as "daughter boards" or "mezzanine boards."
However, the term "Arduino shield" has become widely used to refer specifically to expansion boards that are designed to work with Arduino boards and follow the Arduino form factor and pin layout. Arduino shields are often designed to work with specific types of sensors or devices, and they typically include connectors, headers, or other interface components that make it easy to connect the shield to the Arduino.