Arduino

Arduino is a widely used development board. This board is well-known in the embedded community. Mostly, Arduino boards are built using Atmel AVR, but some boards use other Microcontroller Units (MCUs) depending on who is in joint venture with Arduino. Currently, Arduino boards are built by Arduino.

We will review several Arduino boards from Arduino.cc (https://www.arduino.cc/en/Main/Products). We can read a comparison of all the Arduino boards by visiting  http://www.arduino.cc/en/Products/Compare. We will review some Arduino boards, such as Arduino Uno, Arduino 101, and Arduino MKR1000:

• The Arduino Uno model is widely used in Arduino development. It's built on top of MCU ATmega328P. The board provides several digital and analog I/O pins, which we can attach our sensor and actuator devices to. SPI and I2C protocols are also provided by Arduino Uno.

For further information about the board, I recommend you read the board specification at http://www.arduino.cc/en/Main/ArduinoBoardUno. The Arduino board is shown in the following image:

Since Arduino Uno does not provide network modules, either Ethernet or wireless modules, we should put the network module with the supported AWS IoT to enable it to communicate with other machines.

• Arduino 101 is the same model as Arduino Uno in terms of I/O pins. Arduino 101 runs Intel? Curie? as its core module. For more information, refer to http://www.intel.com/content/www/us/en/wearables/wearable-soc.html. This board has a built-in Bluetooth module. If you want Arduino 101 work with a Wi-Fi network, you should add an additional Wi-Fi shield. I recommend using Arduino Wi-Fi Shield 101. For more information, refer to https://store.arduino.cc/genuino-101:

• Arduino Yún is a microcontroller board based on the ATmega32u4 and the Atheros AR9331. This board runs OpenWrt Linux, called LininoOS. Arduino Yún can connect through Ethernet and Wi-Fi modules that are built-in features on the board. For further information on Arduino Yún, you can visit https://store.arduino.cc/arduino-yun. You can see a form of Arduino Yún in the following image:

Arduino also provides another model with a small factor. It's Arduino Yún Mini. For more information, refer to https://store.arduino.cc/arduino-yun-mini. This board removes the Ethernet socket from the body to give a smaller board size. You can see Arduino Yún Mini in the following image: