About Arduino Board

Arduino Board is a circuit board, which integrates microcontroller, input, output interface and etc. Arduino Board can use the sensor to sense the environment and receive the user's operation to control LED, motor rotation, etc. We just need to assembly the circuit and write the code. 

About Arduino Board

Currently, the Arduino Board has several models, and the code between boards of different types is universal (some boards may not be completely compatible because of the differences in hardware). Popular boards include: 

ARDUINO UNO 

ARDUINO MICRO

ARDUINO NANO

ARDUINO MEGA

ARDUINO DUE

The board used in this Course is Arduino UNO compatible board, and it is fully compatible with Arduino UNO. Diagram of the Arduino UNO board is shown below: 

  • Digital I/O ports are used to connect to other components or modules, to receive an input signal, or to send a control signal. Usually, we name it by adding a "D" in front of the number, such as D13.
  • The USB interface is used to provide power, upload code or communicate with PC.
  • LED L is connected to the digital I/O port 13 (D13).
  • LED TX, RX is used to indicate the state of the serial communication.
  • DC interface is connected DC power to provide power for the board.
  • Power ports can provide power for electronic components and modules.
  • Analog I/O ports can be used to measure analog signals.
  • LED ON is used to indicate the power state.

Arduino UNO is the most suitable board to complete the experiments of this book. You can also choose to use Arduino UNO, Arduino MICRO, Arduino NANO, Arduino MEGA (or other boards compatible with them). 

Arduino UNO R3 Specification 

  • Arduino Uno R3
  • Microcontroller: ATmega328P 
  • Operating Voltage: 5V 
  • Input Voltage (recommended): 7-12V 
  • Inout Voltage (limit): 6-20V 
  • Digital I/O Pins: 14 (of which 6 provide PWM output) 
  • PWM Digital I/O Pins: 6 
  • Analog Input Pins: 6 
  • DC Current per I/O Pin: 20 mA 
  • DC current for 3.3V Pin: 50 mA 
  • Flash Memory: 32 KB (ATmega328P) of which 0.5 KB used by bootloader
  • SRAM: 2 KB (ATmega328P)
  • EEPROM: 1 KB (ATmega328P)
  • Clock Speed: 16 MHz
  • LED_BUILTIN: 13
  • Length: 68.6 mm 
  • Width: 58.4 mm 
  • Weight: 25 g 

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