DFRduino Leonardo with Xbee Socket (Arduino Leonardo Compatible) แท้จาก DFRobot

Featured in Make: The Maker’s Guide to Boards, DFRobot Leonardo with Xbee Socket is a board compatible with Arduino Leonardo. The "Arduino Leonardo" is based on the ATmega32u4 chip. It is the latest addition to the Arduino family. Compared with the earlier Arduino controllers, by using the ATmega32U4 as its sole microcontroller, allows the Leonardo to be cheaper and simpler to use. Also, because the 32U4 is handling the USB directly, code libraries are available which allow the board to emulate a computer keyboard, mouse, and more using the USB-HID protocol! 


Based on the "Arduino Leonardo", this one from DFRobot equips an XBee socket and 3 sensor extension pins for your application. The Xbee is a commonly usedwireless communication modulewith 2.4G Zigbee,900Mhz version, and etc. The socket makes it possible for you to extend the XBee or XBee form factorwifi,BluetoothandRFmodules for your Arduino directly. However, the D14~D16 extension pins with power supply maximize the use of your ATmega32u4 microcontroller. They support the digital sensors and module from DFRobot directly.

Notics: This board is only supported in the latest Arduino IDE 1.0.1 or later version so you will also need to update the IDE.

SPECIFICATION

• Input Voltage (recommended): 7-12V
• Input Voltage (limits): 6-12V
• Microcontroller:ATmega32u4
• Operating Voltage: 5V
• Interface: Micro USB
• Compatible with Arduino Uno R3 series pin mapping
• Directly support Xbee and XBee form factor wifi, Bluetooth and RF modules
• Extend D14~D16 digital pins with 5v power supply
• Clock Speed 16 MHz
• Size: 70x55x14mm (2.76x2.17x0.55")
• Microcontroller Specification
  • Digital I/O Pins: 20
  • PWM Channels: 7
  • Analog Input Channels: 12
  • DC Current per I/O Pin: 40 mA
  • DC Current for 3.3V Pin: 800 mA
  • Flash Memory 32 KB (ATmega32u4) of which 4 KB used by bootloader
  • SRAM: 2.5 KB (ATmega32u4)
  • EEPROM: 1 KB (ATmega32u4)

DOCUMENTS

• DFRobot Microcontrollers compatible with Arduino Selection Guide
• Wiki (Leonardo with Xbee Socket)
• Atmega32u4 datasheet
• Schematic
• Arduino Leonardo product page
• Latest Arduino IDE

• DFRobot Leonardo & Xbee R3 x 1
  
  

  Leonardo Pin Out

  

  Xbee Tutorial

  DFRobot Leonardo with Xbee R3 has a Xbee socket.It uses Serial1 to communicate with Leonardo.

  Sample Code

  // # Description:
  // It is just used to test Leonardo module
  // Write by Grey
  // Input "p" once time the led will be turn on;twice to turn off.
  // It is controled by Serial1 Xbee side only. but you can check the status from serial port.
  
  int ledPin=13;
  int val;
  int count=0;
  void setup()
  {
  pinMode(ledPin,OUTPUT);
  Serial.begin(9600);
  Serial1.begin(115200); // Xbee Serial1 port baud rate should be set the same to the xbee baud rate
  }
  void loop()
  {
  val=Serial1.read(); // read xbee Serial1 data
  if(-1!=val) // "-1" means no data
  {
  
  if('p'==val){
  if(count==0)count=1;
  else if(count==1)count=0;
  }
  
  
  if(count==0){
  digitalWrite(ledPin,HIGH); // Turn on
  Serial.println("LED ON"); // you can check the status from serial port.
  Serial1.println("LED ON"); //you can check the status from serial1 port(xbee).
  }
  else if(count==1)
  {
  digitalWrite(ledPin,LOW); // Turn off
  Serial.println("LED OFF"); //you can check the status from serial port.
  Serial1.println("LED OFF"); //you can check the status from serial1 port(xbee).
  }
  }
  }

  Copy

  Connection diagram