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Compatible Arduino Mega 2560 R3 FOC USB & jumper cables

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    Compatible  Arduino Mega 2560 R3  FOC USB  & jumper cables

     

    This is compatible Arduino Mega2560 - follow Official Board R3 specs - with free USB cable 

    Overview

    The Arduino Mega 2560 is a microcontroller board based on the ATmega2560 (datasheet). It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila.

     

    The Mega 2560 is an update to the Arduino Mega, which it replaces.

     

    The Mega2560 differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the ATmega16U2 (ATmega8U2 in the revision 1 and revision 2 boards) programmed as a USB-to-serial converter.
    Revision 2 of the Mega2560 board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.
    Revision 3 of the board has the following new features:

    • 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Arduino Due that operate with 3.3V. The second one is a not connected pin, that is reserved for future purposes.
    • Stronger RESET circuit.
    • Atmega 16U2 replace the 8U2.

     

    Schematic, Reference Design & Pin Mapping

    EAGLE files: arduino-mega2560_R3-reference-design.zip

     

    Schematic: arduino-mega2560_R3-schematic.pdf

     

    Pin Mapping: PinMap2560 page

    Summary

    Microcontroller ATmega2560
    Operating Voltage 5V
    Input Voltage (recommended) 7-12V
    Input Voltage (limits) 6-20V
    Digital I/O Pins 54 (of which 15 provide PWM output)
    Analog Input Pins 16
    DC Current per I/O Pin 40 mA
    DC Current for 3.3V Pin 50 mA
    Flash Memory 256 KB of which 8 KB used by bootloader
    SRAM 8 KB
    EEPROM 4 KB
    Clock Speed 16 MHz

     

    Power

    The Arduino Mega can be powered via the USB connection or with an external power supply. The power source is selected automatically.

     

    External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector.

     

    The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.

     

    The power pins are as follows:

     

    • VIN. The input voltage to the Arduino board when it's using an external power source (as opposed to 5 volts from the USB connection or other regulated power source). You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.

       

    • 5V. This pin outputs a regulated 5V from the regulator on the board. The board can be supplied with power either from the DC power jack (7 - 12V), the USB connector (5V), or the VIN pin of the board (7-12V). Supplying voltage via the 5V or 3.3V pins bypasses the regulator, and can damage your board. We don't advise it.

       

    • 3V3. A 3.3 volt supply generated by the on-board regulator. Maximum current draw is 50 mA.

       

    • GND. Ground pins.

       

    • IOREF. This pin on the Arduino board provides the voltage reference with which the microcontroller operates. A properly configured shield can read the IOREF pin voltage and select the appropriate power source or enable voltage translators on the outputs for working with the 5V or 3.3V.

     

    Memory

    The ATmega2560 has 256 KB of flash memory for storing code (of which 8 KB is used for the bootloader), 8 KB of SRAM and 4 KB of EEPROM (which can be read and written with the EEPROM library).

     

    Input and Output

    Each of the 54 digital pins on the Mega can be used as an input or output, using pinMode()digitalWrite(), anddigitalRead() functions. They operate at 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. In addition, some pins have specialized functions:

     

    • Serial: 0 (RX) and 1 (TX); Serial 1: 19 (RX) and 18 (TX); Serial 2: 17 (RX) and 16 (TX); Serial 3: 15 (RX) and 14 (TX). Used to receive (RX) and transmit (TX) TTL serial data. Pins 0 and 1 are also connected to the corresponding pins of the ATmega16U2 USB-to-TTL Serial chip.

       

    • External Interrupts: 2 (interrupt 0), 3 (interrupt 1), 18 (interrupt 5), 19 (interrupt 4), 20 (interrupt 3), and 21 (interrupt 2). These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.

       

    • PWM: 2 to 13 and 44 to 46. Provide 8-bit PWM output with the analogWrite() function.

       

    • SPI: 50 (MISO), 51 (MOSI), 52 (SCK), 53 (SS). These pins support SPI communication using the SPI library. The SPI pins are also broken out on the ICSP header, which is physically compatible with the Uno, Duemilanove and Diecimila.

       

    • LED: 13. There is a built-in LED connected to digital pin 13. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off.

       

    • TWI: 20 (SDA) and 21 (SCL). Support TWI communication using the Wire library. Note that these pins are not in the same location as the TWI pins on the Duemilanove or Diecimila.

     

    The Mega2560 has 16 analog inputs, each of which provide 10 bits of resolution (i.e. 1024 different values). By default they measure from ground to 5 volts, though is it possible to change the upper end of their range using the AREF pin and analogReference() function.

     

    There are a couple of other pins on the board:

     

    • AREF. Reference voltage for the analog inputs. Used with analogReference().

       

    • Reset. Bring this line LOW to reset the microcontroller. Typically used to add a reset button to shields which block the one on the board.

     

    Communication

    The Arduino Mega2560 has a number of facilities for communicating with a computer, another Arduino, or other microcontrollers. The ATmega2560 provides four hardware UARTs for TTL (5V) serial communication. AnATmega16U2 (ATmega 8U2 on the revision 1 and revision 2 boards) on the board channels one of these over USB and provides a virtual com port to software on the computer (Windows machines will need a .inf file, but OSX and Linux machines will recognize the board as a COM port automatically. The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the board. The RX and TX LEDs on the board will flash when data is being transmitted via the ATmega8U2/ATmega16U2 chip and USB connection to the computer (but not for serial communication on pins 0 and 1).

     

    SoftwareSerial library allows for serial communication on any of the Mega2560's digital pins.

     

    The ATmega2560 also supports TWI and SPI communication. The Arduino software includes a Wire library to simplify use of the TWI bus; see the documentation for details. For SPI communication, use the SPI library.

     

    Programming

    The Arduino Mega can be programmed with the Arduino software (download). For details, see the reference and tutorials.

     

    The ATmega2560 on the Arduino Mega comes preburned with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol (referenceC header files).

     

    You can also bypass the bootloader and program the microcontroller through the ICSP (In-Circuit Serial Programming) header; see these instructions for details.

     

    The ATmega16U2 (or 8U2 in the rev1 and rev2 boards) firmware source code is available in the Arduino repository. TheATmega16U2/8U2 is loaded with a DFU bootloader, which can be activated by:

    • On Rev1 boards: connecting the solder jumper on the back of the board (near the map of Italy) and then resetting the 8U2.
    • On Rev2 or later boards: there is a resistor that pulling the 8U2/16U2 HWB line to ground, making it easier to put into DFU mode. You can then use Atmel's FLIP software (Windows) or the DFU programmer (Mac OS X and Linux) to load a new firmware. Or you can use the ISP header with an external programmer (overwriting the DFU bootloader). See this user-contributed tutorial for more information.

     

    Automatic (Software) Reset

    Rather then requiring a physical press of the reset button before an upload, the Arduino Mega2560 is designed in a way that allows it to be reset by software running on a connected computer. One of the hardware flow control lines (DTR) of the ATmega8U2 is connected to the reset line of the ATmega2560 via a 100 nanofarad capacitor. When this line is asserted (taken low), the reset line drops long enough to reset the chip. The Arduino software uses this capability to allow you to upload code by simply pressing the upload button in the Arduino environment. This means that the bootloader can have a shorter timeout, as the lowering of DTR can be well-coordinated with the start of the upload.

     

    This setup has other implications. When the Mega2560 is connected to either a computer running Mac OS X or Linux, it resets each time a connection is made to it from software (via USB). For the following half-second or so, the bootloader is running on the Mega2560. While it is programmed to ignore malformed data (i.e. anything besides an upload of new code), it will intercept the first few bytes of data sent to the board after a connection is opened. If a sketch running on the board receives one-time configuration or other data when it first starts, make sure that the software with which it communicates waits a second after opening the connection and before sending this data.

     

    The Mega2560 contains a trace that can be cut to disable the auto-reset. The pads on either side of the trace can be soldered together to re-enable it. It's labeled "RESET-EN". You may also be able to disable the auto-reset by connecting a 110 ohm resistor from 5V to the reset line; see this forum thread for details.

     

    USB Overcurrent Protection

    The Arduino Mega2560 has a resettable polyfuse that protects your computer's USB ports from shorts and overcurrent. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed.

     

    Physical Characteristics and Shield Compatibility

    The maximum length and width of the Mega2560 PCB are 4 and 2.1 inches respectively, with the USB connector and power jack extending beyond the former dimension. Three screw holes allow the board to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil (0.16"), not an even multiple of the 100 mil spacing of the other pins.

     

    The Mega2560 is designed to be compatible with most shields designed for the Uno, Diecimila or Duemilanove. Digital pins 0 to 13 (and the adjacent AREF and GND pins), analog inputs 0 to 5, the power header, and ICSP header are all in equivalent locations. Further the main UART (serial port) is located on the same pins (0 and 1), as are external interrupts 0 and 1 (pins 2 and 3 respectively). SPI is available through the ICSP header on both the Mega2560 and Duemilanove / Diecimila. Please note that I2C is not located on the same pins on the Mega (20 and 21) as the Duemilanove / Diecimila (analog inputs 4 and 5).


    Last Updated @ 12/31/2013 2:58:20 PM


    Last Updated @ 10/26/2015 10:13:51 PM

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    Recent Transactions

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    ai**** Compatible Arduino Mega 2560 R3 FOC USB & jumper cables
    ( Board Only )
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    15/04/2017
    mi**** Compatible Arduino Mega 2560 R3 FOC USB & jumper cables
    ( Board Only )
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    20/11/2016


    Questions & Comments

    Questions & Answers   Ask Seller


    Show:
    User:   randyozz17/10/2015 09:58 PM
    Question:   is it refundable if i encounter any defect?
    Answer:   any defect please send back for replacement. Thanks18/10/2015 10:17 AM
    User:   randyozz17/10/2015 09:18 PM
    Question:   How long is the shipment to Penang? The total amount is RM58.89 + RM7 ?
    Answer:   1 day shipping. yes. please do a buynow17/10/2015 09:30 PM
    User:   dsync8914/04/2015 06:41 PM
    Question:   Hi there, do you have ready stock for one unit of Mega 2560 R3? Will it be compatible to use with Arduino IDE just like the original ones? Thanks.
    Answer:   Yes. In stock. Compatible14/04/2015 07:17 PM
    User:   lootchai10/11/2014 05:57 PM
    Question:   Just pay, please check your bank account. Thank you
    Answer:   Noted. Thanks10/11/2014 06:13 PM
    User:   lootchai10/11/2014 05:13 PM
    Question:   Is this product still available? when you can make delivery?
    Answer:   yes. available. will post tomorrow10/11/2014 05:29 PM
    See More Questions (4)
    User:   hock12313/07/2014 03:02 AM
    Question:   Bro....this 1 ori too.....
    Answer:   compatible13/07/2014 09:27 AM
    User:   syedul858529/05/2013 10:54 AM
    Question:   Thanks for the reply. What about the discount and shipping charge if I self collect?
    Answer:   no shipping fee. discount available on quantity. thanks, please email me at deanwong@e-here.net29/05/2013 10:58 AM
    User:   syedul858529/05/2013 10:42 AM
    Question:   Is it possible to pickup the Arduino board from your store? I want to buy Arduino Mega2560 R3 Official Board FOC USB. Can you give discount?
    Answer:   yes.. cod location Tesco Setia Alam. you can do a buynow and indicate COD/self collect at Tesco Setia Alam. my contact will be given after your buynow. Discount given for purchases more than one, and no surcharge/poslaju for this item29/05/2013 10:46 AM
    User:   syedul858529/05/2013 10:42 AM
    Question:   Is it possible to pickup the Arduino board from your store? I want to buy Arduino Mega2560 R3 Official Board FOC USB. Can you give discount?
    Answer:   yes.. cod location Tesco Setia Alam. you can do a buynow and indicate COD/self collect at Tesco Setia Alam. my contact will be given after your buynow29/05/2013 10:46 AM
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    Questions & AnswersDo you have any questions to ask merchant about this product   Ask Seller


    Display:
    User:   randyozz17/10/2015 09:58 PM
    Question:   is it refundable if i encounter any defect?
    Answer:   any defect please send back for replacement. Thanks18/10/2015 10:17 AM
    User:   randyozz17/10/2015 09:18 PM
    Question:   How long is the shipment to Penang? The total amount is RM58.89 + RM7 ?
    Answer:   1 day shipping. yes. please do a buynow17/10/2015 09:30 PM
    User:   dsync8914/04/2015 06:41 PM
    Question:   Hi there, do you have ready stock for one unit of Mega 2560 R3? Will it be compatible to use with Arduino IDE just like the original ones? Thanks.
    Answer:   Yes. In stock. Compatible14/04/2015 07:17 PM
    User:   lootchai10/11/2014 05:57 PM
    Question:   Just pay, please check your bank account. Thank you
    Answer:   Noted. Thanks10/11/2014 06:13 PM
    User:   lootchai10/11/2014 05:13 PM
    Question:   Is this product still available? when you can make delivery?
    Answer:   yes. available. will post tomorrow10/11/2014 05:29 PM
    See More Questions (4)
    User:   hock12313/07/2014 03:02 AM
    Question:   Bro....this 1 ori too.....
    Answer:   compatible13/07/2014 09:27 AM
    User:   syedul858529/05/2013 10:54 AM
    Question:   Thanks for the reply. What about the discount and shipping charge if I self collect?
    Answer:   no shipping fee. discount available on quantity. thanks, please email me at deanwong@e-here.net29/05/2013 10:58 AM
    User:   syedul858529/05/2013 10:42 AM
    Question:   Is it possible to pickup the Arduino board from your store? I want to buy Arduino Mega2560 R3 Official Board FOC USB. Can you give discount?
    Answer:   yes.. cod location Tesco Setia Alam. you can do a buynow and indicate COD/self collect at Tesco Setia Alam. my contact will be given after your buynow. Discount given for purchases more than one, and no surcharge/poslaju for this item29/05/2013 10:46 AM
    User:   syedul858529/05/2013 10:42 AM
    Question:   Is it possible to pickup the Arduino board from your store? I want to buy Arduino Mega2560 R3 Official Board FOC USB. Can you give discount?
    Answer:   yes.. cod location Tesco Setia Alam. you can do a buynow and indicate COD/self collect at Tesco Setia Alam. my contact will be given after your buynow29/05/2013 10:46 AM
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