Arduino MEGA 2560 Application Note

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©16March2017CO2Meter,Inc.AllRightsReserved 3
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CreatinganArduinoProject
ThisArduinoprojectusestheSoftware.SerialdriverwhichisbuiltintotheArduinosoftware.This
statement
SoftwareSerial T66_Serial(12,13)
Setsupavirtualserialportusingpin12forRxandpin13forTxonbothUNOandMEGAboards.
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Demofiledownloadinstructions
1.ClickonthefollowinglinkorcopythisURLtodownloadtheexamplecode:
http://co2meters.com/Documentation/AppNotes/AN157-T6613-Arduino-uart.zip
2.Savetheexamplecodetoyourharddrive.Insidethe.zipfile,navigatetotheAN157‐Arduno‐T6613‐
uart.inofileintheexamplefolder.Extractitfromthe.zipfile.
3.Double‐clicktheK30_basic.inofiletoopenitintheArduinoGUI.Itwillstartandaskthefollowing:
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4.ClickonOK.ObservetheArduinoprojectcodeisdisplayed.
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5.ClickonSketch>>Verify/Compile.Theprojectshouldcompilewithouterrors.
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6.VerifythatyourArduinoboardisrecognizedcorrectly:
a.ClickonTools.SetBoardtoArduinoUnoorMEGA.
b.ConfirmthatProcessormatchesyourArduino:UNO,MEGAorMEGA2560.
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7.ClickonUpload.Whendoneuploading,yourprojectisnowrunningintheArduinoboard.
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8.Toviewprogramoperation,clickonTools>>SerialMonitor.
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9.Observethefollowing:

Arduino MEGA 2560 Specifications

General

Microcontroller	ATmega2560
Operating Voltage	5V
Input Voltage (recommended)	7-12V
Input Voltage (limit)	6-20V
Digital I/O Pins	54
PWM Channels	15
Analog Input Pins	16
DC Current per I/O Pin	20 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
LED_BUILTIN	13
Length	101.52 mm
Width	53.3 mm
Weight	37 g