(:source http://arduino.cc/en/pub/code/master/build/shared/examples/04.Communication/MultiSerialMega/MultiSerialMega.ino lang=arduino tabwidth=4:)

(:source http://arduino.cc/en/pub/code/master/build/shared/examples/4.Communication/MultiSerialMega/MultiSerialMega.ino lang=arduino tabwidth=4:)

(:source http://arduino.cc/en/pub/code/new-extension/build/shared/examples/4.Communication/MultiSerialMega/MultiSerialMega.ino lang=arduino tabwidth=4:)

• DigitalReadSerial - read a switch and print it's state out to the Serial Monitor.
• AnalogReadSerial - read a potentiometer, print it's state out to the Serial Monitor.

• serial.begin()
• serial.read()
• serial.available()
• if()

• The Arduino Serial Library
• Serial Call Response - send multiple variables using a call and response (handshaking) method.
• Serial Call and Response ASCII - send multiple vairables using a call-and-response (handshaking) method, and ASCII-encoding the values before sending.
• If Statement - how to use an if statement to change output conditions based on changing input conditions.
• For Loop: - controlling multiple LEDs with a for loop.
• Array: a variation on the For Loop example that demonstrates how to use an array.
• While Loop: how to use a while loop to calibrate a sensor while a button is being read.
• Switch Case: how to choose between a discrete number of values. Equivalent to multiple If statements. This example shows how to divide a sensor's range into a set of four bands and to take four different actions depending on which band the result is in.

Sometimes, one serial port just isn't enough! When trying to communicate with multiple serial enabled devices, while also sending info back to the main serial window, a few extra RX/TX ports can be a welcomed thing. This example makes use of one of Arduino Mega's 3 auxiliary serial ports, routing any incoming data read on that connection straight to the main TX line, and, in turn, to the main serial window for you to view.

After checking the data sheet of whatever serial enabled device you choose to use for this example, make sure that it is both properly wired and powered. Connect the RX pin and TX pins of your device to the TX and RX pins of your Mega, as shown in the schematic below.

• (1) serial enabled device (a Xbee Radio, Bluetooth module, or RFID reader, or another Arduino, for instance).

• Any serial enabled device (a Xbee Radio, Bluetooth module, or RFID reader, or another Arduino, for instance).

After checking the data sheet of whatever serial enabled device you choose to use for this example, make sure that it is properly wired and powered. Connect the RX pin and TX pins of your device to the TX and RX pins of your Mega, as shown in the schematic below.

Make sure that your Mega is connected to your computer, via USB, to enable serial communication.

Code

• Any serial enabled device ( a Xbee Radio, Bluetooth module, or RFID reader, for instance)

• Any serial enabled device ( a Xbee Radio, Bluetooth module, or RFID reader, for instance).

MultiSerialMega

Sometimes, one serial port just isn't enough! In trying to communicate with multiple serial enabled devices while also sending info back to the main serial window, a few extra ports can be a welcomed thing. This example makes use of one of Arduino Mega's 3 auxiliary serial ports, routing any incoming data read on that connection straight to the main TX line, and, in turn, to the main serial window.

• (1) Arduino Mega Board

(:source http://arduino.cc/en/pub/code/master/build/shared/examples/4.Communication/MultiSerialMega/MultiSerialMega.pde lang=arduino tabwidth=4:)

Examples > Communication

Example Name

Description

(:div class=BOM :)

Hardware Required

• Arduino Board

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Circuit

(:div class=circuit :)

image developed using Fritzing. For more circuit examples, see the Fritzing project page

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Schematic

(:div class=circuit :)

(:divend:)

Describe what's going on here

(:div class=code :) (:source http://arduino.cc/en/pub/code/master/build/shared/examples/4.Communication/MultiSerialMega/MultiSerialMega.pde language=arduino tabwidth=4:) (:divend:)

See Also:

• Reference page for this command?
• Other example in this category?