1. Serial Communication Rs232
2. Serial Communication Ppt
3. Communicating Between Two Arduinos

The Arduino hardware has built-in support for serial communication on pins 0 and 1 (which also goes to the computer via the USB connection).The native serial support happens via a piece of hardware (built into the chip) called a UART. This hardware allows the Atmega chip to receive serial communication even while working on other tasks, as long as there room in the 64 byte serial buffer.For normal serial communication you do not need to add any extra library in Arduino IDE.Such as,

What I know from my search on the internet, for both SPI and I2C protocols, communication between multiple devices needs a master, which initiates the communication, and slaves, which respond to the master's request. Basically slaves can't initiate a transfer. 1 Arduino master that reads sensors and generates velocity ramp profiles based on the sensor signals and then sends those ramps to slaves. 3 (or more) Arduino slaves that control the velocity of 12V servo motors following the ramps sent by the master. What is a good communication protocol to achieve this? Serial (SPI)? Something else? Dec 09, 2012  The Arduino Uno (ATmega328) has a single hardware serial connection. If more serial connections are needed, you must implement these in software. Luckily, there is a very easy to use library to implement software serial connections. It is called SoftwareSerial.h and is included with the latest Arduino IDE. The following code demonstrates how to.

void setup() {
Serial.begin(9600); // initialize serial communication at 9600 bits per second

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}

Serial Communication Rs232

void loop() {

Serial.println('Hello Everyone');
delay(1000);

Serial Communication Ppt

}

Communicating Between Two Arduinos

/free-download-for-windows-10.html. Since pin 0 and pin 1 is internally connected.So when we upload this program in arduino and open serial monitor.This will print 'Hello Everyone'.If we use any communication device to do serial communication that will send 'Hello Everyone' string in other device using serial communication.Now, if you need to add more serial communication port to do serial communication.Then you need to add a library which is called 'SoftwareSerial.h'.