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Then click on the play button.Īs you can see we send data serially to multiple serial communication supported devices. ![]() Double click on the Arduino in the Proteus simulation and paste the link in the program file text box. #SOFTWARESERIAL LIBRARY DOWNLOAD CODE#Serial.println(” message from Computer”) Īfter compiling the code I copied the hex file link and pasted it in the Proteus simulation. The following instructions are used to send messages using the Serial.println(). You can use different baud rates as per your requirement. Gsm.begin(9600) // activated the serial communication for GSM #SOFTWARESERIAL LIBRARY DOWNLOAD BLUETOOTH#Serial.begin(9600) // activated the serial communicationīlue.begin(9600) // activated the serial communication for Bluetooth ![]() I started off by adding the SoftwareSerial library.ĭefined two Serial ports for the Bluetooth Module and GSM module with names blue and gsm. Multiple Serial Ports Arduino Program explanation: Multiple Serial Ports Arduino Programming using SoftwareSerial Library: Now I will write a simple program to send some text messages to these terminals. While, the Arduino default serial port is going to be used for the debugging purposes. Bluetooth module is connected with pin number2 and pin number3 while the GSM module is connected with pin number 7 and pin number 8. Multiple Serial Ports Proteus Simulation:įor the best understanding I am going to explain this with the help of a Proteus simulation.ĭownload the Proteus Simulation: SoftwareSerialĪs you can see I have connected a Bluetooth module and a GSM module with the Arduino’s pins 2, 3, 7, and 8. The Arduino’s default serial port should only be used for the debugging purposes. While using the Arduino Uno or Arduino Nano even if you are using one serial device never use the Arduino’s default serial port for the communication with other devices. You can connect any of the two devices with the Arduino’s default serial port, but, what about the other serial device?Īt this point you will need the SoftwareSerial library which can be used to create multiple serial ports. Let’s for example you are working on a project in which you are required to connect two serial devices GSM Sim900A and a Bluetooth module HC-05 or HC-06, or any other serial device. But when it comes to the multiple Serial devices then the Arduino default serial port becomes insufficient. Using the Arduino’s default Serial Port we can connect only one serial communication supported device. In the case of Arduino Uno, we have only one serial port which is available on Pin0 and Pin1. So using the Arduino Mega you can communicate with 4 serial devices at the same time. It’s based on your choice, if you want to use Arduino Mega then I don’t think so you will need the SoftwareSerial library, as in Arduino Mega we have a total of 4 hardware serial ports that can communicate with different serial communication supported devices. #SOFTWARESERIAL LIBRARY DOWNLOAD SOFTWARE#Using the SoftwareSerial library we can create multiple software serial ports with speeds up to 115200bps. The SoftwareSerial is basically a library that enables the Serial Communication on digital pins other than the Serial Port. ![]() I would appreciate your support in this way! SofwareSerial: I may make a commission if you buy the components through these links. Without any further delay, let’s get started!!! I will explain this with the help of a Proteus simulation and will share with you some advanced level projects in which the SoftwareSerial library is used. Why is it used in the Arduino Uno or Arduino Nano programming? How do we know when to use this library? You will get answers to these questions.
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