if some data is available, it is stored in “ip” variable and then written on softserial transmit pin which is pin 11 of Arduino. Then presence of data is checked in buffer. SoftwareSerial softSerial (10, 11) Īfter that, this line sets the baud to 9600 for soft serial and serial communication. Using this “softSerial” object all functions of a normal serial connection can be used such as read, write and so on. Pin 10 will be used as Rx pin and pin 11 will be Tx pin. SoftwareSerial softSerial () creates a serial object named as “softSerial” is declared here. This line includes the SoftwareSerial.h library.
#ESP8266 SERIAL PORT TRASMITTER CODE#
delay(100) Code for Slave Arduino #include Now add a delay of 100ms and this Arduino master will keep sending a string “UART Communication” on the transmit pin after every 100ms. Here the statement “UART Communication” is being written repeatedly with a time delay of 0.1 second on Tx pin 11 of Arduino 1 for transmitting it to other Arduino. One important point to note here is that the baud rate of both Arduino boards such as master and slave should be same. Here the baud rate of 9600 is being set for the softSerial object defined above. #include Ī serial object named as “softSerial” is declared here.
#ESP8266 SERIAL PORT TRASMITTER SOFTWARE#
Code for Master Arduinoįirst includes the software serial library using its #include files. The computer sends commands to Master Arduino, it is written on soft serial pins as defined in master code then it travels to the second Arduino through hardware connections made in pic 1 and it is communicated with Slave Arduino. (if using real Arduino Boards) Serial Communication Code
In order to monitor the status of transmitter and receiver Arduino, virtual terminals have been used.Virtual Tx pin of Arduino 1 transmit data to real buffer of receiver Arduino 2 and this data is written on virtual Tx pin of receiver Arduino 2 which is than shown on virtual terminal named as “Received Data”.Connect virtual pin Rx of first Arduino board with pin Tx of second Arduino board.