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. 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. #include Ī serial object named as “softSerial” is declared here. This line includes the SoftwareSerial.h library. #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 case both Arduinos are not powered up using USB port than it is necessary to connect 5V pins of both Arduinos and power up one Arduino with USB port.Connect the GND pin of both Arduino board together (if using real Arduino Boards).
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