RS485 example

RS485_example

#include <io>
#include <read>
#include <float>
#include <string>
#include <core>
#include <write>
#include <define>
new rs[10];
new len;
main(){
  Init(RS485, 9600,  WORDLENGTH_8, STOPBITS_1, PARITY_NONE);    // Baud rate: 9600, Word length: 8bit, Stop bit: 1, Parity: none
  while(1){
  len = buf_len(RS485);                                // Read RS485 buffer length
      if(len != 0){                                     // If lenght not equal 0 then read RS485 buffer
          read_buf(RS485, 4, rs);                       // Read RS485 buffer into rs array (read 4 bytes length array)
          if(strcmp(rs, "test", false, 4) == 0){        // Compare rs buffer with "test" text (Compare 4 bytes) if equal send OK
            write_buf(RS485, 6 ,"OK 4 !");              // Send data "OK 4 !" over RS485 (length 6 bytes)
          }
        }
    Delay(1000);                                         // Delay 1 sec.
  }
}