1. HEX + ASCII 데이터를 HEX로 파싱 이전 소스는 ( https://sangjunui.tistory.com/29?category=1007817 ) 참고 - 송신 데이터 tx_buffer[tx_len++] = (char)0x02; tx_buffer[tx_len++] = '2'; tx_buffer[tx_len++] = '3'; tx_buffer[tx_len++] = '4'; tx_buffer[tx_len++] = '5'; tx_buffer[tx_len++] = '6'; tx_buffer[tx_len++] = '7'; tx_buffer[tx_len++] = '8'; tx_buffer[tx_len++] = '9'; tx_buffer[tx_len++] = '0'; tx_buffer[tx_len++] ..