buffer does not need to be very large.
//char* fmt_str = "L Y HMD %d 5 1 206230 %d\n";
-#define MAX_BUFF_SIZE 1024
+#define MAX_BUFF_SIZE 64
void (*ootx_packet_clbk)(ootx_packet* packet) = NULL;
void (*ootx_bad_crc_clbk)(ootx_packet* packet, uint32_t crc) = NULL;
