Arduino中数组太长导致重启

void heartbeat() {
  char send_buffer[] = {0x18, 0x30, 0x02, 0x00, 0x00, 0x00, 0x18, 0x9D};
  char read_buf[1024] = {0};
  int len = 0;
  sendHex(send_buffer, sizeof(send_buffer) / sizeof(send_buffer[0]), read_buf, 1024, &len, 1000);

  parseBuf(read_buf, len);
}

将1024改为256就好了，这是在上操作系统中不常见的问题。