库的作用:
通过EthernetServer server(12000)接收到数据后,发给Keypad处理,模拟按下,弹起等.
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192,168,0,177);
EthernetServer server(15000);
Keypad keypad = Keypad(server);
void setup(){
Serial.begin(9600);
keypad.addEventListener(keypadEvent); //add an event listener for this keypad
}
这样会出错.放到setup()中,也不行 |