ufr-arduino-examples-lib_lcd.ino

#include 
#include 

LiquidCrystallcd(2,3,4,5,6,7);// RS, E, d4, d5, d6, d7

// If this doesn't work, try switching rx and tx
在这里reader(10,11,12);/ / rx, tx,重置

//#define DEBUG_CODE

voidsetup(){
pinMode(LED_BUILTIN,OUTPUT);
lcd.begin(16,2);
lcd.clear();
delay(100);
reader.begin();
delay(2000);// Required!

/* For testing purposes:
* reader.setRedLED(HIGH);
* delay(2000);
* reader.setRedLED(HIGH);
*/
uint8_ttype[4];
lcd.print("Code: ");
lcd.print(reader.getReaderType(type),HEX);
lcd.print(" Type:");
lcd.setCursor(0,1);
for(inti=0;i<4;i++){
lcd.print(type[i],HEX);
lcd.print(" ");
}
delay(3000);
lcd.clear();
lcd.print("Waiting for card");
}

voidloop(){
uint8_tcardID[10];
uint8_tlength=0;
uint8_tcode=reader.getCardID(cardID,&length);
if(code==0){
lcd.clear();
lcd.print("Card found! UID:");
lcd.setCursor(0,1);
for(inti=0;i<length;i++){
//show leading zero for 0x00 to 0x0F
if(cardID[i]<16)
lcd.print("0");
lcd.print(cardID[i],HEX);
}
digitalWrite(LED_BUILTIN,HIGH);
delay(3000);
digitalWrite(LED_BUILTIN,LOW);
lcd.clear();
lcd.print("Waiting for card");
}elseif(code!=NO_CARD){
#ifdef DEBUG_CODE
lcd.print("Error code:");
lcd.setCursor(0,1);
lcd.print("0x");
lcd.print(code,HEX);
delay(2000);
lcd.clear();
lcd.print("Waiting for card");
#endif //DEBUG_CODE
}
// Reduce delay if response is slow
delay(200);
}