Em xin cám ơn vì đã giúp trước ạ
về phần lỗi là
Arduino: 1.8.3 (Windows 10), Board: "Arduino/Genuino Uno"
Arduino: 1.8.3 (Windows 10), Board: "Arduino/Genuino Uno"
C:\Users\eNViDAT\AppData\Local\Temp\arduino_modified_sketch_392389\DumpInfo.ino: In function 'void setup()':
DumpInfo:21: error: expected ')' before ';' token
pinMode(redLed; OUTPUT);
^
DumpInfo:21: error: expected ';' before ')' token
pinMode(redLed; OUTPUT);
^
DumpInfo:22: error: expected ')' before ';' token
pinMode(greenLed; OUTPUT);
^
DumpInfo:22: error: expected ';' before ')' token
pinMode(greenLed; OUTPUT);
^
DumpInfo:23: error: expected ')' before ';' token
pinMode(blueLed; OUTPUT);
^
DumpInfo:23: error: expected ';' before ')' token
pinMode(blueLed; OUTPUT);
^
C:\Users\eNViDAT\AppData\Local\Temp\arduino_modified_sketch_392389\DumpInfo.ino: In function 'void loop()':
DumpInfo:59: error: expected ')' before ';' token
digitalWrite(blueLed; High);
^
DumpInfo:59: error: 'High' was not declared in this scope
digitalWrite(blueLed; High);
^
DumpInfo:69: error: 'redLED' was not declared in this scope
digitalWrite(redLED; High);
^
DumpInfo:69: error: 'High' was not declared in this scope
digitalWrite(redLED; High);
^
exit status 1
expected ')' before ';' token
This report would have more information with
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option enabled in File -> Preferences.
còn phần code của em là
*/
#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 10
#define RST_PIN 9
constexpr uint8_t redLed = 5; // Set Led Pins
constexpr uint8_t greenLed = 6;
constexpr uint8_t blueLed = 7;
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
void setup()
{
pinMode(redLed; OUTPUT);
pinMode(greenLed; OUTPUT);
pinMode(blueLed; OUTPUT);
Serial.begin(9600); // Initiate a serial communication
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
Serial.println("Nhap the");
Serial.println();
}
void loop()
{
// Look for new cards
if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}
// Select one of the cards
if ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}
//Show UID on serial monitor
Serial.print("UID tag :");
String content= "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
Serial.println();
Serial.print("Message : ");
content.toUpperCase();
if (content.substring(1) == "56 78 2C 07") //Mã thẻ uid ( thay thế)
{
Serial.println("Truy cap du lieu");
Serial.println();
digitalWrite(blueLed; HIGH); //Lỗi ở đây
delay(3000);
}
else {
Serial.println(" Access denied");
digitalWrite(greenLed; HIGH); // Đây nữa
delay(3000);
}
}