Posts made by 123cheatn

123cheatn

@gohan sure I will try.

123cheatn

hey, @gohan it was working fine without mysensors library.

123cheatn

@yveaux the problem was in the code and in the circuit, actually both the modules were not working together.
Previously I had to disconnect either one of the module.

123cheatn

thanks to all of you for the reply.
I found the solution.
after looking at the code and some debugging.
my code is working fine now.
This is the code

/**
 * --------------------------------------------------------------------------------------------------------------------
 * Example sketch/program showing how to read data from more than one PICC to serial.
 * --------------------------------------------------------------------------------------------------------------------
 * This is a MFRC522 library example; for further details and other examples see: https://github.com/miguelbalboa/rfid
 *
 * Example sketch/program showing how to read data from more than one PICC (that is: a RFID Tag or Card) using a
 * MFRC522 based RFID Reader on the Arduino SPI interface.
 *
 * Warning: This may not work! Multiple devices at one SPI are difficult and cause many trouble!! Engineering skill
 *          and knowledge are required!
 *
 * @license Released into the public domain.
 *
 * Typical pin layout used:
 * -----------------------------------------------------------------------------------------
 *             MFRC522      Arduino       Arduino   Arduino    Arduino          Arduino
 *             Reader/PCD   Uno/101       Mega      Nano v3    Leonardo/Micro   Pro Micro
 * Signal      Pin          Pin           Pin       Pin        Pin              Pin
 * -----------------------------------------------------------------------------------------
 * RST/Reset   RST          9             5         D9         RESET/ICSP-5     RST
 * SPI SS 1    SDA(SS)      ** custom, take a unused pin, only HIGH/LOW required **
 * SPI SS 2    SDA(SS)      ** custom, take a unused pin, only HIGH/LOW required **
 * SPI MOSI    MOSI         11 / ICSP-4   51        D11        ICSP-4           16
 * SPI MISO    MISO         12 / ICSP-1   50        D12        ICSP-1           14
 * SPI SCK     SCK          13 / ICSP-3   52        D13        ICSP-3           15
 *
 */

#include <SPI.h>
#include <MFRC522.h>
#include <nRF24L01.h>
#include <RF24.h>
RF24 radio(7, 8); // CE, CSN
const byte add[6] = "00001";
#define RST_PIN         9          // Configurable, see typical pin layout above
#define SS_PIN        10         // Configurable, take a unused pin, only HIGH/LOW required, must be diffrent to SS 2
//#define SS_2_PIN        8          // Configurable, take a unused pin, only HIGH/LOW required, must be diffrent to SS 1

#define NR_OF_READERS   1

byte ssPins[] = {SS_PIN};

MFRC522 mfrc522[NR_OF_READERS];   // Create MFRC522 instance.

/**
 * Initialize.
 */
void setup() {

  Serial.begin(9600); // Initialize serial communications with the PC
  while (!Serial);    // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)

  SPI.begin();        // Init SPI bus

  for (uint8_t reader = 0; reader < NR_OF_READERS; reader++) {
    mfrc522[reader].PCD_Init(ssPins[reader], RST_PIN); // Init each MFRC522 card
    Serial.print(F("Reader "));
    Serial.print(reader);
    Serial.print(F(": "));
    mfrc522[reader].PCD_DumpVersionToSerial();
  }
  radio.begin();
  radio.openWritingPipe(add);
  radio.setPALevel(RF24_PA_MAX);
  radio.stopListening();
}
/**
 * Main loop.
 */
void loop() {
  for (uint8_t reader = 0; reader < NR_OF_READERS; reader++) {
    // Look for new cards

    if (mfrc522[reader].PICC_IsNewCardPresent() && mfrc522[reader].PICC_ReadCardSerial()) {
      Serial.print(F("Reader "));
      Serial.print(reader);
      // Show some details of the PICC (that is: the tag/card)
      Serial.print(F(": Card UID:"));
      dump_byte_array(mfrc522[reader].uid.uidByte, mfrc522[reader].uid.size);
      Serial.println();
      mfrc522[reader].PCD_StopCrypto1();
    }
  }
}

/**
 * Helper routine to dump a byte array as hex values to Serial.
 */
void dump_byte_array(byte *buffer, byte bufferSize) {
  int c[]={176,240,158,94};
  int count=0;
  delay(10);
  for (byte i = 0; i < bufferSize; i++) {
    delay(10);
    Serial.print(buffer[i] < 0x10 ? " 0" : " ");
    Serial.print(buffer[i], HEX);
  }
  Serial.println();
  for (byte i = 0; i < bufferSize; i++) {
    if(buffer[i]==c[i]){
      count++;
    }
  }
  int flag=0;
  if(count==4){
    const char text[] = "17624015894";
    radio.write(&text, sizeof(text));
  }else{
    const char text[] = "No";
    radio.write(&text, sizeof(text));
  }
}

void before() {
// Make sure MFRC is disabled from the SPI bus
pinMode(RST_PIN, INPUT);
digitalWrite(RST_PIN, HIGH);
pinMode(SS_PIN, OUTPUT);
digitalWrite(SS_PIN, LOW);
}

123cheatn

I wanted to interface an RFID sensor and NRF24L01 on same arduino and on the other end another arduino with NRF24L01 to recive a message if the card is detected.

/*
 * Typical pin layout used:
 * -----------------------------------------------------------------------------------------
 *             MFRC522      Arduino       Arduino   Arduino    Arduino          Arduino
 *             Reader/PCD   Uno/101       Mega      Nano v3    Leonardo/Micro   Pro Micro
 * Signal      Pin          Pin           Pin       Pin        Pin              Pin
 * -----------------------------------------------------------------------------------------
 * RST/Reset   RST          9             5         D9         RESET/ICSP-5     RST
 * SPI SS 1    SDA(SS)      ** custom, take a unused pin, only HIGH/LOW required **
 * SPI SS 2    SDA(SS)      ** custom, take a unused pin, only HIGH/LOW required **
 * SPI MOSI    MOSI         11 / ICSP-4   51        D11        ICSP-4           16
 * SPI MISO    MISO         12 / ICSP-1   50        D12        ICSP-1           14
 * SPI SCK     SCK          13 / ICSP-3   52        D13        ICSP-3           15
 *
 */

#include <SPI.h>
#include <MFRC522.h>
#include <nRF24L01.h>
#include <RF24.h>
RF24 radio(7, 8); // CE, CSN
const byte add[6] = "00001";
#define RST_PIN         9          // Configurable, see typical pin layout above
#define SS_PIN        10         // Configurable, take a unused pin, only HIGH/LOW required, must be diffrent to SS 2
//#define SS_2_PIN        8          // Configurable, take a unused pin, only HIGH/LOW required, must be diffrent to SS 1

#define NR_OF_READERS   1

byte ssPins[] = {SS_PIN};

MFRC522 mfrc522[NR_OF_READERS];   // Create MFRC522 instance.

/**
 * Initialize.
 */
void setup() {

  Serial.begin(9600); // Initialize serial communications with the PC
  while (!Serial);    // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)

  SPI.begin();        // Init SPI bus

  for (uint8_t reader = 0; reader < NR_OF_READERS; reader++) {
    mfrc522[reader].PCD_Init(ssPins[reader], RST_PIN); // Init each MFRC522 card
    Serial.print(F("Reader "));
    Serial.print(reader);
    Serial.print(F(": "));
    mfrc522[reader].PCD_DumpVersionToSerial();
  }
}
/**
 * Main loop.
 */
void loop() {
  /*Serial.println(i);
  if(i>100 && i<200){
    after();
    Serial.println("after");
    delay(10);
  }*/
  for (uint8_t reader = 0; reader < NR_OF_READERS; reader++) {
    // Look for new cards

    if (mfrc522[reader].PICC_IsNewCardPresent() && mfrc522[reader].PICC_ReadCardSerial()) {
      Serial.print(F("Reader "));
      Serial.print(reader);
      // Show some details of the PICC (that is: the tag/card)
      Serial.print(F(": Card UID:"));
      dump_byte_array(mfrc522[reader].uid.uidByte, mfrc522[reader].uid.size);
      Serial.println();
      mfrc522[reader].PCD_StopCrypto1();
      /*
      Serial.println();
      Serial.print(F("PICC type: "));
      MFRC522::PICC_Type piccType = mfrc522[reader].PICC_GetType(mfrc522[reader].uid.sak);
      Serial.println(mfrc522[reader].PICC_GetTypeName(piccType));
      *//*
      // Halt PICC
      mfrc522[reader].PICC_HaltA();
      // Stop encryption on PCD
      */
    } //if (mfrc522[reader].PICC_IsNewC
  } //for(uint8_t reader
  /*
  if(i<=100 || i>200){
    before();
    Serial.println("before");
    delay(10);
  }
  i++;*/
  after();
}

/**
 * Helper routine to dump a byte array as hex values to Serial.
 */
void dump_byte_array(byte *buffer, byte bufferSize) {
  before();
  delay(10);
  mysetup();
  for (byte i = 0; i < bufferSize; i++) {
    const char text[] = "Hello World";
    radio.write(&text, sizeof(text));
    delay(10);
    Serial.print(buffer[i] < 0x10 ? " 0" : " ");
    Serial.print(buffer[i], HEX);
  }
}

void before() {
// Make sure MFRC is disabled from the SPI bus
pinMode(RST_PIN, INPUT);
digitalWrite(RST_PIN, HIGH);
pinMode(SS_PIN, OUTPUT);
digitalWrite(SS_PIN, LOW);
}

void after() {
// Make sure MFRC is disabled from the SPI bus
pinMode(RST_PIN, OUTPUT);
digitalWrite(RST_PIN, HIGH);
pinMode(SS_PIN, OUTPUT);
digitalWrite(SS_PIN, HIGH);
}

void mysetup(){
  radio.begin();
  delay(10);
  radio.openWritingPipe(add);
  delay(10);
  radio.setPALevel(RF24_PA_MAX);
  delay(10);
  radio.stopListening();
  delay(10);
}