0

hi I am using Arduino transmitter and receiver it works properly with sending and receiving username and password but I would include to check the username if its true open the led , I added this in the code but it seems that the code ignoring it ( the last part) as well as I want it to take the password and username at the same time

this is the recover code

#include <RH_ASK.h>//include radioHead ASK library 
#include <SPI.h> // include dependant SPI libray

 RH_ASK rf_driver; // create ASK object
int ledon = 13;
String userid;
String password;
 //RH_ASK ID1; // create ASK object
//RH_ASK pass1; // create ASK object

void setup() {

  rf_driver.init(); //initialize ASK object 


  Serial.begin(9600); //setup serial monitor to 9600

  //if(!rf_driver.init())
       //Serial.print("init failed");      
}

void loop() {

  // set buffer to size of expected message 
  uint8_t buf[9];  
  uint8_t buflen =sizeof(buf);

  //check if recevied packet is correct size
  if (rf_driver.recv(buf,&buflen))
  {
    int i;
    // message received with valid checksum 
    Serial.print("id: ");
    Serial.println((char*)buf);
      userid =(char*)buf;
        Serial.println(userid);

  }

delay(5000);

   uint8_t buf2[8];  
  uint8_t buflen2 = sizeof(buf2);

   if (rf_driver.recv(buf,&buflen))

  {

    int i;
    // message received with valid checksum 
    Serial.print("password: ");
    Serial.println((char*)buf);
      password = (char*)buf;
      Serial.println(password);

  }
  delay(5000);

while ( userid =="A00034732" && password == "123456789"){
digitalWrite(ledon, HIGH);
delay(2000);
digitalWrite(ledon, LOW);

}
}

transmitter code ----

//Include RadioHead Amplitidue shift keying library 
#include <RH_ASK.h>
// Include dependatnt ISP library 
#include <SPI.h>

//create Ampitude shift keying object 
RH_ASK rf_driver;


void setup() {
 // intialize ASK objct
rf_driver.init();

Serial.begin(9600);

  //if(!rf_driver.init())
      //Serial.print("init failed");

}

void loop() 
{

  const char *pass= "123456789";
rf_driver.send((uint8_t *)pass, strlen(pass));
rf_driver.waitPacketSent();
delay(5000);

const char *ID= "A00034732";

rf_driver.send((uint8_t *)ID, strlen(ID));
rf_driver.waitPacketSent();
delay(5000);

//const char *pass= "12345678";
//rf_driver.send((uint8_t *)pass, strlen(pass));
//rf_driver.waitPacketSent();
//delay(5000);


}
1

You're not comparing strings - you're comparing addresses of strings. Use strcmp().

while ( 
    (strcmp(userid, "A00034732") == 0) && 
    (strcmp(password, "123456789") == 0)
) {
| improve this answer | |
  • I want to convert it to integer – amal Nov 28 '19 at 17:26

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.