Arduino and Visi-Genie

[oumyth]

Hello,

I have previously coded the display screen only via arduino and never used the Visi-Genie environment. My arduino interacts with other components so I want to keep coding the final code only in Arduino IDE.

At a moment in my code, I want to display a keyboard, say for example to type a name and enable the arduino to read the name as a string. However, I didn't know where to start so I searched through this forum and came accross this zip project, which enables password authentification by displaying a keypad : 4D-AN-00188_R_1_01.zip

If I understand well, the Visi Genie environment requires a micro SD card and makes it easier to paste the static code of the different forms.

I have different questions regarding the passowrd demo code used in the file. I have added them as questions in the following code :

#include <genieArduino.h>

#define RESETLINE 4
Genie genie;
char keyvalue[10]; // This enables to store keyboard values in a char of 10 values maximum ? Can it be less than 10 or just 10 ?
char newkeyvalue[10];    //this is for Keyboard1 and the previous one for Keyboard0 right? But why is there two keyboards ? we're only supposed to type password once ? 
char asterisk[9];             // What is the use of the asterik ?
int counter = 0;
int counter2 = 0;
int temp;
int temp2;
bool flag;

void setup()
{
Serial.begin(9600);
Serial1.begin(9600); 
genie.Begin(Serial1);
genie.AttachEventHandler(myGenieEventHandler);     
pinMode(RESETLINE, OUTPUT); 
digitalWrite(RESETLINE, 1); 
delay(100);
digitalWrite(RESETLINE, 0);

delay (3500); 


}

void loop()
{
genie.DoEvents();

}

void myGenieEventHandler(void)
{
genieFrame Event;      //What does this do ? 
genie.DequeueEvent(&Event);

if (Event.reportObject.cmd == GENIE_REPORT_EVENT)
{
if(Event.reportObject.object == GENIE_OBJ_KEYBOARD)        //Okay so this sees if there is a change in the keyboard right ? but how do they know how the keyboard looks like ? I haven't seen a line of code prior to that "designing" the code ? Their keypad display only number, but I want a keyboard that displays only letters, a back option and a space option, how can I do that ?
{
if (Event.reportObject.index == 0) 
{
temp = genie.GetEventData(&Event);               //is temp the character typed in the keyboard ? 
if(temp >= 48 && temp <= 57 && counter <=9)   //what does 48 and 57 stand for ? the numbers in ASCII ? what does counter >9 means ? 
{
keyvalue[counter] = temp; // Receive the event data from the keyboard
genie.WriteStr(0,keyvalue); //it says that this prints to String Object, but where does it print it ?? 
counter = counter + 1; 
}
else if(temp == 8) //what does 8 stand for ?
{
counter--; what does "--" mean ?
keyvalue[counter] = 0;
genie.WriteStr(0,keyvalue);
}
else if(temp == 13) //what does 13 stand for ?
{
for(int x =0; x<counter ; x++)
{
Serial.println(keyvalue[x]);             

}
Serial.print("DONE");

genie.WriteObject(GENIE_OBJ_FORM,0x01,0);   //what is this ? the second keyboard ? what is its use?
}
}
}
if (Event.reportObject.index == 1)
{
temp2 = genie.GetEventData(&Event);  //whats the use of having a second keyboard ?
if(temp2 >= 48 && temp2 <= 57 && counter2 <=9)
{
newkeyvalue[counter2] = temp2;
asterisk[counter2] = temp2;
genie.WriteStr(1,asterisk);
asterisk[counter2] = '*';
counter2 = counter2 + 1;
delay(200);
genie.WriteStr(1,asterisk);
}
else if(temp2 == 8 && counter2 >0) //check if backspace
{
counter2--;
newkeyvalue[counter2] = 0;
asterisk[counter2] = ' ';
genie.WriteStr(1,asterisk);
}
else if(temp2 == 13)
{
for(int x =0; x<counter ; x++)
{
Serial.println(newkeyvalue[x]);

}
Serial.print("DONE");

for(int x=0; x<9;x++)
{
if(keyvalue[x] == newkeyvalue[x]) //instead of having two keyvalues, can I just keep one keyboard and compare it to a string to see if the "password" is correct ?)
{
flag = 1;  
Serial.println("PASSED");
}
else
{
flag = 0;
}
if(flag == 0)
{
break;
}
}
if(flag == 0)
{
genie.WriteStr(2,"INCORRECT PASSWORD");
delay(2000);

}
else if(flag == 1)
{
genie.WriteStr(2,"CORRECT PASSWORD");
for(int y=0;y<9;y++)
{
newkeyvalue[y] = 0;
asterisk[y] = 0;

}
delay(2000);
flag = 0;
counter2 = 0;
genie.WriteStr(1,asterisk);   //Why do this ? 
genie.WriteObject(GENIE_OBJ_FORM,0x01,0);   // why do this ?
}
}
}
}



}

I know... that's a lot of questions ^^ I'm a novice in the 4Dsystems environment so everything is pretty new to me, I'm sorry for all the spams !

Best regards,
Oumy

[sherwin4D]

Hi Oumy,

Please download attached file to find the answers to your queries.

Hope that helps.

Kind regards,
Sherwin

[oumyth]

Hello,

Thank you so much for your detailed answer !! You've been a great help, it is much clearer now !

Kind regards,
Oumy

[sherwin4D]

You are very much welcome.

All the best with your project.

-Sherwin