Keypad

Description

This section contains a simulated "matrix style keypad". The keypad sends a message to the Arduino every time a button is pressed. A method called getKeypadData(), returns the current char value but just one time. If you use this method again (in the same loop) it returns '/'. Also you can store this char in a local variable in case you need to use the value more than one time in a loop.

Functions

char getKeypadData()

Syntax

myiShield.getKeypadData()

Returns

char value.

Keypad button (iOS App)	Char in Arduino
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
0	0
.	.
A	a
B	b
C	c
Enter	e
Delete (<)	i

Parameters

None

Example

#include <boards.h>
#include <SPI.h>
#include <RBL_nRF8001.h>
#include "iShield.h"

iShield myiShield;
	
void setup()
{
  	// Init. and start BLE library.
	ble_begin();
  	Serial.begin(9600); 
}

void loop()
{
        myiShield.getInbox();
        
        char currentChar;
        
        currentChar = myiShield.getKeypadData();
        
        if(currentChar != '/'){
          Serial.println(currentChar);
        }
	
}