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modified on 17 September 2014 at 17:30 ••• 23,997 views

03-01 WhileLoop

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(Created page with 'A very simple example that demonstrates the use of while loops to blink two different User LEDs. LED1 blinks 10 times then LED4 blinks 10 times. [[Image:BAM210_WhileLoop.jpeg|ce…')
 
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A very simple example that demonstrates the use of while loops to blink two different User LEDs. LED1 blinks 10 times then LED4 blinks 10 times.
A very simple example that demonstrates the use of while loops to blink two different User LEDs. LED1 blinks 10 times then LED4 blinks 10 times.
 +
 +
The LEDs for the MBED-SDK and the Bambino line of microcontrollers are mapped to the following LEDs:
 +
{| border="1" cellpadding="5" cellspacing="2" align="center" style="text-align: center;"
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|+ align="bottom"|'''LED Colors'''
 +
|'''LED'''
 +
|'''PIN NAME'''
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|'''BAM210E'''
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|'''BAM210'''
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|'''BAM200E'''
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|'''BAM200'''
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|-
 +
|LED1
 +
|P6_11
 +
|Yellow LED
 +
|Yellow LED
 +
|Yellow LED
 +
|Yellow LED
 +
|-
 +
|LED2
 +
|P2_5
 +
|Green LED
 +
|Green LED
 +
|Green LED
 +
|Green LED
 +
|-
 +
|LED3
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|P6_1
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|RED LED
 +
|RED LED
 +
|n/p
 +
|n/p
 +
|-
 +
|LED4
 +
|P6_2
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|Blue LED
 +
|Blue LED
 +
|n/p
 +
|n/p
 +
|-
 +
|}
 +
 +
/*Program Example 3.1: Demonstrates use of while loops. No external connection required
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                                                                                */
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#include "mbed.h"
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DigitalOut myled(LED1);
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DigitalOut yourled(LED4);
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 +
int main()
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{
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    char i=0;        //declare variable i, and set to 0
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    while(1) {        //start endless loop
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        while(i<10) {    //start first conditional while loop
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            myled = 1;
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            wait(0.2);
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            myled = 0;
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            wait(0.2);
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            i = i+1;        //increment i
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        }                  //end of first conditional while loop
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        while(i>0) {      //start second conditional loop
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            yourled = 1;
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            wait(0.2);
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            yourled = 0;
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            wait(0.2);
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            i = i-1;
 +
        }
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    }                  //end infinite loop block
 +
}                    //end of main
 +
[[Image:BAM210_WhileLoop.jpeg|center|]]
[[Image:BAM210_WhileLoop.jpeg|center|]]

Current revision as of 17:30, 17 September 2014

A very simple example that demonstrates the use of while loops to blink two different User LEDs. LED1 blinks 10 times then LED4 blinks 10 times.

The LEDs for the MBED-SDK and the Bambino line of microcontrollers are mapped to the following LEDs:

LED Colors
LED PIN NAME BAM210E BAM210 BAM200E BAM200
LED1 P6_11 Yellow LED Yellow LED Yellow LED Yellow LED
LED2 P2_5 Green LED Green LED Green LED Green LED
LED3 P6_1 RED LED RED LED n/p n/p
LED4 P6_2 Blue LED Blue LED n/p n/p 
/*Program Example 3.1: Demonstrates use of while loops. No external connection required
                                                                               */
#include "mbed.h"
DigitalOut myled(LED1);
DigitalOut yourled(LED4);

int main()
{
    char i=0;         //declare variable i, and set to 0
    while(1) {        //start endless loop
        while(i<10) {     //start first conditional while loop
            myled = 1;
            wait(0.2);
            myled = 0;
            wait(0.2);
            i = i+1;         //increment i
        }                  //end of first conditional while loop
        while(i>0) {       //start second conditional loop
            yourled = 1;
            wait(0.2);
            yourled = 0;
            wait(0.2);
            i = i-1;
        }
    }                  //end infinite loop block
}                    //end of main


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