Roman Valencia / Mbed 2 deprecated writing

writing values on a led

Dependencies:   Hotboards_leds mbed

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main.cpp

00001 
00002 /*
00003  * This program blinks a led but this time we will show you
00004  * how to use the write function to manipulate the led state
00005  * according to a variable value
00006  *
00007  */
00008  
00009 #include "mbed.h"
00010 #include "Hotboards_leds.h"
00011 
00012 //bitRead macro taken from arduino
00013 #define bitRead( var, bit )           (((var) >> (bit)) & 0x01)
00014 
00015 Hotboards_leds led( PA_5 );
00016 
00017 uint8_t counter;
00018 
00019 int main()
00020 {
00021     while(1)
00022     {
00023         //The led will blink because we are writing the LSB
00024         //of the variable counter which on each iteration
00025         //is incremented by 1.
00026         led.write( bitRead( counter , 0 ) );
00027         wait_ms( 200 );
00028         counter ++;
00029     }
00030 }
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