Circuit diagram:
Coding:
Programming code for code composer studio users:
#include <msp430g2231.h>
#define Key (P1IN &
0X08)
unsigned int i;
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop
watchdog timer
P1DIR |= 0x01; // Set P1.0 to
output direction
P1OUT &= ~(0x01);
while(1)
{
if(!Key)
{
while(!Key);
P1OUT
^= 0x01; // Toggle P1.0
using exclusive-OR
}
}
}
Programming code for energia software users:
int led = P1_0;
int button = P1_3;
void setup()
{
pinMode(led,OUTPUT);
pinMode(button,INPUT);
digitalWrite(led,LOW);
}
void loop()
{
int data =
digitalRead(button);
if (data == LOW){
if(digitalRead(led)
== HIGH){
digitalWrite(led,LOW);
}
if(digitalRead(led) == LOW){
digitalWrite(led,HIGH);
}
}
}
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