Toggle switch help

hi guys

i added switch arduino doesnt matter if switch on or off seems code maybe getting stuck in while loop , not carrying on rest of loop.

could please point out im doing wrong ive checked switch multimeter , correct think code.

another question how important resistor on switch, know safety not accidentally burn board else?

code: [select]


#include <virtualwire.h>
#undef int
#undef abs
#undef double
#undef float
#undef round
#define ultratrig 5
char *msg1 = "c",*msg2 = "e",*msg3 = "s";
int timer = 200,timer2=150;
int button=7;
int buttonstate;

void setup()
{
  pinmode(ultratrig,output);
  vw_set_ptt_inverted(true);
  vw_setup(2000);
  vw_set_tx_pin(3);
  pinmode(button,input);
}

void loop()
{
  buttonstate = digitalread(button);
 
  if (buttonstate == high){    //stop follow button
  digitalwrite(13, true);vw_send((uint8_t *)msg3, strlen(msg3));vw_wait_tx();digitalwrite(13, false);
  while (buttonstate == high){
    //must add remote controll here
  if (buttonstate == low){
    break;
  }
  }
  }
  digitalwrite(13, true);vw_send((uint8_t *)msg1, strlen(msg1));vw_wait_tx();digitalwrite(13, false);
  digitalwrite(ultratrig,low);
  delaymicroseconds(timer);
  digitalwrite(ultratrig,high);delaymicroseconds(10);digitalwrite(ultratrig,low);
  delay(timer2);
  digitalwrite(13, true);vw_send((uint8_t *)msg2, strlen(msg2));vw_wait_tx();digitalwrite(13, false);
  digitalwrite(ultratrig,low);
  delaymicroseconds(timer);
  digitalwrite(ultratrig,high);delaymicroseconds(10);digitalwrite(ultratrig,low);
  delay(200);//delay before next loop
 
}

thanks mathys

you're not reading button anymore inside while loop ...

how ever not going high once it's in there?

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