Stand alone ATTiny85 and restart/reboot

Other Hardware 3rd Party Boards
1

Hi everyone!

I have a ATTiny85 that I use with capacitive touch and sometimes the ATTiny85 hang up and indicate that the touchplates is activated. Therefor I would like to restart/reboot the ATTiny85 but I'm not sure how to do that. I tried the SoftReset library but it didn't work for me. I tried some code:

#include <SoftReset.h>
#include <avr/power.h>

int led = 3;
int counter = 0;

void setup() {          
  if (F_CPU == 16000000) clock_prescale_set(clock_div_1);      
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);     
  for(int ii=0; ii<5; ii++)
    {
    digitalWrite(led, HIGH);  
    delay(100);               
    digitalWrite(led, LOW);   
    delay(100);                     
    }

}

//-----------------------------------------------------------------------------------
void loop() 
  {
  counter++;
  delay(100);
  if(counter == 10)
    {
    soft_restart();    
    }
  }

But it didn't work at all. Is something wrong with my code or is there a better solution?

My goal is to restart the ATTiny85 if one output pin is active for more than a few seconds (4 to 6 is no problem).

Can someone get me on the right track please.

2

Have you considered using the watchdog timer to reset the processor if it becomes unresponsive?

3

Thanks for the reply!

No, watchdog was not my first option. But I have read about it. Does the Arduino watchdog library support ATTiny85?
Any link to information on how to set it up on the ATTiny85 would be appreciated.