//MiniMo -- minimalistic driver firmware for momentary buttons (no blinkies)  --  DrJones 2014
//Up&Down variant ("Werner's UI")
#define F_CPU 4800000                    //use fuses  low:0x75  high:0xff
#include <avr/io.h>
#include <util/delay.h>
//change modes here; just change/add/delete values. The "0" is 'off'
uint8_t modes[]={0, 255};          //PWM values, 5..255 - LEAVE THE "0" THERE
int main() {
  DDRB=2; PORTB=8;                       //define PB1 as output and pull-up switch on PB3
  TCCR0A=0b00100001; TCCR0B=0b00000001;  //PWM setup, 9kHz


  //uint8_t count=0, lasmode=1, waspressed=0;
  uint8_t mode=0 //define some variables used below

  while(1) {                             //endless loop

    if ((PINB&8)==0) {                   //when the button is pressed (PB3 pulled down)
        mode=1;  //only one mode is needed, so if button is presses, use 100% mode

    else {  // if button is not pressed, just turn off the light
        mode=0;
    }

  OCR0B=modes[mode];                     //set PWM level (0 is off)
  _delay_ms(25);                         //wait a bit before checking again, important for counting
  }
}