Embedded programming
For this week I tried to use all the free pins of the tiny 44 microcontroller and added a switch and 3 LED.
My initial intention was to make traffic light with green yellow and red LED one on top of the other.
I put a lot of effort in arranging the traces so that the LED will have this certain configuration.
Eventually, I couldn’t find a yellow LED so I put a red one instead.
I put the switch in a opposing side of the LED so the thumb pressing the LED will not block the LED as it lit.

This is what the my board does:

This is the Eagle scheme file I made for the tracing the board:

This is the Eagle tracing of the board. I used a zero Ω resistor to solve the traces "puzzle" with the configuration I wanted.

I programmed the MC using C language based on the Hello FDTI example and the help from Brian.
This is the main part of the code : 
                         
   static int buttonPress;
   static int buttonUpTest;
   buttonPress=0;
   buttonUpTest=1;
   index = 0;
   static int  i;
   
// indication of initial power connections	
    set(TopLEDport,TopLEDpin);
	set(MidLEDport,MidLEDpin);
	set(BottomLEDport,BottomLEDpin);
	_delay_ms(100);
	clear(TopLEDport,TopLEDpin);
	clear(MidLEDport,MidLEDpin);
	clear(BottomLEDport,BottomLEDpin);
    
	while (1) {	
// checking if the button pressed 
// and adding 1 to the index only if it is not a continous press
		if (pin_test(SwitchInput,SwitchPin)==0){
			if (buttonUpTest){
				buttonPress=buttonPress+1;
			}
			buttonUpTest=0;
		}else{
		
			buttonUpTest=1;
		}
		
//checking the index and taking action
	if (buttonUpTest){
	switch( buttonPress ) 
		{
		case 1:
			set(TopLEDport,TopLEDpin);
			break;
		case 2:
			set(MidLEDport,MidLEDpin);
			break;
		case 3:
				set(BottomLEDport,BottomLEDpin);
				break;
		case 4:
// on the forth press, blinking and zeroing
		buttonPress=0;
		for ( i=0;i<=3;i=i+1){
			set(TopLEDport,TopLEDpin);
				set(MidLEDport,MidLEDpin);
				set(BottomLEDport,BottomLEDpin);
				_delay_ms(100);
				clear(TopLEDport,TopLEDpin);
				clear(MidLEDport,MidLEDpin);
				clear(BottomLEDport,BottomLEDpin);
				_delay_ms(100);
			}
			break;
		}
	}
}