#define F_CPU 1000000UL
#include <avr/io.h>
#include <avr/interrupt.h>

int delayTime;
int cur;
int dest;

ISR(TIMER1_OVF_vect) {
	cur++;
	if(cur < dest) {
		TCNT1 = delayTime;
	}
}

void startTimer(int destValue, int delay) {
	cur = 0;
	dest = destValue;
	delayTime = 256 - delay;
	TCNT1 = delayTime;
}

void sendBit(int bitValue) {
	if(bitValue == 1) {
		//560 high, 1680 low
		PORTB |= (1 << 4);
		startTimer(1, 140);

		PORTB &= ~(1 << 4);
		startTimer(2, 210);
	} else {
		//560 high, 560 low

		PORTB |= (1 << 4);
		startTimer(1, 140);

		PORTB &= ~(1 << 4);
		startTimer(1, 140);
	}


}
void sendCommand(char state) {

	PORTB |= (1 << 4);
	startTimer(50, 45);

	PORTB &= ~(1 << 4);
	startTimer(5, 225);

	int pos = 0;
	while(pos < 8) {
		sendBit((state >> pos) & 1);
		pos++;
	}

	PORTB |= (1 << 4);
	startTimer(1, 140);

	PORTB &= ~(1 << 4);
}

int main(void)
{
	DDRB = 0;
	PORTB = 0;
	DDRB |= (1 << 4);
	//PORTB |= (1 << 4);

	TCCR1 |= (1 << CS11) | (1 << CS10);
	TIMSK = 0b00000010;

	sendBit(0);
	/*
	char enable = 0xFA;
	char white = 0x2F;
	sendCommand(enable);
	sendCommand(white);
	*/
    while (1)
    {
    }
}