#define CYCLE       1000
#define W_0         600
#define W_1         400

#define INTRO_1     1500
#define INTRO_0     1500

#define OUTRO_1     1500


void report(int pin, unsigned long count)
{
    char msg[16] = {'T', 'Z', 'S', 0x04, 'C', 'o', 'u', 'n', 't', ':'};
    msg[10] = (count >> 8) & 0xff;
    msg[11] = count & 0xff;
    send_msg(pin, msg, 12);
}

void send_msg(int pin, char * bp, int n)
{
    intro(pin);
    send_bytes(pin, bp, n);
    //outro(pin);
}

void send_bytes(int pin, char * bp, int n)
{
    while (n-- > 0) {
        int b = *bp++ & 0xff;
        int m = 0x80;
        while (m != 0) {
            int w = (b & m) ? W_1 : W_0;
            digitalWrite(pin, HIGH);
            delayMicroseconds(w);
            digitalWrite(pin, LOW);
            delayMicroseconds(CYCLE-w);
            m >>= 1;
        }
    }
}

void intro(int pin)
{
    digitalWrite(pin, HIGH);
    delayMicroseconds(INTRO_1);
    digitalWrite(pin, LOW);
    delayMicroseconds(INTRO_0);
}

void outro(int pin)
{
    digitalWrite(pin, HIGH);
    delayMicroseconds(OUTRO_1);
    digitalWrite(pin, LOW);
}