Star Wars for the TI SensorTag cc2650 on Contiki OS

starwars-contiki.c

/**
 * \file
 *         Messing around with music
 * \author
 *         Andrew Bennett <andrew.bennett@unsw.edu.au>
 */
#include "contiki.h"
#include "buzzer.h"
#include "dev/leds.h"

// set these however you like
#define NOTE_MULTIPLIER 2
#define DELAY_BETWEEN_NOTES 0.10
#define CLOCK_SECOND_DIVISOR 10.0
#define TIMING_DIVISOR (60.0*CLOCK_SECOND_DIVISOR)

float timings[] = {
1.0, 1.0, 1.0, 0.75, 0.25, 1.0, 0.75, 0.25, 2.0, 1.0, 1.0, 1.0, 0.75, 0.25, 1.0, 0.75, 0.25, 2.0, 1.0, 0.75, 0.25, 1.0, 0.75, 0.25, 0.25, 0.25, 0.5, 0.5, 1.0, 0.75, 0.25, 0.25, 0.25, 0.5, 0.5, 1.0, 0.75, 0.25, 1.0, 0.75, 0.25, 2.0, 1.0, 0.75, 0.25, 1.0, 0.75, 0.25, 0.25, 0.25, 0.5, 0.5, 1.0, 0.75, 0.25, 0.25, 0.25, 0.5, 0.5, 1.0, 0.75, 0.25, 1.0, 0.75, 0.25, 2.0
};
uint16_t notes[] = {
440, 440, 440, 349, 523, 440, 349, 523, 440, 659, 659, 659, 698, 523, 415, 349, 523, 440, 880, 440, 440, 880, 830, 784, 739, 659, 698, 466, 622, 587, 554, 523, 493, 523, 349, 415, 349, 440, 523, 440, 523, 659, 880, 440, 440, 880, 830, 784, 739, 659, 698, 466, 622, 587, 554, 523, 493, 523, 349, 415, 349, 523, 440, 349, 523, 440
};
#define SONG_LEN 66

// songs over 65535 won't fit in memory anyway
uint16_t upto = 0;

/*---------------------------------------------------------------------------*/
PROCESS(music_process, "Music!");
AUTOSTART_PROCESSES(&music_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(music_process, ev, data) {

	PROCESS_BEGIN();

	leds_toggle(LEDS_RED);	

	while (1) {
		// start the buzzer at the specified pitch, multiplied by some multiplier
		buzzer_start(notes[upto]*NOTE_MULTIPLIER);

		// wait for the duration of the note
		clock_wait(CLOCK_SECOND * timings[upto] / TIMING_DIVISOR);

		// stop the buzzer
		buzzer_stop();

		// wait before the next note
		clock_wait(CLOCK_SECOND*DELAY_BETWEEN_NOTES);

		upto++;

		// woohoo party time
		leds_toggle(LEDS_ALL);

		// loop the song
		if (upto >= SONG_LEN) {
			upto = 0;
		}
	}
	PROCESS_END(); 
}