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Implement buzzer methods with AudioContext API

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This commit is contained in:
Alexsander Akers
2022-01-27 11:12:01 -05:00
parent 14e4562b7a
commit a0f8e9c8bc
7 changed files with 95 additions and 25 deletions
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4
watch-library/hardware/watch/watch_buzzer.c
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@@ -47,10 +47,6 @@ inline void watch_set_buzzer_off(void) {
gpio_set_pin_function(BUZZER, GPIO_PIN_FUNCTION_OFF);
}
// note: the buzzer uses a 1 MHz clock. these values were determined by dividing 1,000,000 by the target frequency.
// i.e. for a 440 Hz tone (A4 on the piano), 1MHz/440Hz = 2273
const uint16_t NotePeriods[108] = {18182,17161,16197,15288,14430,13620,12857,12134,11453,10811,10204,9631,9091,8581,8099,7645,7216,6811,6428,6068,5727,5405,5102,4816,4545,4290,4050,3822,3608,3405,3214,3034,2863,2703,2551,2408,2273,2145,2025,1911,1804,1703,1607,1517,1432,1351,1276,1204,1136,1073,1012,956,902,851,804,758,716,676,638,602,568,536,506,478,451,426,402,379,358,338,319,301,284,268,253,239,225,213,201,190,179,169,159,150,142,134,127};
void watch_buzzer_play_note(BuzzerNote note, uint16_t duration_ms) {
if (note == BUZZER_NOTE_REST) {
watch_set_buzzer_off();