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add fractional beats to beat time app

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This commit is contained in:
Joey Castillo 2021-09-30 16:32:30 -04:00
parent d72a2ff6a1
commit 20db34a9c0
1 changed files with 33 additions and 8 deletions
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41
apps/beats-time/app.c
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@ -4,6 +4,7 @@
#include "watch.h"
const uint8_t UTC_OFFSET = 4; // set to your current UTC offset to see correct beats time
const uint8_t BEAT_REFRESH_FREQUENCY = 8;
typedef enum ApplicationMode {
MODE_CLOCK = 0, // Displays month, day and current time.
@ -21,6 +22,8 @@ typedef struct ApplicationState {
uint8_t light_ticks; // Timeout for the light
bool led_on; // Indicates that the LED is on
uint8_t page; // Tracks the current page in log, prefs or settings.
uint8_t last_second; // lets us see when the second changed, for subsecond timing
uint8_t subsecond; // a value from 0 to (BEAT_REFRESH_FREQUENCY - 1) indicating the fractional second
} ApplicationState;
void do_clock_mode();
@ -29,12 +32,13 @@ void do_set_time_mode();
void set_time_mode_handle_primary_button();
void set_time_mode_handle_secondary_button();
uint16_t clock2beats(uint16_t, uint16_t, uint16_t, int16_t);
float clock2beats(uint16_t, uint16_t, uint16_t, int16_t);
void cb_light_pressed();
void cb_mode_pressed();
void cb_alarm_pressed();
void cb_tick();
void cb_fast_tick();
ApplicationState application_state;
char buf[16] = {0};
@ -69,11 +73,21 @@ void app_prepare_for_sleep() {
void app_wake_from_sleep() {
}
void update_tick_frequency() {
watch_rtc_disable_all_periodic_callbacks();
if (application_state.mode == MODE_BEATS) {
watch_rtc_register_periodic_callback(cb_fast_tick, BEAT_REFRESH_FREQUENCY);
} else {
watch_rtc_register_tick_callback(cb_tick);
}
}
bool app_loop() {
// play a beep if the mode has changed in response to a user's press of the MODE button
if (application_state.mode_changed) {
// low note for nonzero case, high note for return to clock
watch_buzzer_play_note(application_state.mode ? BUZZER_NOTE_C7 : BUZZER_NOTE_C8, 100);
update_tick_frequency();
application_state.mode_changed = false;
}
@ -81,6 +95,7 @@ bool app_loop() {
if (application_state.mode != MODE_CLOCK && application_state.mode_ticks == 0) {
application_state.mode = MODE_CLOCK;
application_state.mode_changed = true;
update_tick_frequency();
}
// If the LED is off and should be on, turn it on
@ -135,22 +150,22 @@ void do_beats_mode() {
watch_clear_colon();
watch_date_time date_time = watch_rtc_get_date_time();
uint16_t beats = clock2beats(date_time.unit.hour, date_time.unit.minute, date_time.unit.second, UTC_OFFSET);
sprintf(buf, "bt %04d ", beats);
float beats = clock2beats(date_time.unit.hour, date_time.unit.minute, date_time.unit.second, UTC_OFFSET);
sprintf(buf, "bt %6.0f", beats * 100);
watch_display_string(buf, 0);
}
uint16_t clock2beats(uint16_t hours, uint16_t minutes, uint16_t seconds, int16_t utc_offset) {
uint32_t beats = seconds;
float clock2beats(uint16_t hours, uint16_t minutes, uint16_t seconds, int16_t utc_offset) {
float beats = seconds + ((float)application_state.subsecond / (float)BEAT_REFRESH_FREQUENCY);
beats += 60 * minutes;
beats += (uint32_t)hours * 60 * 60;
beats += (float)hours * 60 * 60;
beats += (utc_offset + 1) * 60 * 60; // offset from utc + 1 since beats in in UTC+1
beats /= 86.4; // convert to beats
beats %= 1000; // truncate to 3 digits for overflow
while(beats > 1000) beats -= 1000; // beats %= 1000 but for a float
return (uint16_t) beats;
return beats;
}
void do_set_time_mode() {
@ -255,3 +270,13 @@ void cb_tick() {
application_state.mode_ticks--;
}
}
void cb_fast_tick() {
watch_date_time date_time = watch_rtc_get_date_time();
if (date_time.unit.second != application_state.last_second) {
application_state.last_second = date_time.unit.second;
application_state.subsecond = 0;
} else {
application_state.subsecond++;
}
}