--- /dev/null
+/*
+ * MIT License
+ *
+ * Copyright (c) 2024 Christian Buschau
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include "alarm_thermometer_face.h"
+#include "thermistor_driver.h"
+
+static float _alarm_thermometer_face_update(bool in_fahrenheit) {
+ thermistor_driver_enable();
+ float temperature_c = thermistor_driver_get_temperature();
+ char buf[14];
+ if (in_fahrenheit) {
+ sprintf(buf, "%4.1f#F", temperature_c * 1.8 + 32.0);
+ } else {
+ sprintf(buf, "%4.1f#C", temperature_c);
+ }
+ watch_display_string(buf, 4);
+ thermistor_driver_disable();
+ return temperature_c;
+}
+
+static void _alarm_thermometer_face_clear(int last[]) {
+ for (size_t i = 0; i < LAST_SIZE; i++) {
+ last[i] = INT_MIN;
+ }
+}
+
+void alarm_thermometer_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
+ (void) settings;
+ (void) watch_face_index;
+ if (*context_ptr == NULL) {
+ *context_ptr = malloc(sizeof(alarm_thermometer_state_t));
+ memset(*context_ptr, 0, sizeof(alarm_thermometer_state_t));
+ }
+}
+
+void alarm_thermometer_face_activate(movement_settings_t *settings, void *context) {
+ (void) settings;
+ alarm_thermometer_state_t *state = (alarm_thermometer_state_t *)context;
+ state->mode = MODE_NORMAL;
+ _alarm_thermometer_face_clear(state->last);
+ watch_display_string("AT", 0);
+}
+
+bool alarm_thermometer_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
+ alarm_thermometer_state_t *state = (alarm_thermometer_state_t *)context;
+
+ switch (event.event_type) {
+ case EVENT_ACTIVATE:
+ _alarm_thermometer_face_update(settings->bit.use_imperial_units);
+ break;
+ case EVENT_TICK:
+ if (watch_rtc_get_date_time().unit.second % 5 == 0) {
+ switch (state->mode) {
+ case MODE_NORMAL:
+ _alarm_thermometer_face_update(settings->bit.use_imperial_units);
+ break;
+ case MODE_ALARM:
+ for (size_t i = LAST_SIZE - 1; i > 0; i--) {
+ state->last[i] = state->last[i - 1];
+ }
+ state->last[0] = roundf(_alarm_thermometer_face_update(settings->bit.use_imperial_units) * 10.0f);
+ bool constant = true;
+ for (size_t i = 1; i < LAST_SIZE; i++) {
+ if (state->last[i - 1] != state->last[i]) {
+ constant = false;
+ break;
+ }
+ }
+ if (constant) {
+ state->mode = MODE_FREEZE;
+ watch_set_indicator(WATCH_INDICATOR_SIGNAL);
+ movement_play_alarm();
+ }
+ break;
+ case MODE_FREEZE:
+ break;
+ }
+ }
+ break;
+ case EVENT_ALARM_BUTTON_UP:
+ switch (state->mode) {
+ case MODE_NORMAL:
+ state->mode = MODE_ALARM;
+ watch_set_indicator(WATCH_INDICATOR_BELL);
+ _alarm_thermometer_face_clear(state->last);
+ break;
+ case MODE_FREEZE:
+ state->mode = MODE_NORMAL;
+ watch_clear_indicator(WATCH_INDICATOR_BELL);
+ watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
+ break;
+ case MODE_ALARM:
+ state->mode = MODE_NORMAL;
+ watch_clear_indicator(WATCH_INDICATOR_BELL);
+ _alarm_thermometer_face_update(settings->bit.use_imperial_units);
+ break;
+ }
+ if (settings->bit.button_should_sound) {
+ watch_buzzer_play_note(BUZZER_NOTE_C7, 50);
+ }
+ break;
+ case EVENT_ALARM_LONG_PRESS:
+ if (state->mode != MODE_FREEZE) {
+ settings->bit.use_imperial_units = !settings->bit.use_imperial_units;
+ _alarm_thermometer_face_update(settings->bit.use_imperial_units);
+ }
+ break;
+ case EVENT_LOW_ENERGY_UPDATE:
+ if (!watch_tick_animation_is_running()) {
+ state->mode = MODE_NORMAL;
+ watch_clear_indicator(WATCH_INDICATOR_BELL);
+ watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
+ watch_start_tick_animation(1000);
+ }
+ if (watch_rtc_get_date_time().unit.minute % 5 == 0) {
+ _alarm_thermometer_face_update(settings->bit.use_imperial_units);
+ watch_display_string(" ", 8);
+ }
+ break;
+ default:
+ return movement_default_loop_handler(event, settings);
+ }
+
+ return true;
+}
+
+void alarm_thermometer_face_resign(movement_settings_t *settings, void *context) {
+ (void) settings;
+ (void) context;
+}
--- /dev/null
+/*
+ * MIT License
+ *
+ * Copyright (c) 2024 Christian Buschau
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef ALARM_THERMOMETER_FACE_H_
+#define ALARM_THERMOMETER_FACE_H_
+
+#include <limits.h>
+#include "movement.h"
+
+/*
+ * ALARM THERMOMETER
+ *
+ * This watch face shows the current temperature in degrees Celsius. Press and
+ * hold the alarm button to toggle between Celsius and Fahrenheit. Press and
+ * release the alarm button to start a "timer". The watch will sound an alarm
+ * when the temperature remains constant for at least 30 seconds and the
+ * temperature will stop updating until you press the alarm button. You can
+ * cancel the alarm by pressing the button again. If the temperature doesn't
+ * remain constant until the low energy timeout is reached, the alarm will stop.
+ * This is useful to measure e.g. the room temperature. If you lay off your
+ * watch from your wrist, it will take some time until it cools down, and will
+ * notify you when the measurement is constant enough.
+ * THIS WATCH FACE IS NOT INTENDED TO DIAGNOSE, TREAT, CURE OR PREVENT ANY
+ * DISEASE.
+ */
+
+#define LAST_SIZE 6
+
+typedef enum {
+ MODE_NORMAL,
+ MODE_ALARM,
+ MODE_FREEZE
+} alarm_thermometer_mode_t;
+
+typedef struct {
+ int last[LAST_SIZE];
+ alarm_thermometer_mode_t mode;
+} alarm_thermometer_state_t;
+
+void alarm_thermometer_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
+void alarm_thermometer_face_activate(movement_settings_t *settings, void *context);
+bool alarm_thermometer_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
+void alarm_thermometer_face_resign(movement_settings_t *settings, void *context);
+
+#define alarm_thermometer_face ((const watch_face_t){ \
+ alarm_thermometer_face_setup, \
+ alarm_thermometer_face_activate, \
+ alarm_thermometer_face_loop, \
+ alarm_thermometer_face_resign, \
+ NULL, \
+})
+
+#endif // ALARM_THERMOMETER_FACE_H_