--- /dev/null
+/*
+ * MIT License
+ *
+ * Copyright (c) 2023 Mark Blyth
+ *
+ * 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 <stdlib.h>
+#include <string.h>
+#include "minmax_face.h"
+#include "thermistor_driver.h"
+#include "watch.h"
+
+
+static float _get_displayed_temperature_c(minmax_state_t *state){
+ float min_temp = 1000;
+ float max_temp = -1000;
+ for(int i = 0; i < LOGGING_DATA_POINTS; i++){
+ if(state->hourly_maxs[i] > max_temp){
+ max_temp = state->hourly_maxs[i];
+ }
+ if(state->hourly_mins[i] < min_temp){
+ min_temp = state->hourly_mins[i];
+ }
+ }
+ if(state->show_min) return min_temp;
+ return max_temp;
+}
+
+
+static void _minmax_face_log_data(minmax_state_t *logger_state) {
+ thermistor_driver_enable();
+ size_t pos = (size_t) watch_rtc_get_date_time().unit.hour;
+ float temp_c = thermistor_driver_get_temperature();
+ // If no data yet, initialise with current temperature
+ if(!logger_state->have_logged){
+ logger_state->have_logged = true;
+ for(int i=0; i<LOGGING_DATA_POINTS; i++){
+ logger_state->hourly_mins[i] = temp_c;
+ logger_state->hourly_maxs[i] = temp_c;
+ }
+ }
+ // On new hour, update lists to current temperature
+ else if(watch_rtc_get_date_time().unit.minute < 2){
+ logger_state->hourly_mins[pos] = temp_c;
+ logger_state->hourly_maxs[pos] = temp_c;
+ }
+ // Log hourly highs and lows
+ else if(logger_state->hourly_mins[pos] > temp_c){
+ logger_state->hourly_mins[pos] = temp_c;
+ }
+ else if(logger_state->hourly_maxs[pos] < temp_c){
+ logger_state->hourly_maxs[pos] = temp_c;
+ }
+ thermistor_driver_disable();
+}
+
+static void _minmax_face_update_display(float temperature_c, bool in_fahrenheit) {
+ char buf[14];
+ if (in_fahrenheit) {
+ sprintf(buf, "%4.0f#F", temperature_c * 1.8 + 32.0);
+ } else {
+ sprintf(buf, "%4.0f#C", temperature_c);
+ }
+ watch_display_string(buf, 4);
+}
+
+
+void minmax_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(minmax_state_t));
+ memset(*context_ptr, 0, sizeof(minmax_state_t));
+ }
+}
+
+
+void minmax_face_activate(movement_settings_t *settings, void *context) {
+ (void) settings;
+ minmax_state_t *state = (minmax_state_t *)context;
+ state->show_min = true;
+ watch_display_string("MN", 0); // Start with minimum temp
+}
+
+bool minmax_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
+ minmax_state_t *state = (minmax_state_t *)context;
+ float temp_c;
+
+ switch (event.event_type) {
+ case EVENT_ACTIVATE:
+ temp_c = _get_displayed_temperature_c(state);
+ _minmax_face_update_display(temp_c, settings->bit.use_imperial_units);
+ break;
+
+ case EVENT_LIGHT_LONG_PRESS:
+ settings->bit.use_imperial_units = !settings->bit.use_imperial_units;
+ temp_c = _get_displayed_temperature_c(state);
+ _minmax_face_update_display(temp_c, settings->bit.use_imperial_units);
+ break;
+
+ case EVENT_ALARM_BUTTON_UP:
+ state->show_min = !state->show_min;
+ if(state->show_min){
+ watch_display_string("MN", 0);
+ } else {
+ watch_display_string("MX", 0);
+ }
+ temp_c = _get_displayed_temperature_c(state);
+ _minmax_face_update_display(temp_c, settings->bit.use_imperial_units);
+ break;
+
+ case EVENT_TIMEOUT:
+ movement_move_to_face(0);
+ break;
+ case EVENT_BACKGROUND_TASK:
+ _minmax_face_log_data(state);
+ break;
+ default:
+ return movement_default_loop_handler(event, settings);
+ }
+ return true;
+}
+
+
+void minmax_face_resign(movement_settings_t *settings, void *context) {
+ (void) settings;
+ (void) context;
+}
+
+
+bool minmax_face_wants_background_task(movement_settings_t *settings, void *context) {
+ (void) settings;
+ (void) context;
+ // this will get called at the top of each minute; always request bg task
+ return true;
+}
--- /dev/null
+/*
+ * MIT License
+ *
+ * Copyright (c) 2023 Mark Blyth
+ *
+ * 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 MINMAX_FACE_H_
+#define MINMAX_FACE_H_
+
+#include "movement.h"
+#include "watch.h"
+
+#define LOGGING_DATA_POINTS (24)
+
+/*
+ * Log for the min. and max. temperature over the last 24h.
+ *
+ * Temperature is logged once a minute, every minute. Results are
+ * stored, noting the highest and lowest temperatures observed within
+ * any given hour. The watch face then displays the minimum or maximum
+ * temperature recorded over the last 24h.
+ *
+ * A long press of the light button changes units between Celsius and
+ * Fahrenheit. Pressing the alarm button switches between displaying the
+ * minimum and maximum observed temperatures. If no buttons are pressed,
+ * the watch face will eventually time out and return home.
+ */
+
+typedef struct {
+ bool show_min;
+ bool have_logged;
+ float hourly_mins[LOGGING_DATA_POINTS];
+ float hourly_maxs[LOGGING_DATA_POINTS];
+} minmax_state_t;
+
+void minmax_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
+void minmax_face_activate(movement_settings_t *settings, void *context);
+bool minmax_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
+void minmax_face_resign(movement_settings_t *settings, void *context);
+bool minmax_face_wants_background_task(movement_settings_t *settings, void *context);
+
+#define minmax_face ((const watch_face_t){ \
+ minmax_face_setup, \
+ minmax_face_activate, \
+ minmax_face_loop, \
+ minmax_face_resign, \
+ minmax_face_wants_background_task, \
+})
+
+#endif // MINMAX_FACE_H_
+
projects / sensor-watch.git / commitdiff