ea47bf9f22
Implements an advanced pulsometer that can be recalibrated by the user. The main clock face now displays the measured pulses per minute. The day of month digits now display the pulsometer calibration. The light button now cycles through integer graduations which now range from 1 to 39 pulses per minute. Long presses of the light button cycle by 10 instead of 1. The watch face's responsiveness to input has been carefully optimized. The code has been reorganized and generally improved.
78 lines
3.2 KiB
C
78 lines
3.2 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2022 Joey Castillo
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef PULSOMETER_FACE_H_
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#define PULSOMETER_FACE_H_
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/*
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* PULSOMETER face
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*
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* The Pulsometer is an implementation of a sort of a classic mechanical
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* watch complication. A classic pulsometer complication involves a
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* chronograph with a scale calibrated for counting a certain number of
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* heartbeats (often 30). You start it and begin counting heartbeats, and
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* stop it after counting the specified number of beats. Once stopped,
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* the needle will point to your heart rate.
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*
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* The pulsometer on Sensor Watch flashes its instructions at launch:
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* “Hold Alarm + count 30 beats.” Using the hand on the side where you wear
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* your watch, touch your carotid artery (in your neck) and feel for your
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* pulse. Once you find it, use your other hand to press and hold the Alarm
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* button, and count your heartbeats. When you reach 30 beats, release the
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* Alarm button. The display will show a number such as “60 bpm”; this is
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* your heart rate in beats per minute.
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*
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* Two notes:
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* o For the first few seconds of a measurement, the display will read “Hi”.
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* This indicates that it’s too early for the measured value to be a valid
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* heart rate. Once the measurement is below 240 bpm, the display will update.
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* o If you hold the button down for more than 45 seconds, the display will
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* read “Lo”. If it took this long for you to count 30 heartbeats, this
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* indicates that your heart rate is below 40 beats per minute.
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*/
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#include "movement.h"
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typedef struct {
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bool measuring;
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int16_t pulses;
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int16_t ticks;
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int8_t calibration;
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} pulsometer_state_t;
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void pulsometer_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
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void pulsometer_face_activate(movement_settings_t *settings, void *context);
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bool pulsometer_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
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void pulsometer_face_resign(movement_settings_t *settings, void *context);
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#define pulsometer_face ((const watch_face_t){ \
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pulsometer_face_setup, \
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pulsometer_face_activate, \
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pulsometer_face_loop, \
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pulsometer_face_resign, \
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NULL, \
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})
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#endif // PULSOMETER_FACE_H_
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