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faces/pulsometer: document the advanced pulsometer

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Thoroughly document the new advanced pulsometer watch face
by describing what it is and how it works.
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Matheus Afonso Martins Moreira 2024-02-21 06:05:00 -03:00
parent ea47bf9f22
commit 4b67ef56c6
1 changed files with 34 additions and 22 deletions
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movement/watch_faces/complication/pulsometer_face.h
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@ -28,28 +28,40 @@
/*
* PULSOMETER face
*
* The Pulsometer is an implementation of a sort of a classic mechanical
* watch complication. A classic pulsometer complication involves a
* chronograph with a scale calibrated for counting a certain number of
* heartbeats (often 30). You start it and begin counting heartbeats, and
* stop it after counting the specified number of beats. Once stopped,
* the needle will point to your heart rate.
*
* The pulsometer on Sensor Watch flashes its instructions at launch:
* “Hold Alarm + count 30 beats.” Using the hand on the side where you wear
* your watch, touch your carotid artery (in your neck) and feel for your
* pulse. Once you find it, use your other hand to press and hold the Alarm
* button, and count your heartbeats. When you reach 30 beats, release the
* Alarm button. The display will show a number such as “60 bpm”; this is
* your heart rate in beats per minute.
*
* Two notes:
* o For the first few seconds of a measurement, the display will read “Hi”.
* This indicates that it’s too early for the measured value to be a valid
* heart rate. Once the measurement is below 240 bpm, the display will update.
* o If you hold the button down for more than 45 seconds, the display will
* read “Lo”. If it took this long for you to count 30 heartbeats, this
* indicates that your heart rate is below 40 beats per minute.
* The pulsometer implements a classic mechanical watch complication.
* A mechanical pulsometer involves a chronograph with a scale that
* allows the user to compute the number of heart beats per minute
* in less time. The scale is calibrated, or graduated, for a fixed
* number of heart beats, most often 30. The user starts the chronograph
* and simultaneously begins counting the heart beats. The movement of
* the chronograph's seconds hand over time automatically performs the
* computations required. When the calibrated number of heart beats
* is reached, the chronograph is stopped and the seconds hand shows
* the heart rate.
*
* The Sensor Watch pulsometer improves this design with user calibration:
* it can be graduated to any value between 1 and 39 pulsations per minute.
* The default is still 30, mirroring the classic pulsometer calibration.
* This feature allows the user to reconfigure the pulsometer to count
* many other types of periodic minutely events, making it more versatile.
* For example, it can be set to 5 respirations per minute to turn it into
* an asthmometer, a nearly identical mechanical watch complication
* that doctors might use to quickly measure respiratory rate.
*
* To use the pulsometer, hold the ALARM button and count the pulses.
* When the calibrated number of pulses is reached, release the button.
* The display will show the number of pulses per minute.
*
* In order to measure heart rate, feel for a pulse using the hand with
* the watch while holding the button down with the other.
* The pulse can be easily felt on the carotid artery of the neck.
*
* In order to measure breathing rate, simply hold the ALARM button
* and count the number of breaths.
*
* To calibrate the pulsometer, press LIGHT
* to cycle to the next integer calibration.
* Long press LIGHT to cycle it by 10.
*/
#include "movement.h"