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40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
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* This file is part of Espruino, a JavaScript interpreter for Microcontrollers
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*
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* Copyright (C) 2021 Gordon Williams <gw@pur3.co.uk>
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* ----------------------------------------------------------------------------
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* heart rate sensor common functions
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* ----------------------------------------------------------------------------
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*/
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#include "jsvar.h"
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#ifdef BANGLEJS_Q3
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#define HRM_POLL_INTERVAL_DEFAULT 40 // in msec - 25hz
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#else
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#define HRM_POLL_INTERVAL_DEFAULT 20 // in msec - 50hz
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#endif
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extern uint16_t hrmPollInterval; // in msec, so 20 = 50hz
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typedef void(*HrmCallback)(int ppgValue);
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/// Turn heart rate sensor on - callback called on each data point
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void hrm_sensor_on(HrmCallback callback);
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/// Turn heart rate sensor off
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void hrm_sensor_off();
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/// Get extra HRM data as a JS Object
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JsVar *hrm_sensor_getJsVar();
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/// Called when JS engine torn down (disable timer/watch/etc)
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void hrm_sensor_kill();
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/// Called when JS engine initialised
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void hrm_sensor_init();
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