Host software for the MAXREFDES220 Heart Rate Monitor Smart Sensor. Hosted on the MAX32630FTHR.
Dependencies: max32630fthr USBDevice
Fork of MAXREFDES220_HEART_RATE_MONITOR by
Finger Heart Rate Monitor and SpO2 Monitor
The MAXREFDES220 Smart Sensor FeatherWing board is a integrated solution for providing finger-based heart rate measurements and SpO2 (blood oxygen saturation). This evaluation board interfaces to the host computer using the I2C interface. Heart rate outpu is available in beats per minute (BPM) and SpO2 is reported in percentages.; the PPG (photoplethysmography) raw data is also available. The board has an MAX30101 chip which is a low power heart rate monitor with adjustable sample rates and adjustable LED currents. The low cost MAX32664 microcontroller is pre-flashed with C code for finger-based pulse rate and SpO2 monitoring. Bootloader software is included to allow for future algorithms or updates to the algorithm from Maxim Integrated.
Ordering information will be available soon.
Note: SpO2 values are not calibrated. Calibration should be performed using the final end product.
Warning
The MAXREFDES220 source code listed is dated and only compatible with the 1.2.8a.msbl. The latest sample host source code is available on the MAX32664 website.
MAXREFDES220 FeatherWing Pinout Connections
Utilities/LEDStatus.h@8:0f55f59ca341, 2018-07-02 (annotated)
- Committer:
- keremsahin
- Date:
- Mon Jul 02 21:07:27 2018 +0000
- Revision:
- 8:0f55f59ca341
- Parent:
- 6:af745c7b8520
MAX30001/MAX30205/MAX8614X driver updates; EcgComm/TempComm/MAX30101Comm updates; Bootloader updates; EventStats/LEDStatus updates
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Shaun Kelsey |
6:af745c7b8520 | 1 | /******************************************************************************* |
Shaun Kelsey |
6:af745c7b8520 | 2 | * Author: Shaun Kelsey, shaun.kelsey@maximintegrated.com |
Shaun Kelsey |
6:af745c7b8520 | 3 | * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved. |
Shaun Kelsey |
6:af745c7b8520 | 4 | * |
Shaun Kelsey |
6:af745c7b8520 | 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
Shaun Kelsey |
6:af745c7b8520 | 6 | * copy of this software and associated documentation files (the "Software"), |
Shaun Kelsey |
6:af745c7b8520 | 7 | * to deal in the Software without restriction, including without limitation |
Shaun Kelsey |
6:af745c7b8520 | 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
Shaun Kelsey |
6:af745c7b8520 | 9 | * and/or sell copies of the Software, and to permit persons to whom the |
Shaun Kelsey |
6:af745c7b8520 | 10 | * Software is furnished to do so, subject to the following conditions: |
Shaun Kelsey |
6:af745c7b8520 | 11 | * |
Shaun Kelsey |
6:af745c7b8520 | 12 | * The above copyright notice and this permission notice shall be included |
Shaun Kelsey |
6:af745c7b8520 | 13 | * in all copies or substantial portions of the Software. |
Shaun Kelsey |
6:af745c7b8520 | 14 | * |
Shaun Kelsey |
6:af745c7b8520 | 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
Shaun Kelsey |
6:af745c7b8520 | 16 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
Shaun Kelsey |
6:af745c7b8520 | 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
Shaun Kelsey |
6:af745c7b8520 | 18 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
Shaun Kelsey |
6:af745c7b8520 | 19 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
Shaun Kelsey |
6:af745c7b8520 | 20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
Shaun Kelsey |
6:af745c7b8520 | 21 | * OTHER DEALINGS IN THE SOFTWARE. |
Shaun Kelsey |
6:af745c7b8520 | 22 | * |
Shaun Kelsey |
6:af745c7b8520 | 23 | * Except as contained in this notice, the name of Maxim Integrated |
Shaun Kelsey |
6:af745c7b8520 | 24 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
Shaun Kelsey |
6:af745c7b8520 | 25 | * Products, Inc. Branding Policy. |
Shaun Kelsey |
6:af745c7b8520 | 26 | * |
Shaun Kelsey |
6:af745c7b8520 | 27 | * The mere transfer of this software does not imply any licenses |
Shaun Kelsey |
6:af745c7b8520 | 28 | * of trade secrets, proprietary technology, copyrights, patents, |
Shaun Kelsey |
6:af745c7b8520 | 29 | * trademarks, maskwork rights, or any other form of intellectual |
Shaun Kelsey |
6:af745c7b8520 | 30 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
Shaun Kelsey |
6:af745c7b8520 | 31 | * ownership rights. |
Shaun Kelsey |
6:af745c7b8520 | 32 | ******************************************************************************* |
Shaun Kelsey |
6:af745c7b8520 | 33 | */ |
keremsahin | 8:0f55f59ca341 | 34 | #ifdef ENABLE_LED_STATUS |
Shaun Kelsey |
6:af745c7b8520 | 35 | #ifndef _LEDSTATUS_H_ |
Shaun Kelsey |
6:af745c7b8520 | 36 | #define _LEDSTATUS_H_ |
Shaun Kelsey |
6:af745c7b8520 | 37 | #include "mbed.h" |
Shaun Kelsey |
6:af745c7b8520 | 38 | |
Shaun Kelsey |
6:af745c7b8520 | 39 | class LEDStatus |
Shaun Kelsey |
6:af745c7b8520 | 40 | { |
Shaun Kelsey |
6:af745c7b8520 | 41 | public: |
Shaun Kelsey |
6:af745c7b8520 | 42 | |
Shaun Kelsey |
6:af745c7b8520 | 43 | /** Create an LED_Status controller |
Shaun Kelsey |
6:af745c7b8520 | 44 | * |
Shaun Kelsey |
6:af745c7b8520 | 45 | * @param red PinName of red LED |
Shaun Kelsey |
6:af745c7b8520 | 46 | * @param rstate Initial state of red LED |
Shaun Kelsey |
6:af745c7b8520 | 47 | * @param green PinName of green LED |
Shaun Kelsey |
6:af745c7b8520 | 48 | * @param gstate Initial state of green LED |
Shaun Kelsey |
6:af745c7b8520 | 49 | * @param blue PinName of blue LED |
Shaun Kelsey |
6:af745c7b8520 | 50 | * @param bstate Initial state of blue LED |
Shaun Kelsey |
6:af745c7b8520 | 51 | */ |
Shaun Kelsey |
6:af745c7b8520 | 52 | LEDStatus(PinName red, int rstate, PinName green, int gstate, PinName blue, int bstate); |
Shaun Kelsey |
6:af745c7b8520 | 53 | |
Shaun Kelsey |
6:af745c7b8520 | 54 | /** Set the active state of each LED |
Shaun Kelsey |
6:af745c7b8520 | 55 | * |
Shaun Kelsey |
6:af745c7b8520 | 56 | * @param rstate active state of red LED |
Shaun Kelsey |
6:af745c7b8520 | 57 | * @param gstate active state of green LED |
Shaun Kelsey |
6:af745c7b8520 | 58 | * @param bstate active state of blue LED |
Shaun Kelsey |
6:af745c7b8520 | 59 | */ |
Shaun Kelsey |
6:af745c7b8520 | 60 | void set_state(int rstate, int gstate, int bstate); |
Shaun Kelsey |
6:af745c7b8520 | 61 | |
Shaun Kelsey |
6:af745c7b8520 | 62 | /** Set and keep the LEDs in their active state */ |
Shaun Kelsey |
6:af745c7b8520 | 63 | void solid(); |
Shaun Kelsey |
6:af745c7b8520 | 64 | |
Shaun Kelsey |
6:af745c7b8520 | 65 | /** Set the LEDs to toggle between their active state and their off state |
Shaun Kelsey |
6:af745c7b8520 | 66 | * |
Shaun Kelsey |
6:af745c7b8520 | 67 | * @param ontime The amount of time (in milliseconds) to remain in the active state |
Shaun Kelsey |
6:af745c7b8520 | 68 | * @param offtime The amount of time (in milliseconds) to remain off |
Shaun Kelsey |
6:af745c7b8520 | 69 | * @param nb The number of times to blink before remaining in the off state |
Shaun Kelsey |
6:af745c7b8520 | 70 | * Set to -1 to blink indefinitely |
Shaun Kelsey |
6:af745c7b8520 | 71 | * |
Shaun Kelsey |
6:af745c7b8520 | 72 | */ |
Shaun Kelsey |
6:af745c7b8520 | 73 | void blink(int ontime, int offtime, int nb = -1); |
Shaun Kelsey |
6:af745c7b8520 | 74 | |
Shaun Kelsey |
6:af745c7b8520 | 75 | /** Set the LEDs to toggle between their active state and their off state |
Shaun Kelsey |
6:af745c7b8520 | 76 | * |
Shaun Kelsey |
6:af745c7b8520 | 77 | * @param period The period of each blink (in milliseconds) |
Shaun Kelsey |
6:af745c7b8520 | 78 | * @param offtime The percentage of the period during which the LEDs will be in their active state |
Shaun Kelsey |
6:af745c7b8520 | 79 | * @param nb The number of times to blink before remaining in the off state |
Shaun Kelsey |
6:af745c7b8520 | 80 | * Set to -1 to blink indefinitely |
Shaun Kelsey |
6:af745c7b8520 | 81 | */ |
Shaun Kelsey |
6:af745c7b8520 | 82 | void blink(int period, float duty, int nb = -1); |
Shaun Kelsey |
6:af745c7b8520 | 83 | |
Shaun Kelsey |
6:af745c7b8520 | 84 | /** Get whether LEDState is in the blinking state |
Shaun Kelsey |
6:af745c7b8520 | 85 | */ |
Shaun Kelsey |
6:af745c7b8520 | 86 | bool is_blinking(); |
Shaun Kelsey |
6:af745c7b8520 | 87 | |
Shaun Kelsey |
6:af745c7b8520 | 88 | /** Called in main loop of program to advance the state of the class |
Shaun Kelsey |
6:af745c7b8520 | 89 | * @detail Instead of using a Ticker and generating additional interrupts and overhead, |
Shaun Kelsey |
6:af745c7b8520 | 90 | * LEDStatus relies on update being called at a decent interval in order |
Shaun Kelsey |
6:af745c7b8520 | 91 | * to advance its interval time keeping and blink LEDs and the correct rate. |
Shaun Kelsey |
6:af745c7b8520 | 92 | * If only using solid() mode, update() does not need to be called. |
Shaun Kelsey |
6:af745c7b8520 | 93 | */ |
Shaun Kelsey |
6:af745c7b8520 | 94 | void update(); |
Shaun Kelsey |
6:af745c7b8520 | 95 | |
Shaun Kelsey |
6:af745c7b8520 | 96 | private: |
Shaun Kelsey |
6:af745c7b8520 | 97 | |
Shaun Kelsey |
6:af745c7b8520 | 98 | DigitalOut rLED; |
Shaun Kelsey |
6:af745c7b8520 | 99 | DigitalOut gLED; |
Shaun Kelsey |
6:af745c7b8520 | 100 | DigitalOut bLED; |
Shaun Kelsey |
6:af745c7b8520 | 101 | |
Shaun Kelsey |
6:af745c7b8520 | 102 | int r_act; |
Shaun Kelsey |
6:af745c7b8520 | 103 | int g_act; |
Shaun Kelsey |
6:af745c7b8520 | 104 | int b_act; |
Shaun Kelsey |
6:af745c7b8520 | 105 | |
Shaun Kelsey |
6:af745c7b8520 | 106 | bool blinking; |
Shaun Kelsey |
6:af745c7b8520 | 107 | bool bs; |
Shaun Kelsey |
6:af745c7b8520 | 108 | int count; |
Shaun Kelsey |
6:af745c7b8520 | 109 | int total; |
Shaun Kelsey |
6:af745c7b8520 | 110 | |
Shaun Kelsey |
6:af745c7b8520 | 111 | uint64_t ont_us; |
Shaun Kelsey |
6:af745c7b8520 | 112 | uint64_t offt_us; |
Shaun Kelsey |
6:af745c7b8520 | 113 | |
Shaun Kelsey |
6:af745c7b8520 | 114 | Timer timer; |
Shaun Kelsey |
6:af745c7b8520 | 115 | |
Shaun Kelsey |
6:af745c7b8520 | 116 | }; |
Shaun Kelsey |
6:af745c7b8520 | 117 | |
Shaun Kelsey |
6:af745c7b8520 | 118 | #endif |
keremsahin | 8:0f55f59ca341 | 119 | #endif //ENABLE_LED_STATUS |