Ks0015 keyestudio Pulse Rate Monitor - Revision history

Keyestudio: /* Resources */

2021-01-07T06:38:51Z

Resources

← Older revision		Revision as of 06:38, 7 January 2021
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	* '''PDF and Code''' <br>		* '''PDF and Code''' <br>
	https://~~drive~~.~~google~~.com/~~open?id=1JUXzCroCGLEsEJFEa70_W2AXPLepItbi~~		https://fs.keyestudio.com/KS0015

Keyestudio: /* Get One Now */

2019-04-12T05:42:16Z

Get One Now

← Older revision		Revision as of 05:42, 12 April 2019
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	*[https://www.keyestudio.com/free-shipping-keyestudio-finger-probe-heart-rate-pulse-monitor-sensor-module-for-arduino-p0015.html '''Official Website''' ]		*[https://www.keyestudio.com/free-shipping-keyestudio-finger-probe-heart-rate-pulse-monitor-sensor-module-for-arduino-p0015.html '''Official Website''' ]

	*[https://www.aliexpress.com/store/product/Free-shipping-KEYES-Finger-heartbeat-measurement-sensor-module-for-arduino/1452162_32348204940.html?spm=2114.12010615.8148356.3.4fb166d94Zbqwk Shop on aliexpress]		*[https://www.aliexpress.com/store/product/Free-shipping-KEYES-Finger-heartbeat-measurement-sensor-module-for-arduino/1452162_32348204940.html?spm=2114.12010615.8148356.3.4fb166d94Zbqwk '''Shop on aliexpress''']



	[[Category: Sensor]]		[[Category: Sensor]]

Keyestudio: /* Resources */

2019-04-12T05:41:57Z

Resources

← Older revision		Revision as of 05:41, 12 April 2019
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	==Resources ==		==Resources ==

	'''Video'''<br>		* '''Video'''<br>
	http://video.keyestudio.com/ks0015/		http://video.keyestudio.com/ks0015/

	'''PDF and Code''' <br>		* '''PDF and Code''' <br>
	https://drive.google.com/open?id=1JUXzCroCGLEsEJFEa70_W2AXPLepItbi		https://drive.google.com/open?id=1JUXzCroCGLEsEJFEa70_W2AXPLepItbi


	<br>		<br>

	==Get One Now==		==Get One Now==

Keyestudio: /* Get One Now */

2019-04-12T05:41:39Z

Get One Now

← Older revision		Revision as of 05:41, 12 April 2019
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	==Get One Now==		==Get One Now==

	[https://www.keyestudio.com/free-shipping-keyestudio-finger-probe-heart-rate-pulse-monitor-sensor-module-for-arduino-p0015.html '''Official Website''' ]		*[https://www.keyestudio.com/free-shipping-keyestudio-finger-probe-heart-rate-pulse-monitor-sensor-module-for-arduino-p0015.html '''Official Website''' ]

			*[https://www.aliexpress.com/store/product/Free-shipping-KEYES-Finger-heartbeat-measurement-sensor-module-for-arduino/1452162_32348204940.html?spm=2114.12010615.8148356.3.4fb166d94Zbqwk Shop on aliexpress]



	[[Category: Sensor]]		[[Category: Sensor]]

Keyestudio at 05:40, 12 April 2019

2019-04-12T05:40:29Z

← Older revision		Revision as of 05:40, 12 April 2019
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	Set the baud rate as 115200, you will see the data is displayed on the monitor. You can copy and paste the data to the excel, finally it will generate the corresponding picture shown below.		Set the baud rate as 115200, you will see the data is displayed on the monitor. You can copy and paste the data to the excel, finally it will generate the corresponding picture shown below.
	<br>[[File:35-1.png\|500px\|frameless\|thumb]]<br>		<br>[[File:35-1.png\|500px\|frameless\|thumb]]<br>
	<br>[[File:35-2.png\|500px\|frameless\|thumb]]~~<br>~~		<br>[[File:35-2.png\|500px\|frameless\|thumb]] [[File:35-3.png\|500px\|frameless\|thumb]]<br>
	~~<br>~~[[File:35-3.png\|500px\|frameless\|thumb]]<br>

Keyestudio at 05:40, 12 April 2019

2019-04-12T05:40:04Z

← Older revision		Revision as of 05:40, 12 April 2019
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	<br>		<br>
	==Connection Diagram ==		==Connection Diagram ==
	<br>[[File:~~152~~.png\|~~500px~~\|frameless\|thumb]]<br>		<br>[[File:Ks0015.png\|700px\|frameless\|thumb]]<br>

	<br>		<br>
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	Wire it up well as the above diagram, then upload well the code to the board and click the icon of serial monitor on the upper right corner of Arduino software. <br>		Wire it up well as the above diagram, then upload well the code to the board and click the icon of serial monitor on the upper right corner of Arduino software. <br>
	Set the baud rate as 115200, you will see the data is displayed on the monitor. You can copy and paste the data to the excel, finally it will generate the corresponding picture shown below.		Set the baud rate as 115200, you will see the data is displayed on the monitor. You can copy and paste the data to the excel, finally it will generate the corresponding picture shown below.
	<br>[[File:~~153~~.png\|500px\|frameless\|thumb]]<br>		<br>[[File:35-1.png\|500px\|frameless\|thumb]]<br>
	<br>[[File:~~153~~.png\|500px\|frameless\|thumb]]<br>		<br>[[File:35-2.png\|500px\|frameless\|thumb]]<br>
	<br>[[File:~~153~~.png\|500px\|frameless\|thumb]]<br>		<br>[[File:35-3.png\|500px\|frameless\|thumb]]<br>

Keyestudio at 05:36, 12 April 2019

2019-04-12T05:36:34Z

← Older revision		Revision as of 05:36, 12 April 2019
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			<br>
	==Introduction==		==Introduction==
	This module uses a ultra-bright infrared LED and a phototransistor to detect the pulse of your finger. The red LED then flashes in time with your pulse.		This module uses a ultra-bright infrared (IR) LED and a phototransistor to detect the pulse in your finger. The red LED then flashes in time with your pulse. <br>
	Working ~~Principle~~: Shine the bright LED onto one side of your finger while the		'''Working principle:''' <br>
	phototransistor on the other side of your finger picks up the amount of transmitted light. The resistance of the phototransistor will vary slightly as the blood pulses through your finger.		Shine the bright LED onto one side of your finger while the phototransistor on the other side of your finger picks up the amount of transmitted light. <br>
			The resistance of the phototransistor will vary slightly as the blood pulses through your finger.
	<br>[[File:Ks0015-2.png\|500px\|frameless\|thumb]]<br>		<br>[[File:Ks0015-2.png\|500px\|frameless\|thumb]]<br>

			<br>
	==Connection Diagram ==		==Connection Diagram ==

	<br>[[File:152.png\|500px\|frameless\|thumb]]<br>		<br>[[File:152.png\|500px\|frameless\|thumb]]<br>

			<br>
	==Sample Code ==		==Sample Code ==
			Copy and paste the code below to Arduino software.<br>
	~~The program for this project is quite tricky to get right. Indeed, the first step is not to run~~ the ~~entire~~
	~~final script, but rather a test script that will gather data that we can then paste into a spreadsheet and chart~~ to ~~test out the smoothing algorithm (more on this later).~~
	~~The test script is provided in Listing Project 12~~.
	<pre>		<pre>
	int ledPin = 13;		int ledPin = 13;
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	static double oldValue = 0;		static double oldValue = 0;
	static double oldChange = 0;		static double oldChange = 0;
	int rawValue =		int rawValue = analogRead(sensorPin);
	analogRead(sensorPin);		double value = alpha * oldValue + (1 - alpha) * rawValue;
	double value = alpha * oldValue
	+ (1 - alpha) * rawValue;
	Serial.print(rawValue);		Serial.print(rawValue);
	Serial.print(",");		Serial.print(",");
	Serial.println(value);		Serial.println(value);
	oldValue = value;		oldValue = value;

	delay(period);		delay(period);
	}		}
	</pre>		</pre>

	~~This script reads the raw signal from the analog input and applies the smoothing function and then~~		<br>
	~~writes both values to the Serial Monitor, where we can capture them and paste them into a spreadsheet for analysis. Note that the Serial Monitor’s communications is set to its fastest rate to~~		==Result==
	~~minimize the effects of the delays caused by sending~~ the ~~data. When you start the Serial Monitor~~, ~~you will need to change~~ the ~~serial speed~~ to ~~115200 baud.~~		Wire it up well as the above diagram, then upload well the code to the board and click the icon of serial monitor on the upper right corner of Arduino software. <br>
	~~Copy and paste~~ the ~~captured text into a spreadsheet. The resultant data and a line chart drawn from the two columns are shown in Figure 5-17. The more jagged trace is from the raw data read from the analog port,~~ and the ~~smoother trace clearly has most~~ of the ~~noise removed. If the smoothed trace shows significant noise—in particular, any false peaks that will confuse the monitor—increase the level~~ of ~~smoothing by decreasing the value of alpha~~.		Set the baud rate as 115200, you will see the data is displayed on the monitor. You can copy and paste the data to the excel, finally it will generate the corresponding picture shown below.
	~~Once you have found~~ the ~~right value of alpha for your sensor arrangement~~, you ~~can transfer this~~		<br>[[File:153.png\|500px\|frameless\|thumb]]<br>
	~~value into~~ the ~~real sketch and switch over to using the real sketch rather than the test sketch. The real sketch~~ is ~~provided in the following listing~~ on the ~~next page~~.		<br>[[File:153.png\|500px\|frameless\|thumb]]<br>
			<br>[[File:153.png\|500px\|frameless\|thumb]]<br>
	~~<pre>~~
	~~int ledPin = 13;~~
	~~int sensorPin = 0;~~
	~~double alpha = 0.75;~~
	~~int period = 20;~~
	~~double change = 0.0;~~
	~~void setup()~~
	{
	~~pinMode(ledPin, OUTPUT);~~
	~~Serial.begin(115200);~~
	}
	~~void loop()~~
	{
	~~static double oldValue = 0;~~
	~~static double oldChange = 0;~~
	~~int rawValue =~~
	~~analogRead(sensorPin);~~
	~~double value = alpha * oldValue~~
	~~+ (1 - alpha) * rawValue;~~
	~~Serial.print(rawValue);~~
	~~Serial.print(",");~~
	~~Serial.println(value);~~
	~~oldValue = value;~~
	~~delay(period);~~
	}
	~~</pre>~~
	~~LISTING PROJECT 12—TEST SCRIPT~~
	~~There now just remains the problem of detecting the peaks. Looking at Figure 5-17, we~~ can ~~see that if we keep track of the previous reading, we can see that the readings are gradually increasing~~
	~~until the change in reading flips over~~ and ~~becomes negative. So, if we lit~~ the ~~LED whenever~~ the ~~old change was positive but the new change was negative~~, ~~we would get a brief pulse from the LED at the peak of each pulse. Putting It All Together Both the test and real sketch for Project 12 are in your Arduino Sketchbook. For instructions on downloading~~ it to the ~~board, see Chapter 1~~.
	~~As mentioned, getting this project to work is a little tricky~~. ~~You will probably find that you have to~~
	~~get your finger in just the right place to start getting a pulse~~. ~~If you are having trouble, run the~~
	~~test script as described previously to check that your detector is getting a pulse and the smoothing~~
	~~factor alpha is low enough~~.

	~~<br>[[File:153.png\|500px\|frameless\|thumb]]<br>~~

			<br>
	==Resources ==		==Resources ==

	'''Video'''		'''Video'''<br>
			http://video.keyestudio.com/ks0015/

	~~http~~://~~www~~.~~keyestudio~~.com/~~wp/ks0015/~~		'''PDF and Code''' <br>
			https://drive.google.com/open?id=1JUXzCroCGLEsEJFEa70_W2AXPLepItbi

	~~'''PDF'''~~

	~~https://drive.google.com/open?id~~=~~1hj_lQm3yU5dgQn5EQ6D8L8MC1t8IMGDc~~		<br>
			==Get One Now==

	~~==Get One Now==~~		[https://www.keyestudio.com/free-shipping-keyestudio-finger-probe-heart-rate-pulse-monitor-sensor-module-for-arduino-p0015.html '''Official Website''' ]
	'''Official Website'''

	~~http://www.keyestudio.com/keyestudio-pulse-rate-monitor-sensor-module.html~~

	[[Category: Sensor]]		[[Category: Sensor]]

Keyestudio: /* Sample Code */

2018-06-11T09:05:55Z

Sample Code

← Older revision		Revision as of 09:05, 11 June 2018
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	+ (1 - alpha) * rawValue;		+ (1 - alpha) * rawValue;
	Serial.print(rawValue);		Serial.print(rawValue);
	Serial.print(“,”);		Serial.print(",");
	Serial.println(value);		Serial.println(value);
	oldValue = value;		oldValue = value;

	delay(period);		delay(period);
	}</pre>		}
			</pre>

	This script reads the raw signal from the analog input and applies the smoothing function and then		This script reads the raw signal from the analog input and applies the smoothing function and then
	writes both values to the Serial Monitor, where we can capture them and paste them into a spreadsheet for analysis. Note that the Serial Monitor’s communications is set to its fastest rate to		writes both values to the Serial Monitor, where we can capture them and paste them into a spreadsheet for analysis. Note that the Serial Monitor’s communications is set to its fastest rate to
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	+ (1 - alpha) * rawValue;		+ (1 - alpha) * rawValue;
	Serial.print(rawValue);		Serial.print(rawValue);
	Serial.print(“,”);		Serial.print(",");
	Serial.println(value);		Serial.println(value);
	oldValue = value;		oldValue = value;
	delay(period);		delay(period);
	}</pre>		}
			</pre>
	LISTING PROJECT 12—TEST SCRIPT		LISTING PROJECT 12—TEST SCRIPT
	There now just remains the problem of detecting the peaks. Looking at Figure 5-17, we can see that if we keep track of the previous reading, we can see that the readings are gradually increasing		There now just remains the problem of detecting the peaks. Looking at Figure 5-17, we can see that if we keep track of the previous reading, we can see that the readings are gradually increasing
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	factor alpha is low enough.		factor alpha is low enough.

	<br>[[File:153.png\|500px\|frameless\|thumb]]<br>		<br>[[File:153.png\|500px\|frameless\|thumb]]<br>

	==Resources ==		==Resources ==

Keyestudio: /* Resources */

2018-04-19T08:10:10Z

Resources

← Older revision		Revision as of 08:10, 19 April 2018
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	'''Video'''		'''Video'''

	http://www.keyestudio.com/wp~~/2016/05~~/ks0015~~-keyestudio-pulse-rate-monitor~~/		http://www.keyestudio.com/wp/ks0015/

	'''PDF'''		'''PDF'''

Keyestudio: /* Introduction */

2018-03-20T03:54:44Z

Introduction

← Older revision		Revision as of 03:54, 20 March 2018
Line 3:		Line 3:
	Working Principle: Shine the bright LED onto one side of your finger while the		Working Principle: Shine the bright LED onto one side of your finger while the
	phototransistor on the other side of your finger picks up the amount of transmitted light. The resistance of the phototransistor will vary slightly as the blood pulses through your finger.		phototransistor on the other side of your finger picks up the amount of transmitted light. The resistance of the phototransistor will vary slightly as the blood pulses through your finger.
	<br>[[File:~~KS0015 (3)~~.~~jpg~~\|500px\|frameless\|thumb]]<br>		<br>[[File:Ks0015-2.png\|500px\|frameless\|thumb]]<br>

	==Connection Diagram ==		==Connection Diagram ==