Difference between revisions of "Sensor-Pulse"

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[[File: Microduino-Sensor.jpg|400px|thumb|right| Microduino-Plush Sensor]]
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[[File: Microduino-Pulse.jpg|400px|thumb|right| Sensor-Pulse]]
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The product number of Sensor-Pulse is: '''MSDI31'''
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Microduino-Pulse is a heart rate or pulse sensor with high accuracy.
 
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This sensor adopts photoelectric plethysmography, which can detect heart rate and use different light transmittance caused by the human tissue in vessel pulsation to measure the pulse. With an optical amplifier to detect changes in blood volume and get human body's real-time heart rate. Generally, it can be worn on a finger tip, earlobe or other capillary ends.
 
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Sensor-Pulse is a heart rate or pulse sensor of photoelectrical principle.
  
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Sensor-Pulse takes advantage of the sensitivity of the infrared with specified wavelength to the change of the blood volume produced by the blood microcirculation in the end of the blood vessel to detect the change of fingertip blood caused by heart beat.
  
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The sensor can output the completed pulse wave voltage signal reflecting the change of the fingertip blood volume.
  
  
  
  
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==Introduction of Pins==
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{{ST_Pinout
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|st_name=Pulse Sensor
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|pin3=Analog Input
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}}
  
 
==Features==
 
==Features==
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*Low power consumption  
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*SON7015 sensor ultra-low consumption, and the power consumption is 0.2mA.
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*High flexibility
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*With small size which is easy to install.
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*Small and easy to install.  
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*Analog signal
  
 
==Specification==
 
==Specification==
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*Electrical specification  
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*Electrical specification
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**Operation voltage: 1.8V-5.5V
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**Input voltage: 3.3~5V, and 6V at most
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**Input device
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**Working current: 15uA
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*Tech parameters
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**Working temperature: -20~85℃
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**Operation temperature: -40°C-85°C
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**Output voltage: high level 5V, low level 0V
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**Lead free packaging, complying with ROHS standard. 
 
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**Supply current:  IQ = 100µA (typical)
 
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**90°phase margin(typical)
 
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**Adopt MCP6001 1MHZ low-consumption amplifier
 
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**1MHz gain bandwidth product (typical)
 
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**Adopt APDS-9008 analog input environment brightness sensor 
 
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*Size
 
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**1.27mm-pitch 4Pin interface
 
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**Size of the Switch: 5mm*5mm，
 
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**Size of the Board: 20mm*20mm
 
  
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*Connection method
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*Size
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**Pin description: GND, VCC, signal output and NC(Empty).
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**Size of the board: 23.5mm*13mm
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Note: This output signal is analog signal, which needs analog interface to detect(A0~A7). You can connect it to the pins--1,2,10,11 and 12 of the Sensorhub with correpsoinding pins-- IIC（A4）, IIC（A5）, A6, A2 and A0
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**1.27mm-spacing 4Pin interface connected with sensorhub
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[[File: Microduino-Plush Sensor_rule1.jpg|600px|thumb|center]]
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**The CAD drawing of the sensor: '''[[File:Sensor_CAD.zip]]'''
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[[File: Microduino-Plush Sensor_rule2.jpg|600px|thumb|center]]
 
  
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[[file:mCookie-sensorhub_rule.JPG|thumb|800px|center]]
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*Function description
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**After press the sensor tightly on the skin, the digital output will be 1 or 0 along with the change of the blood.
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*Connection
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**This sensor can be connected to the following interfaces of core: '''D2~D13'''
  
 
==Document==
 
==Document==
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*Chip: '''[[File: APDS-9008.pdf]]''' '''[[File: MCP6001.pdf]]'''
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*Schematic diagram: '''[[File: Sensor-Pulse.Zip]]'''
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*Schematic: '''[[File: Microduino_Pulse.Zip]]'''
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*Main chip: '''[[File:SON1303_datasheet.pdf ]]'''
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*Extension document: [https://forum.microduino.cn/topic/259/microduino%E5%BF%83%E8%B7%B3%E6%A8%A1%E5%9D%97%E4%B8%AD%E6%96%AD%E6%B3%95%E6%B5%8B%E9%87%8F%E4%B8%A4%E5%88%99%E7%AE%80%E4%BB%8B Pulse Module Interrupt Method Measurement]
  
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==Development==
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===Program Download===
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*Download and unzip the program '''[[File:Sensor-Pulse_Test.zip]]'''
  
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==Development==
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===Programming===
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===Preparation===
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{{Upload
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*Make sure you build Microduino development environment. If not, please refer to: [[Microduino Getting started]]
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|nameA=[[Microduino-Core]], [[Microduino-USBTTL]]
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*Core module selection 
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|nameB=[[Microduino-USBTTL]]
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**1.Adopt [[Microduino-CoreUSB]] or [[mCookie-CoreUSB]].
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|boardName=Microduino/mCookie-Core(328p), Atmega328P@16M,5V
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**2.Adopt [[Microduino-Core]] or [[Microduino-Core+]] together with [[Microduino-USBTTL]] for program download.  
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|fileName=Sensor-Pulse Test.ino
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}}
  
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===Program===
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===Hardware Setup===
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*Referring to the following diagram, connect the Sensor-Pulse to the digital pin D6 of '''[[Microduino-Sensorhub]]'''.
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<br>
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[[file:Microduino-sensorhub_Crash.JPG|thumb|400px|left]]
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<br style="clear: left"/>
  
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*Test Program:
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===Result===
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[https://github.com/Microduino/Microduino_Tutorials/tree/master/Microduino_Advanced_Tutorial/Microduino_Pulse_measurement Microduino_Pulse_measurement]
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*After download, open the serial monitor.  
  
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===Hardware Buildup===
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*The pulse sensor will detect the fingertip blood change caused by heart beat, and filter out some unstable elements through algorithm to get a more accurate value.
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*All hardware needed(Except core module): [[Microduino-Cube-S1]], [[Microduino-OLED]], [[Microduino-Sensorhub]] and a USB cable as well as some connectors. 
 
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*Stack all modules together, insert the pulse sensor into the A0 slot of [[Microduino-Sensorhub]] with the connector and connect [[Microduino-OLED]] with [[Microduino-Cube-S1]] board's IIC interface via an OLED wire.
 
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*Open test program, choose the right board, compile and download.
 
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*After download, you can see OLED's interaction interface. The first line shows pulse rate and the second lines displays time and calculate the total heartbeats.
 
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**The pulse sensor starts counting when you press your finger tip onto it and it will calculate heartbeats after around 10 seconds.
 
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**Move your finger away and the system will clear automatically .  
 
  
 
==Application==
 
==Application==
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Microduino-Pulse sensor can be applied in smart hand belt, detecting heartbeats during physical exercise so that you can adjust yourself.
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*Real-Time Pulse Detection
  
  
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==History==
 
==History==
  
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==Pictures==
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==Gallery==
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[[file: Microduino-Pulse-sensor-f.JPG|thumb|600px|center|Sensor-Pulse Front]]
  
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*Front
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[[file: Microduino-Pulse-sensor-b.JPG|thumb|600px|center|Sensor-Pulse Back]]
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[[file: Microduino-Plush Sensor-F.JPG|thumb|600px|center|Microduino-Cube-Station Front]]
 
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*Back
 
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[[file: Microduino-Plush Sensor -b.JPG|thumb|600px|center|Microduino-Cube-Station Back]]
 
 
|}
 
|}

Latest revision as of 23:32, 30 March 2017

Language: English  • 中文
Sensor-Pulse

The product number of Sensor-Pulse is: MSDI31

Sensor-Pulse is a heart rate or pulse sensor of photoelectrical principle.

Sensor-Pulse takes advantage of the sensitivity of the infrared with specified wavelength to the change of the blood volume produced by the blood microcirculation in the end of the blood vessel to detect the change of fingertip blood caused by heart beat.

The sensor can output the completed pulse wave voltage signal reflecting the change of the fingertip blood volume.



Introduction of Pins

Sensor backpin.png

Pulse Sensor
General Pin Out Sensor / Trinket's Pin Out
PIN1 (GND) GND
PIN2 (VCC) VCC
PIN3 (SIGNAL-A) Analog Input
PIN4 (SIGNAL-B) Not Connected
  • General Pin Out is the standard pin out of a Sensor / Trinket connector.
  • Sensor / Trinket's Pin Out is this specific Sensor / Trinket's wiring in relation to the General Pin Out.
  • SIGNAL-A / SIGNAL-B are signals that could be digital input, digital output, analog input or analog output. Or special signals such as serial communication (SoftwareSerial, IIC (I2C), etc) or other special signals.
  • Not Connected refers to the Pin not being used for this particular Sensor / Trinket.
  • Read more about the hub module.

Features

  • SON7015 sensor ultra-low consumption, and the power consumption is 0.2mA.
  • With small size which is easy to install.
  • Analog signal

Specification

  • Electrical specification
    • Input voltage: 3.3~5V, and 6V at most
    • Working current: 15uA
    • Working temperature: -20~85℃
    • Output voltage: high level 5V, low level 0V
  • Size
    • Size of the board: 23.5mm*13mm
    • 1.27mm-spacing 4Pin interface connected with sensorhub
    • The CAD drawing of the sensor: File:Sensor CAD.zip
  • Function description
    • After press the sensor tightly on the skin, the digital output will be 1 or 0 along with the change of the blood.
  • Connection
    • This sensor can be connected to the following interfaces of core: D2~D13

Document

Development

Program Download

Programming

  • Follow the Software Getting Started Guide.
  • Select the Board, Processor and Port.
  • Click [File]->[Open], browse to the project program address, and click "Sensor-Pulse Test.ino" to open the program.
  • After confirming all these items are correct, click "→" to download the program to the development board.

Hardware Setup

  • Referring to the following diagram, connect the Sensor-Pulse to the digital pin D6 of Microduino-Sensorhub.


Microduino-sensorhub Crash.JPG


Result

  • After download, open the serial monitor.
  • The pulse sensor will detect the fingertip blood change caused by heart beat, and filter out some unstable elements through algorithm to get a more accurate value.

Application

  • Real-Time Pulse Detection


Project

Purchase

History

Gallery

File:Microduino-Pulse-sensor-f.JPG
Sensor-Pulse Front
File:Microduino-Pulse-sensor-b.JPG
Sensor-Pulse Back
Retrieved from "https://wiki.microduinoinc.com/index.php?title=Sensor-Pulse&oldid=12529"