Difference between revisions of "Sensor-Pulse"

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==Development==
 
==Development==
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===Preparation===
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===Program Download===
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*Make sure you build Microduino development environment. If not, please refer to: [[Microduino Getting started]]
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*Download and unzip the program '''[[File:Sensor-Pulse_Test.zip]]'''
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*Core module selection 
 
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**1.Adopt [[Microduino-CoreUSB]] or [[mCookie-CoreUSB]].
 
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**2.Adopt [[Microduino-Core]] or [[Microduino-Core+]] together with [[Microduino-USBTTL]] for program download.
 
  
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===Program===
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===Programming===
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{{Upload
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|nameA=[[Microduino-Core]], [[Microduino-USBTTL]]
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|nameB=[[Microduino-USBTTL]]
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|boardName=Microduino/mCookie-Core(328p), Atmega328P@16M,5V
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|fileName=Sensor-Pulse Test.ino
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}}
  
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*Test Program:
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===Hardware Setup===
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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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*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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===Hardware Buildup===
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===Result===
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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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*After download, open the serial monitor.  
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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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*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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*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==

Revision as of 08:09, 10 November 2016

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
  • Pins of the sensor:
    • PIN1: GND
    • PIN2: VCC
    • General signal pins:
      • PIN3(IO1): digital/analog signal
      • PIN4(IO2): NC(null)
    • Special signal pins:
      • If it is IIC: IO1/IO2 are respectively SDA/SCL.
      • If it is soft serial port: IO1/IO2 are respectively tx/rx.
  • Special to Sensor-Pulse sensor pins
    • PIN1: GND
    • PIN2: VCC
    • PIN3(IO1): Analog read
    • PIN4(IO2): NC


Microduino sensor can communicate with core module through the connection with Microduino-Module Sensor Hub.

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

Microduino-Pulse sensor can be applied in smart hand belt, detecting heartbeats during physical exercise so that you can adjust yourself.


Project

Purchase

History

Pictures

  • Front
Microduino-Cube-Station Front
  • Back
Microduino-Cube-Station Back
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