https://github.com/analogdevicesinc/max32655_max30009

MAX32655 code to communicate with the MAX30009 through SPI
https://github.com/analogdevicesinc/max32655_max30009

afe analog bio-medical bioimpedance bioz frontend galvanic gsr healthcare-application max30009 max32655 response sensors skin spi

Last synced: about 1 month ago
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MAX32655 code to communicate with the MAX30009 through SPI

• Host: GitHub
• URL: https://github.com/analogdevicesinc/max32655_max30009
• Owner: analogdevicesinc
• License: other
• Created: 2023-09-20T04:40:11.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-09-20T04:42:10.000Z (over 1 year ago)
• Last Synced: 2024-04-16T04:56:42.102Z (8 months ago)
• Topics: afe, analog, bio-medical, bioimpedance, bioz, frontend, galvanic, gsr, healthcare-application, max30009, max32655, response, sensors, skin, spi
• Language: C
• Homepage: https://www.analog.com/en/products/max30009.html
• Size: 293 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: license.txt

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README

        
## Description

This project records galvanic skin response (GSR) or electrodermal activity (EDA) using the MAX30009 with the MAX32655 microcontroller.

The values for I-Phase, Q-Phase, BIOZ and adjusted BIOZ are printed to a file that can then be analysed or plotted

## Software

### Project Usage

- As is, when run, the program will wait 100 counts and then print the Quadrature Phase, In Phase, BIOZ and adjusted BIOZ in four separate columns as below:

  

|Quad Phase|In Phase|BIOZ|Adjusted BIOZ| 

|-----|-----|-----|-----|

|12291.000000|      9556.000000|      51515.124947|      46353.879949|

|12290.000000|      9560.000000|      51520.638092|      46359.450341|

|12295.000000|      9555.000000|      51523.544096|      46362.386522|

|12293.000000|      9552.000000|      51512.227608|     46350.952527|

|12291.000000|     9556.000000 |     51515.124947|      46353.879949|

|12296.000000|      9549.000000|      51513.977253|      46352.720338|

|12294.000000|      9556.000000|      51522.962058|      46361.798440|

|12300.000000|      9559.000000|      51544.729169|      46383.791646|

|12302.000000|      9555.000000|      51541.834769|      46380.867176|

|12302.000000|      9555.000000|      51541.834769|      46380.867176|

|12290.000000|      9556.000000|      51512.512737|      46351.240616|

|12291.000000|      9551.000000|      51504.971749|      46343.621338|

|12294.000000|      9551.000000|      51512.810405|      46351.541374|

|12296.000000|      9554.000000|      51524.126552|      46362.975027|

|12293.000000|      9551.000000|      51510.197439|     46348.901280|

|12294.000000|      9554.000000|      51518.900999|      46357.695210|

|12291.000000|      9555.000000|      51513.094043|      46351.827957|

|12287.000000|      9550.000000|      51492.490675|      46331.010712|

|12293.000000|      9555.000000|      51518.318909|      46357.107075|

|12298.000000|      9556.000000|      51533.412660|      46372.357580|

|12299.000000|      9554.000000|      51531.965481|      46370.895369|

|12294.000000|      9555.000000|     51520.931462|      46359.746757|

|12286.000000|      9552.000000|      51493.939813|      46332.474891|

- These must also be printed to a separate .txt file that can be done by turning on the Toggle File Logging and choosing a Log File Directory:

![VSCode Log File](./images/Logging.png "VSCode Logging")

### Project-Specific Build Notes

-	Visual Studio Code that is capable of writing/compiling C programs.

-	MATLAB or Excel to plot outputs.

## Setup

### Hardware needed

 - Connect the MAX32655FTHR to the MAX30009EVKIT via SPI lines

 - Connect jumpers J5 and J7, leaving J4, J6, J7 and J8 open

 - Replace the capacitors C5, C6, C7 and C8 with capacitors of at least 220nF

 - Use two wet or dry electrodes on the wrist, connected 4cm apart