Wiring the Breakout to your Arduino
Connection with the Arduino board is as follows:
Processing is a data visualization software, in existence since 2001, used by artists and scientists alike. It’s an open source coding framework based on Java. If you are familiar with the Arduino environment, the Processing IDE is similar and you won’t have much of a learning curve to climb!
The following are the steps to run the code:1. Download Processing for your operating system
Download the Processing IDE latest version from the link
Once downloaded, unzip the archive and install the app as per your OS.2. Download the Processing code for Pulse Oximeter visualization
a. Download the necessary files & directories or clone to your desktop from GitHub.
b. Unzipping the archive should make a folder by name Pulse that contains the visualization code.
c. Locate the Processing sketchbook directory on your computer. This should have been created automatically when you installed processing. Depending on your operating system, the path will be as follows:
- On Windows: C:/My Documents/Processing/
- On MAC: /Users/your_user_name/Documents/Processing/
- On Linux: /Home/your_user_name/sketchbook/
Note: This directory appears as "Processing" on Windows/Mac, and goes by the name "Sketchbook" on Linux. Create a subdirectory by name "libraries" if one doesn't exist already.
d. From the above mentioned "Pulse" directory Copy/Move the contents of the Pulse-master/Processing/ces_view_oximeter folder to the Processing sketchbook directory which is also mentioned above (Locate the Processing sketchbook)
e. Finally, copy the G4P directories from Pulse-master\Processing\libraries and paste them into the libraries directory of your Processing sketchbook.
f. You are all set now to get your first PPG wave form and SpO2 reading visualized from the Pulse!3. Open Processing & launch the ces_view_oximeter
a. If Processing IDE was open, close it and reopen to refresh the libraries and sketches. The repositories are not refreshed if the IDE was open while the Sketches and Libraries were being updated.
b. Double-click any of the .pde files in the ces_view_oximeter directory to open all of the pulse oximeter code in the Processing IDE.
c. If everything done so far was good, clicking the "run" button on the top left corner of the IDE, should run the code! If it does not, make sure you installed your libraries correctly.
d. Once the GUI is running, select the port connect with pulse oximeter shield from the "SELECT PORT" dropdown as shown in the figure below
e. Once the port selection is appropriate the START button gets enabled. Click "START" to initiate visualization
f. You should see the PPG ( RED and IR) waves generated with the values obtained from the Pulse as shown below.
Schematics and design files
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- Medical devices by Protocentral
Published onSeptember 15, 2016
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