Other Parts Discussed in Thread: CC3220SF-LAUNCHXL, ,
Hi, while reading the datasheet, looks like the green LED is used for measuring the heart rate. Whereas the red LED is used for measuring the SpO2 application.
I use CC3220SF-LAUNCHXL and a custom AFE4403 module that uses the SPH7050. These are my questions.
1. Is it not possible to turn on both green and red LEDs from SPH7050?
In other words, I cannot measure both the heart rate and the SpO2 at the same time?
2. Is the green LED is mandatory for HRM (Heart Rate Monitoring) application?
In the datasheet, it doesn't say that I must use the green LED for HRM.
I'm curious whether I can calculate both the heart rate and the SpO2 at the same time with a single LED (green or red, if I can only use one LED).
Although, TI's SLAA655 says that "The periodicity of the PPG signal corresponds to the heart rate.", I wanted to check this part since I think the green LED can give better HRM results if this guess is correct.
3. I read about the AFE4403EVM source code.
The AFE4403EVM_FW_SRCv2.3 doesn't calculate the heart rate or SpO2; it sends the LED values to the computer via USB.
Is the MPS430F5529 not fast enough to calculate the heart rate or the SpO2?
Although showing these with GUI is great, I was curious if there were any attempts to calculate these values with an MSP430 series or CC32xx MCU series.
4. Lastly, TI's SLAA655 doesn't go into the details of the SpO2 calculation.
Are there resources available for heart rate/SpO2 calculation from TI or other sources?
Thanks for your time.