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AFE4404EVM: EVM LEDs Function Understanding

Part Number: AFE4404EVM

Hi Sir, Madam,

Can I confirm for the EVM, is the green LED is used to measured heart rate while RED and IR LED is used to monitor SPO2?

What are LED 1, LED 2, LED 3 colours and what is the function of measurement in the EVM? Why only LED 1 need ambient light sensor to offset?

Can I confirm if below waveform measured by EVM normal? The red line is the starting time to put the sensor on my wrist.


Thanks. Hope to hear from you soon.