Description

• CheckForBeat() function is modified
  • Now, you can choose to skip the DC estimator inside the checkForBeat function and use a simple IIR HPF in the calling function. For us, it is processHeartRate in EmotiBit.cpp
  • The low pass filter, before peak detection, has been changed to IIR filter
• This change should support filtering for signals sampled at frequencies other than 25Hz.

Breaking changes

• This PR modifies the CheckForBeat() function call.
  • It is compatible with the firmware changes made in this PR: Feat 100 hz ppg EmotiBit_FeatherWing#244
• You will also need an additional library, linked in the requirements below

Requirements

• https://github.com/EmotiBit/EmotiBit_ArduinoFilters

Proposed future edits

• Consider moving IIR filter for heart rate out of heartrate.cpp #9

Issues Referenced

• Fixes # (issue)