diff options
| author | Ceimour <113631258+Ceimour@users.noreply.github.com> | 2023-04-30 08:50:18 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-04-30 15:50:18 +0200 |
| commit | c22e30a4a6ef014c7a5086ad47eaab7740a75ff2 (patch) | |
| tree | 5afdf4ed624a8b41dc4aea723a8c8f38d726545a /src/libs/arduinoFFT-develop/changeLog.txt | |
| parent | 40f7e1c7be6882e01058b5ccf64d5005c6105346 (diff) | |
Refactored Ppg for frequency based algorithm. (#1486)
New implementation of the heart rate sensor data processing using a frequency based PPG algorithm.
The HRS3300 settings are fine-tuned for better signal to noise at 10Hz.
The measurement delay is now set to 100ms.
Enable and use the ambient light sensor.
FFT implementation based on ArduinoFFT (https://github.com/kosme/arduinoFFT, GPLv3.0).
Diffstat (limited to 'src/libs/arduinoFFT-develop/changeLog.txt')
| -rw-r--r-- | src/libs/arduinoFFT-develop/changeLog.txt | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/libs/arduinoFFT-develop/changeLog.txt b/src/libs/arduinoFFT-develop/changeLog.txt new file mode 100644 index 00000000..d49b8548 --- /dev/null +++ b/src/libs/arduinoFFT-develop/changeLog.txt @@ -0,0 +1,40 @@ +02/22/20 v1.9.2 +Fix compilation on AVR systems. + +02/22/20 v1.9.1 +Add setArrays() function because of issue #32. +Add API migration info to README and improve README. +Use better sqrtf() approximation. + +02/19/20 v1.9.0 +Remove deprecated API. Consistent renaming of functions to lowercase. +Make template to be able to use float or double type (float brings a ~70% speed increase on ESP32). +Add option to provide cache for window function weighing factors (~50% speed increase on ESP32). +Add some #defines to enable math approximisations to further speed up code (~40% speed increase on ESP32). + +01/27/20 v1.5.5 +Lookup table for constants c1 and c2 used during FFT comupting. This increases the FFT computing speed in around 5%. + +02/10/18 v1.4 +Transition version. Minor optimization to functions. New API. Deprecation of old functions. + +12/06/18 v1.3 +Add support for mbed development boards. + +09/04/17 v1.2.3 +Finally solves the issue of Arduino IDE not correctly detecting and highlighting the keywords. + +09/03/17 v1.2.2 +Solves a format issue in keywords.txt that prevented keywords from being detected. + +08/28/17 v1.2.1 +Fix to issues 6 and 7. Not cleaning the imaginary vector after each cycle leaded to erroneous calculations and could cause buffer overflows. + +08/04/17 v1.2 +Fix to bug preventing the number of samples to be greater than 128. New logical limit is 32768 samples but it is bound to the RAM on the chip. + +05/12/17 v1.1 +Fix issue that prevented installation through the Arduino Library Manager interface. + +05/11/17 v1.0 +Initial commit to Arduino Library Manager. |