I have been stuck for a long time on a piece of Arduino code that performs an FFT on a Photoplethysmogram signal and decides signal quality after that.
When I upload the code, Right after performing the FFT, the code does not display anything more, implying it ceases to execute and shows an error message -
Not enough memory; see http://www.arduino.cc/en/Guide/Troubleshooting#size for tips on reducing your footprint. data section exceeds available space in board
I cannot remove either section of the code, so what do I need to change with this?