Datalogger that can receive PWM input and store in microSD card

Hi there! I am looking for a datalogging device that is small (Arduino Uno/ Nano size), automotive grade, and can store PWM input into a microSD card. 


I am trying to read and store PWM data from a fuel level sensor. 


Does anyone have any ideas? Any help would be greatly appreciated! 

[original story: Circuit Digest]

Circuit Digest 05 Oct 10:32