Input Current Measurment

I need to measure the input current drawn by a dc motor that is connected to a L298N H-bridge, I have read that I am able to current sense using the same L298N from the link below:

http://www.dustynrobots.com/academia/research/digital-signal-processing-and-filtering-motor-current-sensing/

can i connect the motor directly to this or do i need some sort of resistor??

Also am I able to print the values of input current onto an LCD or serial monitor?

Are you using a motor shield, or is this a bare L298N chip?