Design and Realization of an Arduino Extensometer

Make an extensometer using Arduino, HX711 and resistors. Wheatstone Bridge Strain Gauges.
Please Help.
I'm new to Arduino and need help

Hello
Take a search engine of your choice and ask the WWW for HX711 +arduino.

An excellent overview can be obtained from this article:

Arduino with Load Cell and HX711 Amplifier (Digital Scale) | Random Nerd Tutorials