I tried a project that i seen on arduino project hub it is arduino based electronics components tester it consists of arduino uno, 16x2 lcd display, and some resistors. I replica this project and my display show some random things why?can anyone pls help me
Original project link:- https://create.arduino.cc/projecthub/plouc68000/ardutester-v1-13-the-arduino-uno-transistor-tester-dbafb4
Based on the information You give, no. No help.
What have YOU done? The source of inspiration does not tell anything.
Hello
I would have thought that by your 10th post you'd know what information is needed to stand any chance of getting a helpful reply. No matter...
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I don't understand. 
Why did you not just buy it in a working state? 
Much cheaper, and ready to use. 
Most of us here have one. 
Hi,
Can you post some pictures of your project so we ca see your component layout?
Thanks... Tom.... 
Yep , I have one of those cheap testers :NPN,PNP,FET’s ( with leg identity) diodes, resistors , capacitors - very clever !!