Weight Sensor

I have been slowly learning how arduinos work but I am looking to create a quick prototype of a weight sensor that would be able to send push notifications through an application based on certain weights.
I haven't been able to find any similar tutorials yet and was hoping to tap into the wealth of knowledge here for some direction.

Thanks for any help in advance!
Madeline

do you have a sensor in mind ?

weights you expect ? ounces, tons?

dave-in-nj:
do you have a sensor in mind ?

weights you expect ? ounces, tons?

Dave - I am not sure about which sensor I am going to be using but I am looking to measure how much sand is in a bucket at any given time. So pounds, but nothing more than 5.