Digital weighing machine with 4x4 keypad

[UKHeliBob]

What exactly do you need help with ?

If it is in using the keypad to input a number then this might help

Keypad data entry. A beginners guide

A common problem raised in the forum is how to use a keypad to enter a number to be used in a sketch. The examples with the Keypad library show the principles but there is little or no explanation of how they work or how they can be changed The aim of this thread is to explain the principles of keypad entry, explain how and why some things work or don't work and to provide a way forward for more complicated use of the Keypad library Let's start with "How do I enter a number using the keypad ?" …