In my small business I needed to weigh medium to large items and boxes on a floor scale for shipping. Rather than pay way too much for an industrial model, I used a digital bathroom scale. I found it to be close enough for the rough accuracy I required when over 15lbs (7kg), as well it measures up to 330lbs (150kg). Way more than I can lift.
I was frustrated because the display was always hidden under the item I weighed. Sure the result locked in but only if you got lucky, blindly timing it right and quickly moving the box after.
I can also see a potential of this for persons with some physical challenges. Think about the hard of seeing reading at their feet, bad backs or spines making it difficult to bend to read the display, pregnant women who can no longer see the floor beneath them (Quit laughing before some big mama come slap you!), etc. I am just saying it could be medically difficult for some to see well to the floor level. It would be much easier for them to have the display at about face high?
So I wondered about why the display has to be stuck inside the bathroom scale and thus on the floor or under the item being weighed? I then realized that it does not when you see the inner workings of my electronic bathroom scale.
Step 1: Tools and Stuff You Will Need
I started with a very basic digital bathroom scale that I bought from my favorite Thrift Shop cheap. (I did not want to risk my own on my first convert.)
The scale I chose to do just happens to be made by EKS, it has a Silver color ABS platform over black metal base, LCD display, Capacity max 150kg (330lbs) and d = 0.1kg (0.2lbs), Auto shut off, Tap start, 9vdc battery.
Solder, Iron etc
Drill with small bit (3/32 inch)
Piece of 4-wire cable (telephone wire is perfect, look any Junk Store for <$1.)
and of course duct tape, naturally! (What is a project without it?) In this project we do not use it but it is so handy you will want some anyway.