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Old 01-09-2009, 02:53 PM
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Re: [IDEA] weight scale using pressure sensor on touchscreen

Quote:
Originally Posted by beefcakeb0 View Post
no luck bump
For this scale to be "accurate," you would have to be weighing things in the pounds, not ounces. It takes quite a bit of pressure to push the screen.

You would most likely need some sort of balancing setup, where you had a set weight on one side, and it had a peg of some kind that pushed on the screen. The more weight you put on the other side of the balancer, the less pressure the screen would see... This wouldn't work very well either, but just putting stuff directly on the screen would never work.

I did just think of another way to do it, while I was typing this.

The way a resistive touchscreen works, allows it to see how much surface area is making contact. So if you built some sort of tray, that was SLIGHTLY curved in the middle, so that when you pushed harder, it made more contact with the screen, with an outward motion, (think--soap dish, or boat bottom,) then theoretically, you'd have a way to see more pressure/weight.

Either way, it's totally impractical and a waste of anyone's time to make it, since if you have this tray device, you might as well just have a scale.

If you are looking for a better way to measure dope, while being under the radar, then it seems that your best bet would be to conceal a scale better... why not take a bigger phone like a 6600, or 6700, and rip out all the internals, and put a scale inside, and then make the screen the scale surface... no one would ever notice you had a scale. Plus, the recessed screen would allow for your stuff to not fall of as easily.

Or you could do it with a Touch. The scales I have seen are very small, and could easily be stuffed inside a Touch chassis. No one would ever pick up a Touch, and say, "Hey, I bet that's really a scale..."

other than doing something like this, you are out of practical/executable ideas...
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