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At the risk (which I accept frequently ;o} ) of sounding picky:
1) “Force” and “pressure” are not the same thing, but the terms appear to be used interchangeably in the description. It would be helpful to know which this senses. If one exerts 10 newtons of force on a 1 cm X 1 cm area of this sensor, that’s four times the pressure of the same 10 newtons on a 2 cm X 2 cm area, but the same force. How, if at all, does the sensor respond differently to the two loads?
2) Speaking of “newtons”, a “newton” is a unit of force. Neither a “gram” nor a “kilogram” is; they are units of mass.
3) Lastly, unless plane geometry has been changed radically in the ~four decades since I studied it, there’s no such thing as a “square, 1.75x1.5” anything.
Eric

These work very well. I was able to hook them up to an Arduino with a simple voltage divider circuit (as suggested by the FSR integration guide), but I did not have to use an amplifier.
I wrote a simple script to send the pressure data via serial from the Arduino, and then used it in a Panda3D Python application.
They would probably not work for extremely accurate measurements, but I am able to control the pressure in the application with my fingertips quite well for my purposes.

Or try a piece of conductive foam between two pieces of copper clad pcboard stock.
But this is much cleaner.

Here is a video of how we used with an indian make of the arduino ! Also provided is the connection detail and the code.
http://tenettech.com/comet/?page_id=191

Would this sensor register light “hits” such as hand drumming? Is the sensor flexible? Are there smaller versions? Would you recommend a different sensor if the project requires the sensor to register light “hits” with the fingers? Even a “forceful touch” should register (and later produce a sound).
Thanks in advance for your help!

is this sensor flexible. Can it be bent?

All your pressure/force sensors seem to be not “incredibly accurate”.
I’m looking for a sensor that can register weights in the 50-300 grain range with an accuracy and repeatability of no less than 2 grains/10%.
That’s what I would call “moderately accurate”… but I don’t see any of those mentioned.
Did I just miss them? Or do you not stock them?

hi all, how do you cover / mount this in your project usually? i mean, is it possible to put a plastic film on top of it (or something similar) ?

How do you solder onto these things? Is there another way to make connection with them?

These sensors look like the ones that are used in the Native Instruments maschine. Their version of the pads have a square hole in the middle for the leds and are working slightly different i think. But maybe it is a good idea if sparkfun (if it is possible) add similar square pads with a hole for leds?

here is a link to the NI Maschine teardown.

Curious if once calibrated at zero, 1/3,2/3 and full scale, do these devices hold as far as remaining consistent?

With low linearity, what was the application these were designed for?

Cioara from Betclic