[Ladyada] has released this tutorial on using pressure sensors. They cover everything from the basics of their construction through how to connect and read data from them. The elegant sensor pictured above is available through the adafruit store, but you could always build your own.
[thanks pt]
must
make
synthesizer
nice writeup. try conductive foam sandwiched between two pieces of window screen, works great as a resistive pressure sensor.
this reminds me of the parts posts. what happened to those? *hint*hint*
красиво, сделал! Благодарю!!!
http://blog.makezine.com/archive/2009/05/gakken_synth_guitar_mod.html
pretty nice use of one of these i must say: converting your force into resonance, or “scumminess”
Another type of gauge that can be used in such an application is the simple foil strain gauge, which works on the same resistance principle, but instead is adhered directly to the surface of an object to measure the strain. The readings can be calibrated to known pressures or forces, effectively turning any elastic material into a “pressure sensor”.
@Mig
Where can I get that “ribbon controller”. What is the part number?
what about piezo crystals? wouldn’t that work well for pressure sensing?
I’m very interested in connecting an arduino to a strain gauge /load cell to take aweight reading directly into a PC rather than using an expensive digital terminal.
This is a force sensor and not a pressure sensor. They are two different things. The title is misleading.
i just drove a lm324N opamp from TI to behave as a pressure sensor. flex the chip a certain way and you;ve very accurate linear 0-5v 100-2kg scale :D yay for experimenting. also the chip was 17p
edit: i meant force sry
Hack a Day serves up fresh hacks each day, every day from around the web as well as hacking related news.
these will be awesome for circuit bending. thanks!