Instructables

DIY FSR sandwich

Picture of DIY FSR sandwich
How to build your own tasty force sensor sandwich in three easy steps. These 1"x1" FSRs are part of the bed_data project at ITP.

If your project needs to use many FSRs, making your own surely reduces the cost of your project.

What you'll need:

Materials
Copper PCB ($7ish from radioshack)
Conductive foam ($7+shipping from altex. $13 total)
Wires
Gaffers tape

Tools
Scissors/Shears/Wire cutters
Soldering kit



 
Remove these adsRemove these ads by Signing Up

Step 1: Cutting

Picture of Cutting
P1030226 (1).jpg
We made 1"x1" squares from the conductive foam and copper board.

A manual shear was used to cut the copper squares and regular pair of scissors for the foam.

Step 2: Soldering

Picture of Soldering
P1030213.jpg
P1030214 (1).jpg
When you are soldering the wire to the copper board make sure you have enough wire to cover at least half of the square. Make sure your wire is long enough.

You need to do this for each piece.
The copper PCB is perfect for an sturdy solder.



Step 3: Sandwich

Picture of Sandwich
P1030224.jpg
We used gaffers tape to secure the board and foam sandwich.

Cut a 2.5" strip and wrap it around, then cut any excess.

And you are done!



Step 4: Done

Picture of Done
Now you can make hundreds and you should be able to read analog sensor values with your favorite micro-controller.
hyunus3 years ago
uhm..,helo
there something i would to know,what kind of application can be apply for this DIY fsr,i hardly want to know please..
bungalobob3 years ago
Are you force-sensing a bed in this picture? Because I was thinking on useing these for the very same reason
zack2474 years ago
so, these are technically variable resistors based on pressure or something else?
jam BD4 years ago
useful =D
many on them
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!