This is a force sensitive resistor with a square, 1.75x1.5", sensing area. This FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR its resistance will be larger than 1MΩ. This FSR can sense applied force anywhere in the range of 100g-10kg.
Two pins extend from the bottom of the sensor with 0.1" pitch making it bread board friendly. There is a peel-and-stick rubber backing on the other side of the sensing area to mount the FSR.
These sensors are simple to set up and great for sensing pressure, but they aren't incredibly accurate. Use them to sense if it's being squeezed, but you may not want to use it as a scale.
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
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Based on 9 ratings:
It's been pretty easy to set up this sensor and it works perfectly. You can play a little bit around with resistors in order to set the sensitivity and works like a charm.
While we see force sensitive on this product, this sensor proportionally responds to forced size.
Did basic testing by placing small weight (placing AAA battery -ve side down) at different location on the sensor pad and observed that the sensor reports different force (resistance) depending on location of the weight.
Good sensor. It looks very nice and good that it's flexible. Works perfect
Small, sensitive, works great for my needs. The example code and circuit work flawlessly.
These sensors absolutely suck. They are super fragile. The leads that connect to the sensor (at the end of the green strip) come off very easily (meaning once they are off, the sensors aren't useable anymore) and my team and I have had zero success with trying to re-attach them. We bought around 6 sensors and tested them with the same weight on each sensor and each output different measured values.
These sensors are simple to set up and great for sensing pressure, but they aren’t incredibly accurate. Use them to sense if it’s being squeezed, but you may not want to use it as a scale.
I changed my design plan so it won't work with my current project but I will definitely have a use for it in the future.
I have used these FSR's for over a decade. They are so responsive and sensitive. I use them in musical instruments. The only bad thing I can say about these is that you can't get any fluid near them or they will be destroyed. If I try and clean my instrument or wipe it down, I can't get near these FSRs. But these are awesome.