Load cells, flex sensors and related force‑sensing elements turn mechanical pressure, bending or vibration into measurable electrical signals. Straight‑bar and disc‑type load cells provide high‑resolution resistance changes for weight‑tracking or structural‑monitoring tasks, while S‑type designs accommodate off‑centre loads. Thin piezoresistive pressure pads and flexible flex strips give a compact way to detect touch, grip or joint movement, with resistance rising as the element bends. Large‑area piezo films generate voltage spikes from vibration or shock, useful for impact detection. SoftPot membrane potentiometers offer a linear resistance gradient across a long, flat strip, enabling precise position sensing. Most of these devices output a raw resistance or voltage that can be conditioned with simple amplifiers or ADC interfaces, making them straightforward to integrate into microcontroller‑based robotics, automation and interactive projects.
Code: SKU-000236
This is a piezoresistive force sensor from Tekscan. The harder you press the lower the sensor's resistance. Pressing hard the resistance changes from infinite to ~300k. The sensor itself is thin and flexible but the resistance does not change while being flexed. More Details...
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Code: SKU-004851
This straight bar load cell (sometimes called a strain gauge) can translate up to 5kg of pressure (force) into an electrical signal. More Details...
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Code: SKU-000630
This load sensor sometimes called a strain gauge is the same one found in digital bathroom scales (you know the ones you use in January for your New Year's resolutions and then forget about a month later). This sensor can measure up to about 110 pounds. More Details...
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Code: SKU-000641
Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output. They can also be used for a very small audio transducer such as a buzzer. More Details...
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Code: SEN-10084
This basic piezo sensor from Measurement Specialties is often used for flex touch vibration and shock measurements. A small AC and large voltage (up to +/-90V) is created when the film moves back and forth. A simple resistor should get the voltage down to ADC levels. More Details...
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Code: SKU-000350
This basic piezo sensor from Measurement Specialties is often used for flex touch vibration and shock measurements. A small AC and large voltage (up to +/-90V) is created when the film moves back and forth. A simple resistor should get the voltage down to ADC levels. More Details...
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Code: SKU-000352
The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and 'tap' inputs from a user. More Details...
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Code: SKU-003711
The SparkFun Load Cell Amplifier provides an easy way to interface with load cells and add precise weight measurement to your microcontroller projects. More Details...
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Code: SKU-003710
The SparkFun Load Sensor Combinator is a bare PCB that combines four load sensors into a standard four-wire Wheatstone bridge configuration. If you open up an electronic bathroom scale you’ll find a large rat's nest of wires. More Details...
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Code: SKU-003709
The SparkFun OpenScale is a simple-to-use open source solution for measuring weight and temperature. More Details...
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