

Force-Sensing Resistor - 0.5" Circle
This force-sensing resistor (FSR) from Interlink Electronics is a passive component that exhibits a decrease in resistance when there is an increase in the force applied to the circular active area (0.5"/12.7mm diameter), allowing you to create a sensor that is able to detect force or pressure. The polymer thick film (PFT) device is optimized for use in human touch control of electronic devices and can sense an applied force ranging from a few dozen grams to over 2 kg.
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This force-sensing resistor (FSR) from Interlink Electronics is a passive component that acts as a variable resistor, with resistance decreasing in response to increasing applied force, which makes it easy to add a touch interface to your project or create a robot with much more sophisticated tactile senses than are possible with simple lever switches. The polymer thick film (PFT) device is optimized for use in human touch control of electronic devices and can sense an applied force anywhere in the active area ranging from a few dozen grams to over 2kg.
In our tests, the resistance exceeded 1 MΩ with no applied pressure and ranged from around 100 kΩ to a few hundred Ohms as finger pressure varied from light (a few dozen grams) to heavy (pressing as hard as possible). The resistance is very stable when the pressure is fixed, and the readings are very repeatable (there are no problems with hysteresis). This resistance range is well suited to work directly with the internal pull-ups of many microcontrollers such as AVRs and PICs. The FSR was responsive enough and sensitive enough to distinctly pick up light, rapid finger tap, and it was even able to pick up the vibrations of a small vibration motor placed on it on the motor’s side.
The 0.72"-diameter circular pad is flexible, light (0.25 g), and extremely thin (0.02"), and it has a circular active sensing area with a diameter of 0.5". It does not appreciably compress when pressure is applied. The FSR has a masked adhesive backing for easy mounting, and the 1.2" flexible male leads give you a convenient way to integrate the part into your project. The two leads have a 0.1" spacing, which means they are compatible with most solderless breadboards and perfboards, though the solder tabs are too short to work well with many 0.1" connectors.
Note that this FSR is not a load cell or strain gauge, and it is not suitable for precision measurements. While it can be used for dynamic measurement, only qualitative results are generally attainable. Force accuracy ranges from 5% to 25% depending on a number of factors, and the resolution is better than 0.5% of the full range. Please see the datasheet (1MB pdf) for more information, including force-vs-resistance curves, integration notes, usage tips, and suggested electrical circuits.
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A variety of force-sensing resistors (FSR). |
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We have four versions of force-sensing resistors available, which lets you choose the one with the dimensions that best suit your application:
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Force-Sensing Resistor - 1.5" Square |
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Force-Sensing Resistor - 0.2" Circle |
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MinIMU-9 Gyro, Accelerometer, and Compass (L3G4200D and LSM303DLM Carrier) |
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Force-Sensing Resistor - 0.2" Circle
Deflection sensor 114 mm long. The sensor resistance changes with the bend angle. At the end, the sensor has a 2-pin connector with a pitch of 2.54 mm. SparkFun SEN-08606
SEN-11207 - Flexiforce Pressure Sensor - 25lbs (1" area)
This sensor (RFS) uses a unique combination of infrared distance sensing, optical encapsulant and data filtering to detect extremely light touches. Tthe silicon covering is squishy, giving the sensor increased grip (friction) and a qualitative sense of force. SPX-14200
No product available!
Educational module for measuring force in the range from 30 g to 1.5 kg, based on a flexible material that responds with a change in the analog signal. Thanks to its small thickness (0.4 mm), fast response and compatibility with Arduino, micro:bit and Unihiker, it is ideal for teaching physics, engineering and DIY projects. DFRobot SEN0616
A round, flexible, pressure sensor that can be used to realize very sensitive force detection. The sensor is durable and designed to detect static and dynamic pressure at high reaction speed. DFRobot SEN0298
Flexible pressure sensor with dimensions of 40 x 40 mm. Designed to detect static and dynamic pressure at high reaction speed. DFRobot SEN0296
SEN-11207 - Flexiforce Pressure Sensor - 25lbs (1" area)
The SparkFun Load Sensor Combinator is a bare PCB that combines four load sensors into a standard four-wire Wheatstone bridge configuration. BOB-13878
Simple-to-use, open source solution for measuring weight and temperature with the ability to read multiple types of load cells and offers a simple-to-use serial menu to configure calibration value, sample rate, time stamp and units of precision. SEN-13261
Deflection sensor 114 mm long. The sensor resistance changes with the bend angle. At the end, the sensor has a 2-pin connector with a pitch of 2.54 mm. SparkFun SEN-08606
Force-Sensing Resistor - 1.5" Square
The module allows you to attach a strain gauge (working in the Wheatstone bridge circuit) and convert the analog signal into its digital representation, available on the module output lines. The system processes the signal with a 24-bit resolution and can be powered by 2.7V - 5.5V. The module is especially recommended for constructing digital scales in combination with Arduino
Force-Sensing Resistor - 0.2" Circle
Set with the ADC HX711 transducer module and a pressure sensor in the form of a tensometric beam. It communicates via the UART interface. It allows you to build a simple home scale. DFRobot SEN0160
Flexible pressure sensor with dimensions of 400x15 mm. Designed to detect static and dynamic pressure at high reaction speed. DFRobot SEN0299
Grove module with FSR402 pressure sensor. The board is equipped with a Grove connector with an analog output. Seeed Studio 101020553
No product available!
Force-Sensing Resistor - 0.5" Circle