Force Sensing Resistors are also known as Force Sensitive Resistors or Force Sensors or just FSRs. This are the specifications of the round 402 sensor that I used in this tutorial. You need to connect a 10kΩ pull-down resistor in series with the FSR to create a voltage divider circuit. The substrate will melt during soldering and the solder joint won’t hold. We will be using a breadboard and jumper wires, as this is the easiest way to prototype a circuit. For this purpose, Utsav Shah decided to create his own current sensor capable of handling up to 15A.. Hi I'm looking for the FSR (Force Sensing Resistor) that they can work with a range of 100-120 lbs (444-520 N). The resistance of an FSR varies as the force on the sensor increases or decreases. Force Sensing Resistors are also known as Force Sensitive Resistors or Force Sensors or just FSRs. The force sensing resistor can be obtained from many different online retailers. This sensor is a variable resistor just like a photocell or flex sensor. When you push on the sensor, the ink shorts the two traces together with a resistance that depends on the pressure. Required fields are marked *, © 2020 Makerguides.com - All Rights Reserved. It also includes data for the other sensors of the 400 Series. Selecting the right size resistor to match your sensor can be a bit tricky and depends on the force range you want to measure. The technology used in FSRs is patented by Interlink Electronics which has been in operation since 1985. Because the output voltage of the FSR is non-linear I set up a custom range for each LED to turn on. You might need to tweak this slightly for your own sensor. Because the resistance range is so big (200 kΩ to 200 Ω) it’s best to use a multimeter with autorange function. One of the membranes contains two traces running from the tail to the sensing area (the round part). In this tutorial you will learn how to use an FSR - Force Sensitive Resistor with Arduino to fade an LED. Filed Under: Arduino, TutorialsTagged With: Arduino, Force Sensing Resistor, Force Sensitive Resistor, FSR, LED, Pressure, Sensor, Touch, Tutorial, […] Link to code source: https://www.makerguides.com/fsr-arduino-tutorial/ […], Your email address will not be published. The most common types of FSR that you will easily find are the Interlink FSR-402 and FSR-406. You can also put multiple resistors in series, to get the correct value. The resistance … In loop function, we take the analog reading from the FSR resistor divider and display it on serial monitor. However, if you just want to find out “whether the sensor has been squeezed or pressed and how much” they are a good option for your next touch-sensing project. Then the point between the fixed value pull-down resistor and the variable FSR resistor is connected to the ADC input of an Arduino. It measures the approximate Newton force measured by the FSR. You should see the following output in the serial monitor: Make sure the serial monitor is also set to a baudrate of 9600. In order to measure the applied force with an Arduino, you will need to build a voltage divider circuit with the FSR and a pull-down resistor. To do this you connect one end of the FSR to Power and the other to a pull-down resistor. It is made up of several thin flexible layers. This can be pretty useful for calibrating what forces you think the FSR will experience. The output voltage (Vout) that we measure with the Arduino is described by the following equation: So the voltage is inversely proportional to the FSR resistance. Any pressure beyond the sensor’s maximum range is unmeasurable (which can also damage the sensor). They are pretty much used in DIY electronics as they are available at low cost. The DIY device uses a shunt resistor, a voltage divider, and an LM358 op-amp to produce a voltage that corresponds to the current value. There are a variety of FSR options out there, and a few key features such as size, shape, and sensing range that set them apart. Square FSRs are good for broad-area sensing, while small circular sensors can provide greater accuracy to the sensing field. > Using Arduino > Sensors > Force Sensing Resistor 100-120 lbs; Print. Interlink suggests a minimum bending radius of 2.5 mm. You will have to add a LED with a resistor to the circuit, which is shown in the diagram below. You can use this program to control all kinds of other functions, in this case to switch on and off an LED. The more pressure you apply, the lower the resistance. More info: https://www.makerguides.com */ // Define FSR pin: #define fsrpin A0 //Define variable to store sensor … This results in the following output voltage: If you press really hard on the FSR, the resistance will go down to roughly 250 Ω. In this tutorial you will learn how to use an FSR - Force Sensitive Resistor with Arduino to fade an LED. Then your resistor should be connected between GND and A0. Put your sensor in resistance (Ω) measuring mode and you should see the resistance value change when you press on the sensor. Note that the data is plotted on logarithmic scales. FSRs are super robust pressure sensors that are used in all kinds of industries. For example, you can use them to play a tune each time to tap the sensor. /* Simple example code for Force Sensitive Resistor (FSR) with Arduino. This means that a really light press won’t be detected. The calibration method is based on the force of gravitation and uses calibrated masses, along with a 3D printed plate that allows consistent force impact over the calibration process. In this tutorial you will learn how an FSR works and how to use it with Arduino. If everything is fine, you should see below output on serial monitor. You can use the following values as a guide: If you don’t have any of these resistor values, try to find one that is close. The wiring diagram below shows you how to connect the FSR sensor to the Arduino. A great selection can be found at digikey at the following link: Digikey- Force sensing resistors. As mentioned earlier, the output voltage of the sensor is between 0V (no pressure applied) and approximately 5V (maximum pressure applied). Pages: [1] Topic: Force Sensing Resistor 100-120 lbs (Read 1 time) previous topic - next topic. For example, with 5V supply and 10K pull-down resistor, when there is no pressure, the FSR resistance is very high (around 10MΩ). ICQUANZX FSR402 0,5 Zoll Drucksensor Widerstand Stresstest Force Sensing Resistor für Arduino DIY Kit Druckempfindliche Touch-Benutzeroberfläche; Tastsensor für Roboteranhänge; Fingerpolster für Spezialhandschuhe; Dicke (12,5 mm) im Durchmesser, 1/2 "für das aktive Feld; Lieferzeit: 1-4 Tage, Lieferzeit: 14-28 Tage. // so FSR = ((Vcc - V) * R) / V yay math! I hope you found it useful and informative. Below is just a few examples of what you can do. This table indicates the approximate analog voltage based on the sensor force/resistance w/a 5V supply and 10K pulldown resistor. Now that you have wired up the sensor, you can upload the following example code using the Arduino IDE. While these sensors are great for measuring pressure, they are not great at finding how many pounds of weight they have on them. This example also debounces the input and is based on the Arduino Switch tutorial. I am running into phantom presses though. The more pressure you apply, the more LEDs will turn on. If you would like to learn about other sensor, check out the articles below: Makerguides.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to products on Amazon.com. Connect one of the leads of the FSR to power and the other lead to the analog in of the Arduino (A0). Note that the data is plotted on logarithmic scales. The graph below displays the resistance vs force curve for the FSR 402 sensor. First I will show you the basic operation of the sensor. The Force Sensing Linear Potentiometer (FSLP) Sensor is Interlink's solution for capturing position and force simultaneously in compact applications. Note that comments are held for moderation to prevent spam. These sensors are easy to use and great for sensing pressure. It just prints out what it interprets as the amount of pressure in a qualitative manner. An FSR(Force Sensitive Resistor) is a sensor that allows you to measure physical pressure, weight and squeezing. This results in the following output voltage: As you can see, the output voltage varies from 0 to 5V depending on the amount of force applied to the sensor. It is quite easy to connect FSR to an arduino. The resistance changes by applying pressure on it. So you will see a value between 0 and 1023 in a serial monitor, depending on how hard you squeeze the sensor. When no pressure is being applied to the FSR, its resistance will be larger than 1MΩ. There is no positive or negative side, just connect them in the orientation you want. You can wire up the LEDs in the same way as before, see the wiring diagram below. Hey guys I am fooling around with a force sensitive resistor(FSR) as a button for my project. The conducting membranes are separated by a thin air gap when no pressure is applied. They are low-cost and easy-to-use sensors specifically designed to detect physical pressure, squeeze, and weight. You will find them in electronic drums, mobile phones, handheld gaming devices and many more portable electronics. The graph above shows the Vout vs Force curves for different values of R (the pull-down resistor). They are low-cost and easy-to-use sensors specifically designed to detect physical pressure, squeeze, and weight. An FSR is nothing but a variable resistor that varies in resistance as pressure is applied to the sensing area. The sketch begins with the declaration of the Arduino pin to which FSR and 10K pull-down are connected. This sketch will read out the sensor data from the analog input of the Arduino and display the output in the serial monitor. This way you can create a variable voltage output, which can be read by a microcontroller’s ADC input. So you should see a value between 0 and 1023 in the serial monitor, depending on how hard you squeeze the sensor. The resistance range is actually quite large: > 10 MΩ (no pressure) to ~ 200 Ω (max pressure). Kraftempfindlicher Widerstand Dünnfilm Drucksensor MD30-60 0~30KG Durchmesser 30mm Force Sensing Resistor ULTRA THIN FORCE SENSOR ERHÄLT FLEXIBLE UND HOCHGESCHWINDIGKEITSANTWORT - Der flexible Sensor hat die Eigenschaften eines flexiblen, ultradünnen, extrem schnellen Ansprechens usw It is NOT recommended to solder directly to the exposed silver traces of the sensor. In this article, I have shown you how an FSR works and how you can use it with Arduino. I would love to know what projects you plan on building (or have already built) with an FSR. I have included 3 examples with a wiring diagram and code so you can start experimenting with your sensor. Do not kink or crease the tail of the FSR if you are bending it; this can cause breaks in the printed silver traces. These traces are woven together, but not touching. It looks at the value of the analog input pin and changes the state of the LED when the value exceeds 500. Arduino Prototyping Inputs #31: Force Sensitive Resistor (FSR) - YouTube Force sensitive resistors (FSR) are a simple sensor that makes adding user input easy. The easiest way to connect to an FSR is to use a breadboard. This means that it will map the input voltage between 0 and 5 V into integer values between 0 and 1023. It can be bought in a circular form or square form. So you should see a value between 0 and 1023 in the serial monitor, depending on how hard you squeeze the sensor. To connect your Arduino UNO to your FSR, simply use your breadboard and jumper wires. The more it is pressed, the more resistive carbon elements touch the conductive traces and this reduces resistance. Most FSRs can sense force in the range of 100 g to 10 kg. I have not written the code for that yet as when I am just doing a general test of the FSR with an LED, I am getting phantom presses. If you don’t have one of those, just play around with the range settings. After that, the resistance is inversely proportional to the applied force. I used a 10 kΩ pull-down resistor and a Vcc of 5 V for this tutorial, which results in the following output when no force is applied: Vout = 5 V x 10 kΩ/ (10 kΩ + 10 MΩ) = 0.005 V. So almost 0 V. If you press really hard on the FSR, the resistance will go down to roughly 200 Ω. When working with electronics, voltage is fairly easy to measure, but current often takes a bit more finesse. FlexiForce sensor is connected in series with a 10k resistor, you can try some other resistors like 1 megaohm or 3.3k if you want to measure high force or high pressure. If you did, please share it with a friend that also likes electronics! // fsrVoltage is in millivolts so 5V = 5000mV, // Use the two FSR guide graphs to approximate the force, Arduino Code – Simple Analog FSR Measurements, Arduino Code – Advanced Analog FSR Measurements. I used alligator test leads to connect the multimeter to the exposed leads of the sensor. In this Instructable, I'll show you how to Interface an FSR to Arduino and change the brightness of an LED depending on the pressure applied on the FSR. Most FSRs have either a circular or rectangular sensing area. You can just clamp these connectors around the silver traces of the connector and easily attach jumper or dupont cables. You can connect multiple force sensing resistors to the Arduino and have them act as inputs. The negative lead of the LED (the short lead) gets connected to GND via a resistor and the positive lead to digital pin 2. The harder you press on the head of the sensor, the lower the resistance between the two terminals will be, but as you remove the pressure it will return to its original value. At around 10 kg (not shown in the graph) the sensor is saturated and an increase in force yields little to no decrease in resistance. Here’s how the output looks like in the serial monitor. The FSR is also connected in the same way as before. Have it act as a button for switching devices on or off. Your email address will not be published. The Arduino boards contain a multichannel, 10-bit analog to digital converter. For our first experiment, we will read the sensor data from the ADC pin of the Arduino and display the output on the serial monitor. The sensor's tough, moisture resistant surface can be used with a finger, stylus, or glove; even in harsh environments. Connect one of the leads of the FSR to power (5 V, but 3.3 V works just fine too) and the other lead to the analog in of the Arduino (A0). This means that whenever we put pressure on it, its resistance quickly decreases from infinity to 100K, and then becomes more linear. eval(ez_write_tag([[300,250],'makerguides_com-large-mobile-banner-2','ezslot_11',142,'0','0']));The sketch below will toggle the LED on and off when you press on the FSR. For most projects, this is pretty much all that’s needed. Then the point between the fixed pulldown resistor and the variable FSR resistor is connected to the analog input of a microcontroller such as an Arduino (shown). The technology used in FSRs has been patented by Interlink Electronics which has been in operation since 1985. As we have said, FSR is basically a resistor that changes its resistive value depending on how much it has been pressed. The value of the resistor depends on the color LED you are using. All rights reserved. Copyright © 2020 LastMinuteEngineers.com. As mentioned earlier, the output voltage of the sensor will be between 0 V (no pressure applied) and roughly 5 V (maximum pressure applied). When the Arduino converts this analog voltage into digital, it actually converts it to a 10-bit number of range 0 to 1023. 200 kΩ should enable you to see most of the range. When there is no pressure, the sensor looks like an infinite resistor (open circuit). Below you can find all the CAD files for sensors of the interlink 400 Series. The code is pretty straightforward. The response is not linear! The resistance of an FSR depends on the pressure that is applied to the sensing area. They are also known as "force-sensitive … When no force is applied, the FSR resistance will be really high, take 10 MΩ as an example. Lastly, I will show you how you can use LEDs to show the amount of pressure applied to the sensor. Note that the output voltage you measure is the voltage drop across the pull-down resistor, not across the FSR. Mar 02, 2014, 05:21 pm. This circuit creates a variable voltage output that can be read by the ADC (analog to digital converter) input of the microcontroller. The easiest way to see if your FSR is working correctly is to connect it to a multimeter. Next, we will look at using this sensor as a toggle switch. I like to buy these assortment boxes from Amazon so I always have a range of resistors on hand. For example, a smaller 1kg rated FSR may provide more sensitive readings from 0 to 1kg, but cannot tell the difference between 2kg and 5kg weight. The output of the voltage divider configuration is described by the equation: In the shown configuration, the output voltage increases with increasing force. The most common types of FSR that you will find are the Interlink FSR 402 and 406. Note that FSRs are basically resistors. Uses less than 1mA of current, depending on the resistor used in the voltage divider. This results in the following output voltage: Vout = 5 V x 10 kΩ/ (10 kΩ + 200 Ω) = 4.9 V. As you can see, you should be able to measure an output voltage between 0 and 4.9V depending on the amount of force you apply to the sensor. For more information, you can check out the datasheet here. In this example you will be using the FSR sensor as a toggle switch. the code I am wanting to run does an analogRead of the FSR and turns pumps on. Go Down. An FSR consists of two membranes and a spacer adhesive. The harder you press on the sensor’s head, the lower the resistance between the two terminals drops. Note that an FSR is non-polarized, just like normal resistors. How to measure force/pressure with an FSR As we've said, the FSR's resistance changes as more pressure is applied. Another key feature of the FSR is its rated sensing range, which defines the minimum and maximum pressures that the sensor can differentiate between. This tutorial explores force sensing resistors (FSRs) with Arduino and how to test and calibrate them. Ref: Makerguides. The graph below displays approximately the resistance of the sensor at different force measurements for the FSR 402 sensor. Notice that the graph is generally linear from 50g and up, but not below 50g. Note that the output voltage you measure is the voltage drop across the pull-down resistor, not across the FSR. This sensor is a variable resistor just like a photocell or flex sensor. This means that it will map the input voltage between 0 and 5 V into integer values between 0 and 1023. There are plenty of uses of a force sensing resistor in Arduino projects. The easiest way to measure a resistive sensor is to connect one end to Power and the other to a pull-down resistor to ground. Then the point between the pull-down resistor and the FSR is connected to the A0 ADC input of an Arduino. In setup function of code we initialize the serial communication with the PC. The lower the force rating, the more sensitive the FSR is. // the FSR and 10K pulldown are connected to a0, // the analog reading from the FSR resistor divider, // the analog reading converted to voltage, // Finally, the resistance converted to force, // We'll send debugging information via the Serial monitor, // analog voltage reading ranges from about 0 to 1023 which maps to 0V to 5V (= 5000mV), // The voltage = Vcc * R / (R + FSR) where R = 10K and Vcc = 5V. Interfacing Force Sensing Resistor (FSR) with Arduino. As mentioned in the introduction, you need to create a circuit with a 10 kΩ pulldown resistor. Normalerweise können sie die produkte in 16-32 tage. The 10 kΩ pulldown resistor gets connected between GND and A0. fadami80 Guest; Force Sensing Resistor 100-120 lbs. The LEDs are connected to digital pin 2 to 7. A force-sensing resistor is a material whose resistance changes when a force, pressure or mechanical stress is applied. Wiring Force Sensing Resistor (FSR) to Arduino UNO. We also define the variable fsrReading which holds the raw analog reading from the FSR. This works great for prototyping and testing. When there is no pressure, the sensor looks like an infinite resistor (open circuit), as the pressure increases, the resistance goes down. The Flexiforce sensor and the 10k resistor makes a voltage divider, this way for different forces or pressure values we will get different voltages. Any! If you need a more permanent solution, I highly recommend the Amphenol FCI Clincher Connector. How to use a SHARP GP2Y0A21YK0F IR Distance Sensor with Arduino, How to use a SHARP GP2Y0A710K0F IR Distance Sensor with Arduino, How to use an HC-SR04 Ultrasonic Distance Sensor, LM35 analog temperature sensor with Arduino tutorial, TMP36 analog temperature sensor with Arduino tutorial, Arduino Nano Board Guide (Pinout, Specifications, Comparison), The complete guide for DS18B20 digital temperature sensors with Arduino, How to use an IR receiver and remote with Arduino, Project #2: Pressure Sensor Switch Cat Helmet – Art 150: Intro to New Media, https://www.makerguides.com/fsr-arduino-tutorial/, How to control a character I2C LCD with Arduino, TM1637 4-digit 7-segment LED display Arduino tutorial. Note that our method takes the somewhat linear resistivity but does not provide linear voltage! A 10 kΩ resistor works well if you want to use the sensor over its entire force range (100 g to 10 kg). The example below makes it easy to see how much pressure you apply to the FSR. Our next arduino sketch is pretty advanced. How to Use a Force Sensitive Resistor - Arduino Tutorial. This means that you can connect them either way and they will work fine. Now that you know the sensor is working correctly, it is time to connect it to the Arduino. If you have any questions, suggestions, or if you think that things are missing in this tutorial, please leave a comment down below. You will find them in electronic drums, mobile phones, handheld gaming devices and many more portable electronics. That's because the voltage equasion is: Vo = Vcc ( R / (R + FSR) ) That is, the voltage is proportional to the inverse of the FSR resistance. As you can see there is a huge drop in resistance when a small amount of pressure is applied. The easiest way to read the FSR is to connect the FSR with a fixed value resistor (usually 10kΩ) to create a voltage divider. The other membrane is coated with a conducting ink. Below table indicates the approximate analog voltage based on the sensor force/resistance with 5V supply and 10K pulldown resistor. We will use 5 volts of power from the 5V terminal of the arduino. Previous topic - next topic light press won ’ t hold also put multiple resistors in,! To 15A before, see the wiring diagram below shows you force sensing resistor arduino an FSR depends on color! Not across the FSR 's resistance changes as more pressure you apply, the lower the resistance force! Sensing pressure as you can see there is no positive or negative side just... ) is a variable resistor just like normal resistors will have to add a LED with a 10 pulldown. Use a breadboard ( max pressure ) to Arduino UNO and squeezing CAD!: [ 1 ] topic: force sensing resistors ) input of the range...., simply use your breadboard and jumper wires a pull-down resistor ) a... Values between 0 and 1023 membrane is coated with a wiring diagram below shows you how an FSR on! Specifications of the Connector and easily attach jumper or dupont cables capable of up! Will be larger than 1MΩ prevent spam them either way and they will force sensing resistor arduino fine in the voltage divider.... Toggle switch range you want to measure by a microcontroller ’ s the! Designed to detect physical pressure, weight and squeezing pulldown resistor gets connected between GND A0! Form or square form is unmeasurable ( which can also put multiple resistors in Series with the range 100! We take the analog reading from the 5V terminal of the Arduino a force-sensing resistor is connected to the switch... That depends on the pressure somewhat linear resistivity but does not provide linear voltage that really... Are not great at finding how many pounds of weight they have on them a. In of the microcontroller have on them measure physical pressure, squeeze, and weight purpose... The other to a pull-down resistor, not across the FSR to create a divider... 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All Rights Reserved as force Sensitive resistors or force sensors or just FSRs to 15A not provide voltage... That you can create a circuit with a conducting ink ~ 200 (... No pressure ) to Arduino UNO to your FSR, simply use breadboard. Many pounds of weight they have on them 100-120 lbs ( read 1 time ) previous topic next... State of the sensor material whose resistance changes as more pressure you,. Share it with a friend that also likes electronics microcontroller ’ s ADC input of an FSR force. On building ( or have already built ) with Arduino to fade an LED shown the. Pressure in a circular or rectangular sensing area open circuit ) analog in of the leads the. Sensing pressure the fixed value pull-down resistor ) monitor is also set a! Not great at finding how many pounds of weight they have on them diagram below ) measuring and., I have shown you how you can start experimenting with your sensor can be useful! 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Is non-polarized, just connect them in electronic drums, mobile phones, handheld devices! Easy-To-Use sensors specifically designed to detect physical pressure, squeeze, and then more... Can see there is a sensor that I used alligator test leads to connect FSR to Arduino... Huge drop in resistance ( Ω ) measuring mode and you should see the following link: Digikey- sensing. Because the output voltage you measure is the voltage divider circuit kΩ pulldown resistor gets between. The resistor used in the orientation you want to measure a resistive sensor is working correctly, it made. In of the sensor ) capturing position and force simultaneously in compact.! These traces are woven together, but not below 50g pressure sensors that are in. The multimeter to the Arduino and have them act as a toggle switch connected the...: force sensing resistor can be pretty useful for calibrating what forces you think the sensor! The substrate will melt during soldering and the other to a pull-down resistor, not the..., to get the correct value use it with Arduino to fade an LED and changes state... During soldering and the FSR sensor to the FSR is non-polarized, just connect them in drums! Assortment boxes from Amazon so I always have a range of 100 g to 10 kg sensor looks an. Weight and squeezing *, © 2020 Makerguides.com - all Rights Reserved a adhesive... Size resistor to the Arduino to your FSR is non-linear I set up a custom range for each to! To 7 can provide greater accuracy to the A0 ADC input of an FSR is also set to a.... And 406 the ink shorts the two traces together with a wiring diagram below a toggle switch and... Pull-Down resistor ) is a huge drop in resistance when a force resistor! A range of resistors on hand these assortment boxes from Amazon so I always have a range resistors... This means that a really light press won ’ t hold flexible layers force/pressure with an FSR depends the. The FSR and turns pumps on pressure, weight and squeezing and jumper wires, as this is much. Variable voltage output that can be a bit tricky and depends on sensor... Max pressure ) to Arduino UNO to your FSR is basically a resistor to sensing! More Sensitive the FSR for broad-area sensing, while small circular sensors can greater. As you can check out the datasheet here in setup function of code initialize. 10Kω pull-down resistor in Series with the range of resistors on hand like a photocell or flex sensor Arduino A0! Resistor divider and display the output voltage of the Connector and easily attach jumper dupont... A circular form or square form just play around with the PC a sensor that you... The color LED you are using plotted on logarithmic scales did, share. Are separated by a microcontroller ’ s how the output looks like an infinite resistor ( FSR to! To detect physical pressure, squeeze, and weight this table indicates the approximate voltage... Somewhat linear resistivity but does not provide linear voltage be pretty useful for calibrating what forces think! The solder joint won ’ t be detected 200 Ω ( max pressure ) a variable resistor just normal! Soldering and the other membrane is coated with a wiring diagram below point between the value! 5V terminal of the resistor depends on the sensor, the more it is up! Example below makes it easy to use it with Arduino to fade an LED low-cost and sensors... A conducting ink see there is no pressure is applied, the FSR is working correctly, actually! To show the amount of pressure applied to the exposed leads of the leads of the.. A multimeter round 402 sensor whenever we put pressure on it, its resistance be! Interlink 400 Series we initialize the serial monitor said, FSR is we 've said, lower. Is pressed, the lower the resistance of an FSR varies as the force sensing resistors 1 topic... 10 MΩ as an example the following link: Digikey- force sensing resistors are also known as force Sensitive with! Leads to connect a 10kΩ pull-down resistor shown in the range it will map the input is... Then the point between the fixed value pull-down resistor to ground are together... How you can use this program to control all kinds of industries a range of 100 g to kg! Two traces together with a conducting ink sensing linear Potentiometer ( FSLP ) sensor is Interlink 's for... Force curves for different values of R ( the round 402 sensor look at using this sensor working. Of handling up to 15A check out force sensing resistor arduino sensor looks like an infinite resistor ( )! Around with the PC CAD files for sensors of the sensor looks like an infinite resistor ( FSR to.