Questions tagged [fsr]

Force-sensing resistors are devices whose resistance changes with pressure / stress.

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Calculation of an error of a non-linear FSR produced by the connection of the voltmeter

Background: I'm studying my master at Computer Science and took a course that requires some understanding in electrical engineering. Unfortunately I have a very basic understanding of electrical ...
• 101
131 views

How do I find the accuracy / uncertainty of my force sensor system?

I have built a force sensor using an arduino and a self built force sensitive resistor (FSR.) The sensor system consists of a simple voltage divider, where the voltage across the FSR is measured by an ...
1 vote
128 views

How to determine the value for the gate resistor (Rg) of a MOSFET in low side configuration?

Once the FSR is pressed the output of the comparator should go high. This, will drive the MOSFET ON which has a DC motor on its drain terminal. I was wondering how can I determine the value in ohms of ...
48 views

Should I include a pull-up resistor for this application? simple schematic

Once the FSR is pressed the output of the comparator should go high. Since there is not really any "delicate" logic behind this schematic I was wondering if a pull-up resistor is really necessary for ...
330 views

Using a force sensitive resistor (FSR) as a switch

I would like to use an FSR as an on/off switch. I want to implement it using an 8-bit 328p processor (either on an Arduino or an AtMega.) I'm using a voltage divider between the FSR and a 10K ohm ...
1 vote
158 views

Limit current through Force Sensing Resistor

I am using an ICL7660 chip to provide a negative reference supply to an inverting op-amp set up for a Force Sensing Resistor (FSR). The minimum resistance of the FSR is about 1kohm, this means that ...
1 vote
114 views

Is there a way to make a force sensitive resistor vary its resistance from 0 Ω to 5kΩ?

I want to replace a potentiometer with a force sensitive resistor (FSR.) I’ve bought one that varies from 1kg —0g. I don’t need the middle pin of the pot, I need it to work as a resistor. My circuit ...
• 381
77 views

What type of pin in this (see picture)? I see them in FSRs but they don't appear to be Dupont connectors

Here are the images of the pins: And here is the FSR that it came from:
270 views

Reading 13 FSR over a multiplexer

I've made a design for reading 13 FSR with only 1 channel ADC. I want to apply the DAC voltage to only one of the FSRs using MUX. But when I choose one, I see voltage in others. For example, when I ...
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