600mm Resistive Film Pressure Sensor – Bed Exit Alarm Detection Smart Cushion Flexible Sofa Mat Force Sensing FSR 20g-10kg

Description

What it is

The 600 mm force-sensitive resistive film sensor is an electronic component that measures the force applied to it. Using FSR (Force-Sensitive Resistor) technology, the sensor changes its electrical resistance based on the applied pressure.

Features

• Dimensions: 600 mm
• Measurement Range: 20g – 10kg
• Type: Resistive Film

What it is for

This sensor is ideal for projects requiring force or pressure detection, such as bed-exit alarms or presence sensors on sofas. It can also be used to create smart cushions or flexible sofa runners. Its compatibility with Arduino and ESP makes it suitable for electronic prototyping projects.

Tutorial: How to use the FSR 20g-10kg Pressure Sensor

This force-sensitive resistor (FSR) pressure sensor is ideal for projects that require force or pressure detection, such as bed-exit alarms or presence sensors on sofas. It is suitable for beginner and intermediate makers.

What you need

• Arduino Uno
• Jumper wire
• FSR connector
• Breadboard
• LED
• 220Ω resistor

Steps

1. Connect the FSR sensor to the breadboard.
2. Connect a 220Ω resistor in series with an LED to limit the current.
3. Connect the LED and resistor to an Arduino output pin.
4. Connect the two terminals of the FSR sensor to Arduino input pins.
5. Download and install the Adafruit_FSR library.
6. Write an Arduino sketch that reads the sensor values and displays them.
7. Test the sensor by applying different pressures.
8. Adjust the code to activate an alarm when the pressure exceeds a certain value.

Example code

void setup() {
  Serial.begin(9600);
}

void loop() {
  int val = analogRead(A0);
  Serial.println(val);
}

Mini project

Create an alarm system that activates when someone gets out of bed. Connect the FSR sensor under the mattress and activate an LED or sound when the pressure decreases.

Common mistakes

• Connect the sensor to the wrong Arduino pin.
• Do not limit the current for the LED.
• Do not set the activation value for the alarm.
• Do not install the necessary library for the FSR sensor.

Recommended accessories

• Arduino Uno
• Breadboard
• LED
• 220Ω resistor

Frequently asked questions

What is the difference between this FSR sensor and other types of pressure sensors?
The FSR sensor is a resistor that changes resistance based on the applied pressure, while other sensors may measure pressure in specific units such as Pascal or PSI.

How can I increase the sensitivity of the FSR sensor?
Check the datasheet to find the optimal sensitivity value and adjust the sensor reading code accordingly.

Can I connect multiple FSR sensors together?
Yes, you can connect multiple FSR sensors together using a multiplexer or reading each one on a separate pin of the Arduino.