Description
What it is
The 170 mm pressure sensor FSR is a pressure-sensitive device that can detect forces ranging from 20g to 10kg. This sensor is ideal for projects requiring pressure and movement detection, such as motion alarms, smart cushions, and sofa footrests.
Features
- Dimensions: 170 mm
- Detection range: 20g – 10kg
- Sensitive to pressure and flexible force
What it is for
This sensor can be used to create interactive projects such as motion alarms that activate when someone gets out of bed. It is compatible with Arduino and can be integrated into projects requiring pressure and movement detection. Check the datasheet for further connection and compatibility details.
Tutorial: How to use the 170mm Pressure Sensor FSR
The FSR 170mm pressure sensor is ideal for projects requiring force and pressure detection, such as motion alarms, smart cushions, and sofa mats. This sensor is perfect for beginners and makers who want to create interactive projects.
What you need
- Arduino Uno
- USB cable
- 3D Printing (by chance)
- Connectors
Steps
- Connect the FSR sensor to the Arduino Uno’s analog pin A0.
- Install the Adafruit_FSR library on the Arduino board.
- Write a sketch that reads values from the sensor and prints them in serial.
- Configure an alarm based on the values detected by the sensor.
- 3D print a support for the sensor (optional).
- Test the sensor with objects of different pressure.
- Calibrate the sensor to obtain the most accurate values.
- Implement an alarm system when the pressure exceeds a certain threshold.
Example code
void setup() {
Serial.begin(9600);
}
void loop() {
int val = analogRead(A0);
Serial.println(val);
}
Mini project
Create a motion alarm that activates when someone gets out of bed. Connect the FSR sensor to an Arduino and 3D print a support to place it under the mattress.
Common mistakes
- Do not connect the sensor correctly.
- Do not calibrate the sensor.
- Use an inappropriate electrical voltage.
- Do not update the Adafruit_FSR library.
Recommended accessories
- Arduino Uno
- Adafruit_FSR library
- 3D printing
- 3D support for sensor
Frequently asked questions
How do I calibrate the sensor?
Read the sensor values without pressure and store them as minimum value. Read the values with maximum pressure and store them as maximum value.
Can I use this sensor for other types of projects?
Yes, you can use it to detect pressure on floor mats, cushions, and other physical interaction projects.






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