ArduWiki: 새 문서: {{#seo:|title=Arduino Wiki: FSR-400 Pressure Sensor Guide|title_mode=append|keywords=Arduino, Information Science, Maker Learning, Performance Evaluation, FSR-400 Pressure Sensor, Arduino Projects, Capstone Projects, Arduino Example Code|description=This guide introduces how to control the FSR-400 pressure sensor with Arduino (basic information, circuit, example code). It is useful for information science and maker classes.}} class=coders100...

2025-03-27T12:38:28Z

새 문서: {{#seo:|title=Arduino Wiki: FSR-400 Pressure Sensor Guide|title_mode=append|keywords=Arduino, Information Science, Maker Learning, Performance Evaluation, FSR-400 Pressure Sensor, Arduino Projects, Capstone Projects, Arduino Example Code|description=This guide introduces how to control the FSR-400 pressure sensor with Arduino (basic information, circuit, example code). It is useful for information science and maker classes.}} center|class=coders100...

새 문서

{{#seo:|title=Arduino Wiki: FSR-400 Pressure Sensor Guide|title_mode=append|keywords=Arduino, Information Science, Maker Learning, Performance Evaluation, FSR-400 Pressure Sensor, Arduino Projects, Capstone Projects, Arduino Example Code|description=This guide introduces how to control the FSR-400 pressure sensor with Arduino (basic information, circuit, example code). It is useful for information science and maker classes.}}

[[파일:FSR400메인.jpg|center|class=coders100]]

== '''Overview''' ==
FSR (Force Sensing Resistor) is a sensor that detects pressure, and its resistance changes when force or pressure is applied.

This guide introduces a simple way to measure pressure using Arduino.

=== Working Principle ===
The sensor is made of multiple layers stacked together. When pressure is applied, the contact area between the layers increases, and the resistance decreases.

By connecting the FSR in series with a resistor, the change in resistance is measured through voltage division, and the pressure is read via an Arduino analog pin.

== '''Specifications''' ==
{| class="wikitable"
|'''Detection Range'''
|0.1 ~ 100N (may vary depending on the model)
|-
|'''Size'''
|7.6 x 38 mm
|-
|'''Diameter'''
|5.08 mm
|}

== '''Example Usage''' ==
This example demonstrates how to observe the change in voltage when the FSR-400 pressure sensor is pressed, using the serial monitor.

A pull-down resistor circuit is set up to prevent noise and for voltage division.

If the resistor value is too large, the sensitivity may decrease. If it's too small, the sensitivity becomes too high and can strain the circuit, so it's best to use the appropriate value. In this example, a 10kΩ resistor is used.

=== Circuit Configuration ===
The FSR-400 sensor has no polarity, so either pin can be used.

==== [[파일:FSR400회로1.jpg|center|class=coders100]] ====

=== Example Code ===
<syntaxhighlight lang="c++" line="1">
const int fsr = A0; // FSR sensor connected to analog pin

void setup() {
Serial.begin(9600); // Start serial communication
}

void loop() {
int val = analogRead(fsr); // Read analog value from FSR
Serial.print("FSR Reading: "); // Output message
Serial.println(val); // Print the value

delay(500); // Wait for 0.5 seconds
}
</syntaxhighlight>

==== Execution Result ====
When the sensor is not pressed, the value is 0, and as pressure is applied to the sensor, the voltage value increases.

[[파일:FSR400실행결과.png|class=coders70]]

FSR-400 Pressure Sensor EN - 편집 역사