The Square Force Pressure Sensor Module detects how hard something is pressing on it using an FSR (Force Sensitive Resistor — a component whose resistance drops as pressure increases). The force sensitive resistor changes resistance from very high when untouched to very low under firm pressure. You read that resistance change through a voltage divider (a two-resistor circuit that converts resistance into a readable voltage) connected to an ADC (Analog to Digital Converter) pin. The sensing area is 1.75 x 1.5 inches, which covers a broader surface than round FSR variants.
The square force sensor shape makes it a practical fit for applications where a round sensor would leave uncovered corners — flat buttons, load distribution pads, and grip detection surfaces all benefit from the square footprint. Operating voltage runs from 3.3V to 5V DC, so the force pressure sensor connects directly to Arduino analog inputs, ESP32 ADC pins, and Raspberry Pi ADC modules without a level shifter. The 91 mm total length includes a flexible connector tail that runs from the sensing area to a two-pin termination — long enough to route away from the surface being measured without adding extension cables.
The pressure sensor arduino pairing works through a voltage divider resistor and the analog Read function. Detecting button presses without mechanical switches, hobbyists building smart seating mats, and creating pressure-activated triggers with sensor. Connect the FSR in a voltage divider with a 10kΩ resistor, read the ADC, and map the value to pressure levels in sketch. Available from StemVolt, this square force pressure sensor module is ideal for engineers and makers developing pressure sensing, touch-responsive, and force measurement projects with reliable input detection for embedded applications.
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Features:
- FSR force sensitive resistor film drops from megaohms to hundreds of ohms under pressure
- 45 mm square sensing area detects edge and centre force without measurement dead zones
- 3.3V to 5V DC operation works directly with Arduino, ESP32, and STM32 ADC pins
- 91 mm flexible tail routes sensor connection away from measurement surface cleanly
- Lightweight flat profile embeds under surfaces, keypads, and enclosure panels without bulk
Dinesh Nagar –
Received this force pressure sensor in perfect condition with tracked delivery, sensitivity was excellent and it worked reliably throughout my STEM project testing.
Ravi Chaturvedi –
Perfect condition received
Nikita Porwal –
This sensor module provides reliable force and pressure detection, making it suitable for ATL lab projects, touch-sensitive systems, robotics, and Arduino-based applications.
Anaya Soni –
Fully satisfied purchase
Vaibhav Mittal –
Delivery tracked properly
Navin Chhajed –
First order satisfied