Force Sensitive Resistor Small

The Force Sensitive Resistor (FSR), small size, is a thin sensor whose resistance drops as you press on its sensing area. With no pressure it reads a very high resistance, and the harder you press, the lower it goes. Wired in a simple voltage divider, it lets an Arduino or ESP32 detect a touch, a squeeze or roughly how hard something is being pressed.

Force Sensitive Resistor Specifications

• Sensor type: force sensing resistor (FSR), thin film
• Size: small sensing area
• Behaviour: resistance decreases as the applied force increases
• Unloaded resistance: very high, in the megohm range
• Terminals: 2 leads, no polarity
• Output: analog, read through a voltage divider
• Accuracy: suited to detecting touch and relative force, not precise weighing

Force Sensitive Resistor Applications

• Touch and pressure buttons
• Detecting whether an object or person is present on a seat, shelf or mat
• Grip sensing in robot hands and grippers
• Musical instruments and interactive art
• STEM and university sensor projects

What's in the Box

• 1 × small force sensitive resistor

Tip: Connect one lead to 5 V (or 3.3 V) and the other to an analog pin, then add a 10 kΩ resistor from that pin to GND. Avoid heating the leads for long with a soldering iron, as the plastic film is easily damaged; a female header or crimp connector is safer.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.