Thin-fllm Pressure Sensor

Introduction

The film pressure sensor is a flexible sensor based on resistive pressure-sensitive technology, capable of real-time monitoring of the pressure applied to the sensing area. As the pressure increases, the resistance value of the sensor gradually decreases, forming a variable resistance. For ease of teaching, we have designed it as an electronic module that can be easily connected to Arduino and micro:bit main controllers through sensor wires. It is suitable for learning the applications of pressure sensors in industrial automation, automotive electronics, medical equipment, aerospace, and other fields in educational settings.

Features

Easy to use：The module design is simple, the size is small, and the thickness of the sensing element is only 0.4mm. Peel off the protective film and stick it to the place where the pressure needs to be measured.

Strong compatibility：It can be easily used with a variety of main control boards, such as Arduino, Micro:bit, Row Empty Board, etc.

Quick response：With an activation time of less than 0.01 seconds, it is suitable for dynamic pressure sensing.

High sensitivity: Capable of detecting pressure ranging from 30g to 1.5kg, making it suitable for various application scenarios.

*Durability: *Able to withstand over 1 million pressure cycles, ensuring long-term stable use.

Typical applications

In-bed and out-of-bed monitoring

Sleep state monitoring

Smart switch: equipped with force recognition to prevent accidental operation.

Counter: records the number of pressure occurrences.

Detecting the degree of pressure on the human body in medical equipment.

Specifications

Operating voltage：3.3～5V

Lateral pressure range：30g~1.5kg

Output type：Analog signals

Interface type：PH2.0-3P

Size：55.5x22mm

*Weight: *2.9g (total weight including packaging and sensor wires is 14g)

Pin Description

Serial number Silk screen Description of the function
1 A Analog output
2 + Positive terminal of the power supply
3 - Negative terminal of the power supply

Delivery list

Gravity: Thin-fllm Pressure Sensor 1 pc

Gravity: Analog sensor cable (30cm) 1 pc

Micro:bit Tutorial

Requirements

Project Description-Mind+

Write a program using Mind (example code shown below), burn it to the Micro:bit, and observe the serial port output results.

Wiring diagram-Mind+

Connect the sensor to the P1 pin on the expansion board.

Example code-Mind+

Effect display-Mind+

When no pressure is detected
When pressure is detected

Note: The greater the force, the higher the detected value will be.

Makecode Tutorial

Write a program using Makecode (example code shown below), burn it to the Micro:bit, and observe the serial port output results.

Wiring diagram-Makecode

Connect the sensor to P1 pin of the expansion board.

Example code-Makecode

Effect display-Makecode

When no pressure is detected
When pressure is detected

Note: The greater the force, the higher the detected value will be.

Arduino Tutorial

Requirements

Project Description

Write an example program using Arduino IDE, burn it to the Arduino controller, and observe the serial port output results.

Wiring diagram

Connect the sensor to the A5 pin on the expansion board.

Example code-Arduino IED

void setup() {
Serial.begin(9600);
}
void loop(){
Serial.println(analogRead(A5));
delay(500);
}

Effect display

When no pressure is detected
When pressure is detected

Unihiker Tutorial

Requirements

Project Description-Graphical

Write a sample program, burn it to the unihiker controller, and observe the display results on the unihiker.

Wiring diagram-Graphical

Connect the sensor to the P22 pin of the unihiker.

Example code-Graphical

Effect display-Graphical

When pressure is detected When no pressure is detected

Project Description-Python code

Write a Python sample program, burn it to the unihiker controller, and observe the display results on the unihiker.

Wiring diagram-Python code

Connect the sensor to the P22 pin of the unihiker.

Example code-Python code

#  -*- coding: UTF-8 -*-
# MindPlus
# Python
import time
from unihiker import GUI
from pinpong.board import Board,Pin
from pinpong.extension.unihiker import *
u_gui=GUI()
Board().begin()
p_p22_analog=Pin(Pin.P22, Pin.ANALOG)
Analog values=u_gui.draw_text(text="",x=90,y=30,font_size=20, color="#0000FF")
while True:
Analog values.config(text=p_p22_analog.read_analog())
time.sleep(0.5)

Effect display-Python code

When pressure is detected When no pressure is detected

FAQ

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