Pressure Barometric Water Level Sensor Module 0-40KPa MPS20N0040D

Features

• High precision AD sampling chip for accurate pressure measurement
• 0-40KPa air pressure sensor for a wide pressure measurement range
• Compatible with 2.5mm soft tube for water level and air pressure detection
• Suitable for industrial automation, environmental monitoring, and water level measurement in tanks and reservoirs
• Compact size and easy installation
• Uses a 5K ohm resistor bridge sensor for pressure measurement
• Specific pressure values can be calculated from measured resistance values
• Precise pressure measurement capability for various applications

Specifications

• Voltage: 3.3 - 5V
• Pressure Range: 0 - 40KPa
• Dimensions: 18 x 13 mm
• Fixing Hole Diameter: 2 mm
• Color: Red

Applications

• Water level monitoring: Measures air pressure at the water surface via a 2.5mm soft tube to calculate water levels in tanks and reservoirs.
• Environmental monitoring: Measures air pressure in environments such as greenhouses to monitor plant growth conditions.
• Industrial automation: Used for pressure measurement in pneumatic, hydraulic, and other manufacturing processes.
• Weather monitoring: Measures barometric pressure for weather prediction.
• Robotics: Enables precise pressure measurement in applications like robotic grippers.

Pin Connections

Sample Project

Circuit

Library

No external library is required for this module to work.

Code

#include "SPI.h"

const int sckPin = 3; // SCK pin connected to Arduino pin 3
const int outPin = 2; // OUT pin connected to Arduino pin 2

void setup() {
  Serial.begin(9600);
  SPI.begin();
}

void loop() {
  // Start the SPI communication
  SPI.beginTransaction(SPISettings(1000000, MSBFIRST, SPI_MODE0));

  // Read pressure value
  int pressureValue = readPressure();

  // End the SPI communication
  SPI.endTransaction();

  // Print the pressure value to the serial monitor
  Serial.print("Pressure: ");
  Serial.println(pressureValue);

  // Wait for a moment before reading again
  delay(1000);
}

int readPressure() {
  // Send a dummy byte to trigger the sensor to send data
  SPI.transfer(0x00);

  // Read the pressure value (12-bit resolution)
  int pressureValue = 0;
  pressureValue |= SPI.transfer(0x00) << 8;
  pressureValue |= SPI.transfer(0x00);

  // Mask the unnecessary bits (only the lower 12 bits are valid)
  pressureValue &= 0x0FFF;

  return pressureValue;
}

References

• Product Page