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Pressure Sensor

This device utilizes an Arduino board to interface with a pressure sensor via an ADC pin and displays pressure and decay rate values on an LCD screen.

Components Used

  • ESP32
  • self built pressure sensor: Analog sensor providing voltage readings.
  • LCD Display

Functions

  • setup(): Initializes the LCD and serial communication for debugging.
  • loop(): Reads pressure values, calculates decay rates, and updates LCD display.
  • readPressure(): Reads ADC input, converts it to pressure values, and applies a moving average filter.
  • readTime(): Returns time since board power-up in seconds.
  • printData(): Prints pressure and decay rate values on the LCD or serial interface (for debugging).
  • addToMovAverage(), getAverage(): Functions to maintain and calculate moving average of pressure values.

Instructions

  1. Hardware Setup: Connect the pressure sensor to the designated ADC pin.
  2. I2C Connection: Wire the LCD using SDA and SCL pins for communication.
  3. Upload Script: Use Arduino IDE or PlatformIO to upload the script to the board.
  4. Observation: View pressure and decay rate values on the LCD screen.

Additional Notes

  • Adjust constants and configurations based on sensor specifications.
  • Enable/disable debugging serial prints by commenting/uncommenting lines.
  • Ensure proper power supply and sensor calibration for accurate readings.