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.