Pressure Gauge Digital Range 1450 PSIG

/*

// definisi variabel

float bacapressure;

float pressure;

float rumus; 

float konstan = 0.13158; 

float maxi = 935;

float zero = 175; //(kalo kekecilan hasil psi-nya, ini naikkan) paling 168

float range = 100;

rumus = ((bacapressure-zero)*(range/(maxi-zero)));

*/

//-----------------------------------------------------------

/*

//14 Mei 2023

Code by: Gede A Setiawan

gedeasetiawan@yahoo.com

KETERANGAN

LCD:

SCL: D1

SDA: D2

VCC: 5V (kalo 3v gak bisa hidup lcd nya)

GND: GND

PRESSURE SENSOR:

Red: 5v --> output byte 175 (ubah 175 di konstanta zero)

Red: 3v --> output byte 120 (ubah 120 di konstanta zero)

Black: Gnd: Ground

Yellow: data --> A0

offset: 9.48 - 11.37 = 1.89 atau setara 0.13%

*/

//-----------------------------------------------------------

float inputpressure = A0;

//lcd

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

// defenisi variabel

float bacapressure;

float rumus; 

float konstan = 0.13158; //??

float maxi = 935; //output byte saat dikasi pressure pada range maximal 

float zero = 176; //(kalo kekecilan hasil psi-nya, ini naikkan) paling 168

float range = 1450; //range maximal sensor 

void setup() {

  lcd.begin(); //lcd inisiasi

  pinMode(inputpressure, INPUT);

  Serial.begin(9600);

  delay(10);

}

void loop() {

bacapressure = analogRead(inputpressure);

//rumus = (bacapressure*5/1024); 

//rumus = (((bacapressure)*5/1024)-4.23); 

//rumus = ((((bacapressure)/1024*5))-4.7)*1450; 

rumus = ((bacapressure-zero)*(range/(maxi-zero)));

if (rumus < 0) rumus = 0;

Serial.print("Data asli: ");

Serial.print(bacapressure);

Serial.print(" Pressure: ");

Serial.println(rumus);

Serial.println("-------------");

delay(200);

  lcd.setCursor(0,0);

  lcd.print("Pressure Gauge");

  lcd.setCursor(0,1);

  lcd.print(rumus);

  lcd.print(" psig ");

  delay(200);

}