Project_10686_Code

#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
#include <SoftwareSerial.h>

SoftwareSerial softSerial(2, 3); //TX_BT --> D2 / RX_BT --> D3


#define OLED_WIDTH 128
#define OLED_HEIGHT 64

#define OLED_ADDR   0x3C

Adafruit_SSD1306 display(OLED_WIDTH, OLED_HEIGHT);

void setup() {
  Serial.begin(9600);
  softSerial.begin(9600);
  display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR);

}

void loop() {
  float sensorValue = analogRead(A0);
  Serial.print("Analog Value =");
  Serial.println(sensorValue);
  float voltage = (sensorValue / 1023) * 5;
  Serial.print("Voltage =");
  Serial.print(voltage);
  Serial.println(" V");
  float wind_speed = mapfloat(voltage, 0, 5, 0, 32.4);
  Serial.print("Wind Speed =");
  Serial.print(wind_speed);
  Serial.println("m/s");
  softSerial.println(wind_speed);
  display.clearDisplay();

  display.setTextSize(4);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.println(wind_speed);

  display.display();
  delay(1000);
}

float mapfloat(float x, float in_min, float in_max, float out_min, float out_max)
{
  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}