I need some help in stabilizing the BMP sensor altitude numbers and recording the highest apogee found; is there any thing i can fix or improve?
#include <Wire.h>
#include <Adafruit_BMP280.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
///////// fonts:freeMono,FreeSans, FreeSerif; italiucs version is for all - FreeSerifItalic; 9pt7b, 12pts7b, 18pt7b, 24pt7b,Adafruit5x7(default) & TomThumb;
//#include <Fonts/TomThumb.h>
#define screen_width 128
#define screen_height 32
#define reset_OLED -1
Adafruit_SSD1306 display( screen_width, screen_height, &Wire, reset_OLED);
Adafruit_BMP280 bmp;
float alt;
float seaPressure;// 1023.37;
float apogee;
int dy = 500;
float averagePressure()
{
float N = 100;
float sum = 0;
for (int i = 0; i < N; i++)
{
sum += bmp.readPressure()/100.;
delay(100);
}
return sum / N;
}
void setup()
{
Serial.begin(9600);
Wire.begin();
display.begin(SSD1306_SWITCHCAPVCC, 0x3c);
if( !bmp.begin(0x76) )
{
display.setCursor(32,16);
display.println( "BMP ERROR" );
display.display();
while(1);
delay(dy);
}
seaPressure = averagePressure();
alt = bmp.readAltitude(seaPressure);
/////////////////// These can be setup once here forever///////////////////
display.setFont();
display.setTextSize(1);
display.setTextColor(SSD1306_WHITE);
}
void loop() {
alt = bmp.readAltitude(seaPressure);
Serial.println( alt );
Serial.print(" ");
Serial.println( seaPressure);
display.clearDisplay();
display.setCursor(5,10);
display.println("Alt (m):");
display.setCursor(60,10);
display.println( alt,2 );
display.display();
delay(dy);
}
