I want to build an arduino that can calculate the current density altitude.
The minimum information that I need are:
Actual pressure (station pressure) in Hg
Temperature in Celsius
Would like to output it to a display.
I plan to use the Arduino uno kit but with so many sensors for temperature and barometric pressure I don’t know which one would be best for my first project.
I want to upgrade this project with altitude, angle compass and gps in the future.
help with sensor selection and screen is greatly appreciated at this point.
Did you make a sketch? I'm wanting to create a small device that can display OAT, Altitude, Field pressure setting inHg and Density Altitude. I know the formula on paper to calculate this but is there a way to make an Arduino do it using a BME280.
Density Altitude = pressure altitude in ft (120x(OAT-ISA temp)
Density Altitude is obtained by setting sea level reading of altimeter to 29.92
OAT is outside air Temp in degrees C
ISA is 15 degrees C plus 2 degrees per 1000 ft above sea level.
The BME 280 can obtain this data, I am just unsure on how to program the math.