Back home after his trip, he built this simple Temperature, Altitude and Pressure Display Device using a few off the shelf parts. Following a brief search, he zeroed in on the BMP 180 sensor ...
This technique is similar to calculating the absolute altitude and may not always be completely accurate. The atmospheric pressure decreases as altitude increases and with the altitude changes ...
Many different factors affect the density of air. Most measurably, as altitude increases, air becomes less dense, decreasing atmospheric pressure. Standard altitude-pressure tables allow ...