BMP180 is a high-resolution sensor that measures the air pressure in its environment and gives a digital signal according to this pressure. With this sensor, height can be measured according to air pressure.

It can be used in various Arduino and Robot projects, especially drone and multicopter projects. It is small in size and useful. It can measure between 300-1100hPa. It can provide altitude information between 500m and 9000m. It has a resolution of 0.03hPA, i.e. 0.25m.