It’s also a very handy thing to have when paragliding, which is why [mircemk] decided to build a hand-held version using the Arduino Nano and a BMP180 pressure sensor.

The additional sensors include a nine-axis Inertial Measurement Unit, as well as temperature, pressure, humidity, light, color, and gestures sensors.

Melexis has brought out two relative pressure sensor ICs with extended robustness to harsh media. They complete the PCB-less platform to the market with, the company claims, “the most accurate ...