I just finished testing a module capable of measuring a range of pressures! The experiment is centered around a small and inexpensive pressure sensor module available with the description “HX710B ...

Posted in Arduino Hacks Tagged altitude, arduino nano, BMP180, pressure sensor, variometer ← Make Your Desoldering Easier By Minding Your Own Bismuth ...

To program these chips, [Aaron] first had to wire up the microcontroller into a circuit. This was just a bit of perf board, a resistor, a few caps, and a USB A plug.

Learning to build a robot arm will teach you how to breadboard a circuit, how to program your Arduino, and how to work with moving parts.