One the many uses of a Raspberry Pi computer is connecting environmental sensors to the GPIO pins to collect or interact with environmental measurements such as ambient light, ambient loudness, temperature, barometric pressure, air quality, humidity, wind speed, soil dampness, or soil PH values. These measurements can then be sonified using either immediate values or data sets collected over long periods of time. Employing solar panels and a battery to power the Raspberry Pi allows for placing a set of sensors in differing environments away from standard power sources. Below are photos of a rig I created for just such data collection.