Acid rain sucks, significantly should you run a elaborate college with numerous pretty statues outdoors. For those who’d wish to try to predict when it’s going to happen, you may like this challenge from [Mohammad Nihal].
When rain is especially acidic, it’s normally due to the mix of sulfur dioxide or nitrogen dioxide and moisture within the environment. This mix finally ends up making sulfuric acid or nitric acid that then falls to the bottom as precipitation. The low-pH rain that outcomes can hurt ecosystems, soften statues, and simply usually give everybody a tough time.
[Mohammed] determined to try to predict acid rain by constructing a easy machine based mostly on an Arduino Nano. It information SO2 ranges with an MQ-136 gasoline sensor, and NO2 ranges with an unspecified MEMS-based sensor. There’s additionally a DHT11 temperature & humidity sensor within the combine, which is vital since moisture content material performs a task. The Arduino reads these sensors and makes use of a easy predictive algorithm to create an “Acid Rain Danger Rating” that’s displayed on a 16×2 character LCD. It’s all wrapped up in a enjoyable 3D printed enclosure that appears like a cloud.
There are some limitations to the machine. Specifically, it doesn’t essentially have a fantastic learn on atmospheric SO2 and NO2 ranges within the environment, significantly at altitudes the place rain is shaped, as a result of the sensor sits contained in the machine indoors. Nevertheless, the essential idea is there, and enhancements may actually be made with some upgrades and additional analysis.
