Collate spectral color data of varying fruits and vegetables and interpret this data set with a neural network to predict ripening stages.

Keep that bad virus away from your safe zone. Build your own real-time thermal vision device to detect unwanted visitors at your door.

An easy to build simple weather station that connects to your smartphone via WiFi and Blynk.

Make an EC/pH/ORP/temperature sensor device to monitor water. Interact with it through a website using Bluetooth Low Energy.