You'll have a bit of control over what you choose for the motion sensor, motor, and jumper wires. You can pick up a pack of six SG90 motors from Amazon for a little under $12. A 10-pack of the HC ...

Pune: Everyday urban challenges with stinky, overflowing garbage bins is often an eyesore. Seven second-year students from Annasaheb Magar College have developed a sensor-based public smart bin ...