Battery Level Clock

A clock shows battery usage level of all your devices.

More details in https://www.lilingfei7.com/power-level-clock.

Step 1: Contextual Inquiry

Step 2: Design

Step 3: Prototype - System

Step 4: Prototype - Photon

Step 5: Prototype - IOS App and Firebase

Step 6: Prototype - Model

Step 7: Others