Do you ever find yourself almost running into things while you are playing Pokemon Go? It is very easy to get so engrossed in the game that you forget about your surroundings. With this awesome project from Seeed Studio you can build your own “safety badge” which alerts you of potential hazards.
The badge uses an ultrasonic distance sensor to detect potential obstacles, a vibration motor (similar to the types of motors found in most phones) to alert you when you are approaching a hazard, and an Arduino to interface between the sensor and the motor. To get started building your own safety badge checkout the following link.