Its a Scientific Calculator (4 decimal accuracy) with functions like +, -, *, %, Sin, Cos, Tan, arcSin, arcCos, aTan, log made using evive.
With ultrasonic sensor mounted, the robot detects the obstcle when they come in its way. After the obstacle is detected in front of it, the robot analyses, which direction is the best to go using ultrasonic reading at various angles.
Implementing a plant monitoring system which monitors the temperature and moisture of plant soil and waters it when needed.
DIY powered skateboard controlled using Smartphone over Bluetooth communication with Arduino.