Build Your Amazon Alexa - Artificial Intelligence
Building a DIY Amazon Echo is super easy. The entire system is obviously for DIY fans but because it’s completely open source you can build out based on the base offering. It’s a surprisingly cool piece of kit and I, for one, welcome our voice activated Raspberry Pi-powered robotic overlords.
Refrence:
https://github.com/alexa/alexa-avs-sample-app/https://www.raspberrypi.org/blog/amazon-echo-homebrew-version/
http://lifehacker.com/how-to-build-your-own-amazon-echo-with-a-raspberry-pi-1787726931/
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Make Obstacle Avoiding Robot using Arduino

Tutorial On Arduino Robot
By: Utsav Sapkota
Difficulty level: Easy
CPU: Arduino uno
Input devices: Sharp GP2D12
Output devices: Plastic gear motors
Coding language: Arduino
Power: 4AA...