I worked on a research team with four other students to create an autonomous car platform. We built an autonomous car using our platform that we call FlowBot. FlowBot uses optical flow to analyze the pixels in consecutive frames to avoid obstacles. The PiCar tied for came in the top 10 out of 30+ international teams in the Silk Road Robotics Innovations Competition at Xi'an Jiaotong University in Xi'an, China.
PiCar is an open sourced autonomous car platform. It isn’t autonomous by itself, but you can easily add sensors to control the car with an Arduino or Raspberry Pi.