A low-cost ROS navigation platform equipped with:
* Odroid XU4 ~$80
* YD Lidar ~$80
* STM32 base board ~$40
* Battery ~$20
* Chassis with 2xDC motor with encoder ~$30

Github repo:
https://github.com/zlingkang/rover_robot

With lidar:

Joystick control

Gmapping demo