Here a simple implementation of a low cost robotic arm with a on-board webcam for live video streaming. The arm skeleton was made by plywood while as muscles I use 4 cheap motors for model airplanes.
The robotic arm and the live video are managed by a simple WEB page generated in PHP who can be displayed through the Firefox WEB browser. In this manner the robotic arm can be managed by a PC as well as a tabled or smartphone!
Here a screenshot of the control panel: