Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Tutorial: Introduction to D3: Basically we just plot hidden circles randomly on the screen, and then transition them to a portion of the screen. Then we add some interaction to it so that the circles ...

2. Lights & Display Screen The robot has four RGB LEDs (numbered 0–3) and a small colour screen. show_light_rgb — set any combination of lights to an RGB colour. turn_off_lights — turn all LEDs off.