Previously, we figured out how to colour a pixel in a certain place. Today, we’ll be looking at some of the ways we can colour a whole bunch of lights by using different programming tools.
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Previously, we looked at how to wire up your LED string to the Arduino and the power supply. Today, we’ll be completing a demo of the first sketch and seeing how computers do what they do.
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LEDs are awesome. Arduinos are awesome. Programming gives you the power to make LEDs and Arduinos do exactly what you want them to do. Programming, then, makes you more than awesome! Today, I’m going to show you how to wire up our 64-LED strings to an Arduino.
I’ve updated the GCode CNC Demo on Github with an example of how to run 4 stepper motors. It could be extended to 6, 8, or more. Watch it in action
3D printers, laser cutters, water jet cutters, robot arms, delta robots, stewart platforms, the Makelangelo: all of these are examples of computer numerical control (CNC) machines. CNC machines need to move accurately and on command. Stepper motors are a great way to move accurately – they move a predictable amount and then stay where you put them. To command the stepper motors we need a way to easily turn our human desires into machine instructions into stepper motor steps. In effect we need our robot brain to be an interpreter. I’m going to show you a simple interpreter written for Arduino that lets you move stepper motors for your robots.
