Old Pueblo Engineering Center
Founded 2006 in Tucson, AZ. to explore Human/Robot Interactivity
“Drilling Brains for a New & Better Use of Technology”
Patents Pending

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Ready-2-Play Robotics
5t4nd1ng @ th3 3dg3 0f 5p3ct4t10n!

Give a child a toy and they're happy for an hour.
Teach a child how to make their own toys, and they're happy for life!


Connecting to a 3-color RGB LED
RGB = Red, Green, Blue

For most components there is a Signal PIN, a + PIN and a - or ground PIN

A basic LED (Light Emitting Diode) has the + and -/Gnd pins and the light is the signal emitted out

You may have a common anode or common cathode LED


The flat side of the base denotes the annode pin side


Typical common annode 3-color LED
Blue - Green - +V - Red

As the appropriate color pin is pulled LOW by the MCU pin the LED turns ON


The flat side of the base denotes the cathode pin side


Typical common cathode 3-color LED
Blue - Green - GND - Red

As the appropriate color pin is pulled HIGH by the MCU pin the LED turns ON