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To have an input you will need a sensor to have as an input. Your sensor could be a switch, ultrasonic sensor, potentiometer, etc,.
This is the brains of the operation. You can use an arduino or another simple circuit that will control your output. This is just simply a circuit that ...
This uses the output from the processor and uses it to do something. This could be a servo or an led.
This is an example you can do if you have the Board Of Education Shield kit by parallax. I used one of their projects as an example. In ...
Self-Learning Rock - Paper - Scissors Robot from Lego Mindstorms NXT!by prrgg14935
Robotics guideby vonPongrac
"Can" Botby ywj_pheej
How to enter the iRobot Create Challengeby jeffreyf
How to Tame Your Robotby madelinegannon
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