Tag Archives: system

Controlling Mindstorms EV3 with a Raspberry Pi

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Original Article: The MagPi, The Official Raspberry Pi Magazine

LEGO Mindstorms is a great tool to gain experience in understanding robotics, but what if you wanted to make your own input sensor? In this guide, we will show how simple it is to construct a circuit to control a Mindstorms robot through GPIO in Raspberry Pi.

We will show every step from connecting the robot to writing the code. The result will be a program in Ch, a superset interpreter of C/C++, to control the direction of the robot with a push-button.

NXT Keyboard for Ordering System

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I’ve been working on an NXT Keyboard for an Ordering System to use with my LEGO Mindstorms NXT Robot Crane with Ball Sorting Conveyor System, in conjunction with my NXT Line Following Dump Truck. The Keyboard uses 6x RCX type Touch switches connected to my RCX-TouchMux Sensor Multiplexer.

NXT Crane with Ball Sorting Conveyor System

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This is a LEGO Mindstorms NXT Crane which delivers balls to a Coloured Ball Sorting Conveyor System. The Ball Sorting Conveyor System uses RC Servo Motors to control the Conveyor and Sorting Mechanism. A single NXT Brick Controls 4 standard 180° RC Servos in the Sorting mechanism and another is used for the Crane’s Grab. Two Full-Rotation 360° Servos are used to drive the two conveyor belts. The Servo Motors are controlled via Mindsensors NXTServo Controller module.

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