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[ShooterBot]

Robots Lego Mindstorms Date: Nov 2011

ShooterBot spins around, looking for close targets to shoot at. Its proximity sensor starts firing signals when an object gets as close as about 20cm, at which point the robot gives a warning by showing blue instead of green light. The light turns red after about 2 seconds provided that the object does not move away and the robot shoots a ball at it.



The shooting mechanism consists of a stack of balls where the most bottom ball gets pushed away with a considerable force when a motor-controlled tube moves fast towards it and back. The ball can fly for up to about 1.5 metres before touching the ground.

Improvements to the robot could involve random walk in a designated area or multiple shots, at which point the robot would truly become a guardian of its territory. It could even collect the balls it shoots and stack them on again.

This was the first robot I made from Lego Mindstorms on my own, although I did follow instructions that came with the NXT box. This means that no actual programming was involved and I used Lego UI NXT-G that generates code on its own.


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NXTPong

A custom-built lego machine for playing pong, featuring two controllers connected to the Mindstorms NXT brick. Programmed using NXC.

NXC UserInteraction Library

The User Interaction (UIn) Library helps you create standard user interfaces (multi-line aligned texts, buttons, menus, etc.) and capture user actions on the NXT brick. The library works with the intelligent brick buttons and keeps all your sensor ports free for your program to use.

Setting up NXC Development on a Mac

This tutorial provides a step-by-step guide for setting up your Mac or Linux machine and your NXT brick for development with NXC. We will use the enhanced NXC firmware in order to enable extended functions for development.

Robogator

Robogator is a robot alligator that can walk and bite. Two rear legs powered by motors push the robot's body forwards or drag it backwards and wheels at the back and front assist the motion. The robot has a camera on its head and a motor that controls the jaw is activated when an object is near.

pyCreeper

The main purpose of pyCreeper is to wrap tens of lines of python code, required to produce graphs that look good for a publication, into functions. It takes away your need to understand various quirks of matplotlib and gives you back ready-to-use and well-documented code.

Novelty detection with robots using the Grow-When-Required Neural Network

The Grow-When-Required Neural Network implementation in simulated robot experiments using the ARGoS robot simulator.