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I started 2 years ago with an autonomous rover that chases light and avoids obstacles. We're now 11 versions further and version 12 is almost ready! Eventually the rover must cruise around without hitting any objects and return to a charging station when the battery runs low. I'll show you the evolution of the rover, starting with version 2 (version 1 was crap)

Version 2

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This robot waters the plants while you're on holiday! You have to line up the plants and through a GUI in Microsoft Access you can input the water demands per plant (how many times per week the plant needs water and how much). The water reservoir contains a mixer and an aeration unit (through lego compressors) to avoid dead water. The only thing not lego about it is the water pump and the robot is controlled by an Arduino Duemilanove. I've used a selfmade multipurpose motor driver pcb so all the electronics visisble aren't used ;)

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I recently recieved lots of Cybot parts from my friend who collected the parts of eBay, no longer wanting them he kindly gave them to me, my plan was to convert it to an Arduino based robot.

If you are not aware what a Cybot looks like here is a picture I took before the dismantling process:

The Cybot had some good features; line following, IR remote control, speech recognition and even the ability to find its IR ball and shoot goals into an IR goal.

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Atom 1.0: http://letsmakerobots.com/node/31322

My previous Arduino project had a controller that was connected to Atom and powered by my laptop. 

Parts: 

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Hello again everybody my name is chickenparmi, and I like robots.

Today I would like to show you my obstacle avoidance bot, with a difference. The difference with this bot is that it has been build onto an RC drift car, meaning it goes very fast and is very dangerous.

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Hey Guys,

I know, I didn't post for a while. Didn't have time to post some of the projects, sorry about it.

Alright, so here is our new project, we plan to go commercial with it. It is called Mobiton. It is a robotic shell for mobile devices (android currently). You can dock your phone on the device, an application written for the robot pops up and it brings the robot to life.

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Hey guys, I wanted to show off my first robot. He's a quadruped walking robot that I built from scratch. All parts were designed in SolidWorks and then cut out using my CNC router. Each of the four legs are controlled by 3 cheap hobbyking servos. I have an Arduino Nano controlling the 12 servos using the standard servo library but plan on upgrading to an Arduino Mega so I can have some more expansion options.

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This is my version of the "start here" robot. For me this was a programming exercise. I had written an obstacle avoiding sketch for my Rover 5. It worked but I was never really happy with it. Most code that I've seen online uses lots of delays in the code. Some time ago I swore to myself to never use the delay function in void loop ever again. There are various reasons for it, once you start writing more advanced code the delay function can cause lots of trouble. I also use a library (RF24network) in another project where I can not use the delay function.

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Here is the GDR Mk 2. I've recycled the parts from the GDR Mk 1 and made some additions/upgrades:

- Built a body for the robot out of a couple of storage boxes

- Added a 2 POF Turret to the top

- attached a laser pointer to the turret and programmed it to aim and fire

- split the power so there is now dedicated power to the motors.

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