“Memo” is the program which will save light intensity value and compare the current light intensity with the saved one to make decisions about what to do next. The program is here. When I progra...

In this version, I added the function to use the ultrasonic sensor to detect approaching objects and let the NXT avoid them. It works, though there are still some “bugs,” partly because of the limi...

After spending some hours getting more familiar with the functions of NXT-G blocks, I simplified the algorithm. The new version can be downloaded here. I also created a more simplified version i...

The first scheme I used is to let the robot do a random walk and stop when the light is stronger than a threshold. I use the software NXT-G, which comes with the Lego NXT 8527 package, to program ...

With the project Euglena I want to build a Lego NXT robot to find light. The name “Euglena” comes from the single-cell organism which can sense light and swim to it.The sensor I am using is the lig...