How many blocks do you need to turn your NXT into a remote controlled car? three blocks (well, four if you count the loop). Here’s a screenshot of the program that does it. The first block is the PSP-Nx block I’m writing for mindsensors.com, which communicate over I2C with the PSP-Nx PS2 controller interface by mindsensors.com. This new sensor block outputs the four analog joystick values scaled to the range -100 to +100, and can also check the status of the many buttons in the PS2 controller. Of course, it can be used within a Wait block, a Loop block or Case block, just like any other sensor block.

The block is planned to be released next month, when the NXTToolkit for LabView is announced.