Today I took some cardboard boxes to my gymnasium race track. I arranged them in the middle of the floor about six feet from the walls.

The car did not behave as expected. It is futile to try to describe what it did. I shall video tape it (probably not for public consumption) and try to analyze what is happening.

The SRF05 flashing LEDs are constantly illuminated. That should be good.

My present code has only two 'regular' states.

1. Going forward being guided by the side looking SRF05. The forward pings are monitored for something close enough to merit turning hard left while still going forward.

2. Going backward and turning to the right because the front looking pinger sees something too close. The backward state is left by either timing out, or by the forward looking pinger saying that the obstruction is no longer there.

With the car on blocks and me manipulating a large piece of card board, the wheels move true to concept. In the gym was something else.

Interesting stuff, real time control code. I made my living in data communication hardware and software development. Nothing actually 'moved' in the common sense of the word.

Ken