On Mon, 2011-08-22 at 07:08 -0400, Walter Bender wrote: > Turtle Art v 114 has an accelerometer block in the sensor palette that > should appear on 1.75 machines. Maybe you could play with it? (It > pushes X, Y, Z values to the stack: you retrieve them with 3 > consecutive 'pop' blocks (found on the palette with the gear).
Nice! I made a simple "position the turtle based on accelerometer x and y" and found the sensor to be quite noisy. Averaging 5 values seemed to be a lot better but was quite slow. I'm not sure if the problem was my average code (a loop adding each value to a box and discarding z into a comment (what happens if you overflow the stack?)) or the sensor itself is slow to respond. I am getting perhaps 5Hz averaging 5 values and using setxy to position the turtle. I get much more than that without the averaging. (I tried overflowing the stack, and didn't manage to do it, but at 5Hz, it might take a while) _______________________________________________ Testing mailing list [email protected] http://lists.laptop.org/listinfo/testing
