Chris Wheeler wrote: > > From: "Tony Nixon" > > > > Using a wand to display patterns may just require that the display bytes > > are output to PORTB continuously, timed by TMR0, > > I'm going to look at either a button on the grip to trigger the display/ > sync it OR just have it free running. Free running is easy, use a mercury switch somewhere on the staff, it will close/open at each direction when you stop it and swing it back. The PIC can measure the rough time per "swing" and do the display sequencing automatically. > > The big trick may to see the LEDs at different angles, unless you can > > wrap leds right around the wand. Some sort of light pipe might look > > good. > > My inital plan is clear conduit for the staff, with the leds in rings. Is this necessary? If you are swinging the staff back and forth in a rotary fashion, the viewing angle is just people in front isn't it? Side viewing will not get the full scan, and people behind will be behind your body. I would just optimise it for really impressive FRONT viewing, with bright leds facing that direction. It should be very impressive with the right leds! -Roman -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics