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casino-type-wheel
SeaMonkey:
A compromise might be to have the wheel setup like an optic spinner, and as it spins, the computer goes through the selections of songs, and when it stops then you just hit a "GO" button to start the currently selected song.
rdagger:
Another way you could do it is with an AVR and some photoresistors behind the wheel. One of the songs would have a white backing and the rest black. You then place a photoresistor behind each song and connect them to the AVR which could calculate the position of the wheel based on which photoresistor sees the white backing. Then the AVR could communicate with the computer via a serial link or even over a network link. To cut down on photoresistors you could create a binary code on the back of the songs and have say 4 photoresistors evaluate the code.
Another method that is more difficult would be to have a barcode reading system. This way the back of the songs would have a barcode that the computer could interpret. You could make the removable labels so you could have thousands of songs and then place whichever ones you want on the wheel.
postkassen:
this is how the wheel its setup today: (please excuse my english, its neither my first nor second language)
the front (the spinning-part) is made of plexiglass, with a thin metal thing out near the edge, that touches the back plate. the back plate is covered with a metal plate, that is cut like a pizza, where the "slices" dont touch. so when the wheel is spun, the metal thing touches the plate all the time, and when it comes to a stop, the metal thing is only touching one "slice". then you push a button next to the wheel and the correct signal is signal is sent according to what "slice" the metal thingy landed on.
so the signal here goes from computer, through a wire to the back plate where it connects on the axle, then from the axle out to the plexi-front and through a wire out to the edge to the metal thing, that touches a "slice" and then through a wire to the universal "start-song-button" and then finally through a wire back to the computer.
what i was hoping was a great idea on how to eliminate the "start-song-button", hopefully a genious idea that doesnt require too much modification and bar code scanners on the wheel, cause the wheel looks great and works great already, except for the button flaw.
Chris:
--- Quote from: postkassen on December 10, 2004, 07:44:01 pm ---
what i was hoping was a great idea on how to eliminate the "start-song-button", hopefully a genious idea that doesnt require too much modification and bar code scanners on the wheel, cause the wheel looks great and works great already, except for the button flaw.
--- End quote ---
I can do that on the software side. I'll just wait until the input stabilizes for three seconds. How many slices do you have?
postkassen:
oh, i cant remember how many, ill check it out later today.
will that work in windows, with your program running in the background? or will windows have a problem with the fact that there is sent a constant signal to the computer?
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