Andromeda Stardust Posted June 21, 2018 Share Posted June 21, 2018 The driving controllers are paddles with a stopper. A switch would likely be all it takes with some internal programming. Fingers crossed; I love Indy 500! Even if the R77 had some code that told it to run Indy 500 with a paddle; that would work too. Driving controllers are an arrangement of contacts in a rotary shape. Paddles are potentiometers. Huge difference in parts and theory of ops.This. While the driving controller actually looks exactly like a paddle, it becomes readily apparent the driving controller has no stop at end of travel, in fact you can rotate it indefinitely. The pitch angle of the controller roughly corresponds to the direction of the car onscreen. Finally, a paddle is a variable resistance that rotates approximately 300 degrees in an arc, which measures zero ohms at one extreme and typically 1 megaohm at the other. Combined with a capacitor inside the Atari console, the paddle creates a time delay constant whenever the TIA discharges the cap/pot. The length of time it takes to recharge the pot is measured in software, typically by counting scanlines. Additionally the action buttons on the paddle are wired to joystick left and joystick right. The driving controller is a rotary encoder that rapidly alternates between the up and down inputs when rotated. The actikn button connects fire, same as an ordinary joystick. Anyway they both encompass vastly different tech even though both involve rotating a dial. Driving controllers and paddles used the same black plastic case, but paddles come in pairs connected to a single joystick port. Driving controllers hage separate plugs for each controller. Driving controllers were only used officially for Indy500 / Race, but are also supported in a couple homebrews. Plenty of games utilized paddles, both homebrew and period release games. One of my favorite single player paddle games is Activision's Kaboom! 2 Quote Link to comment Share on other sites More sharing options...
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