| ??? 10/09/10 16:29 Modified: 10/09/10 18:27 Read: times |
#179014 - More modern approach Responding to: ???'s previous message |
Per said:
If a stereo doesn't have a potentiometer for the volume, it normally instead have a + and a - button, increasing/decreasing the volume. Similar to a four-way digital joystick with switches What happens now is they have a dial that just spins and makes a click. This implies that they are using some form of rotary encoder to detect which way the wheel is turning and thereby increasing/decreasing the volume by increments defined by line counts of the encoded wheel or divided by an MCU. This same approach can be applied to a modern joy-stick using a linear encoded line, but one might have to make such a mechanism because I do not believe many people make this device. In modern joysticks in the arcades, they used to have micro-switches, but they have since moved on to optical switches. Alas, they do not have the analog feel, but the contraption I am inspiring would have the analog feel that could have increments easily programmed for gross or fine adjustments. EDIT: After some extra thought, using an absolute encoder would work best in mission critical situations. If using a non-absolute, one would have to have a zero-ing mechanism once in a while because the user could move the joystick quick enough for the reader to get lost (maybe, modern MCUs/FPGAs are getting fast). Just for fun, http://www.ozstick.com.au/prod_joy.html actual arcade joysticks. AND Something that looks like what I described, but is nowhere near what can be done. They incorporated the rotary, but did not incorporate the joy into analog feel. http://www.happcontrols.com/joysticks/50561800.htm As a final thought, the control does not need to be a stick that can move every which way, but maybe two slide switches that are absolute linear encoders (similar to driving a tank in those old games). I mean have you ever tried to control a game using a joystick and feeling how unwieldy it is compared to playing a game with two slides where the game incorporates an analog feel? I would not got with a resistor for long distances because a resistor style control is distance limited to the measuring device! BAM: http://www.austriamicrosystems.at/eng/Produ...ck-Modules Magnetic encoder joystick..... extremely high reliability and easily interfaces to uC... cheap too |
| Topic | Author | Date |
| Joystick Resistive or hall effect | 01/01/70 00:00 | |
| Switch Type Joysticks | 01/01/70 00:00 | |
| Link... | 01/01/70 00:00 | |
| cheaper ones | 01/01/70 00:00 | |
| The Parallax Price | 01/01/70 00:00 | |
| RE:Joystick | 01/01/70 00:00 | |
| Not potentiometer normally gives other result than joystick | 01/01/70 00:00 | |
| momentary switch? | 01/01/70 00:00 | |
| Yes, a "set" switch is usable with analog joystick | 01/01/70 00:00 | |
| Memorized control point.... | 01/01/70 00:00 | |
| More modern approach | 01/01/70 00:00 | |
| Important to get intuitive results | 01/01/70 00:00 | |
I think one can find this... intuitive feel | 01/01/70 00:00 | |
| I always look here first | 01/01/70 00:00 |