| Main > Main Forum |
| $2 USB Optical rotary upgrade for most joysticks |
| << < (9/13) > >> |
| Le Chuck:
You wait until the part won't float or sink. I'd say closer to 25% set. As soon as possible. Just with some of the cheaper resins, even tho they say they're self bonding, I still notice a faint join line. The big pain in the ass is polishing off the sprue and mould seams at the end. I used to have a good three part mold to do embeds but it is too small for this application. I also don't know which resin would have the durability the trackball would need. Most of the resins look great but won't stand up very long to that kind of use. |
| griffindodd:
Ordered some resin and some ping pong balls, should be here in 2 days (I love Amazon Prime) the rotary encoders are already en-route, so first of all I have to figure out how to wire them Outputs on the encoder... Datasheet here quote from a post on the sparkfun web site... --- Quote ---The datasheet doesn’t say which pin goes to what, so here you go: The side with 3 pins is the rotary encoder output – central pin looks to be common. The easiest way to use this with an arduino is to connect common to ground, and then use the Arduino inputs in pull-up mode. The LEDs and central button are interfaced using the side with 5 pins. With the shaft facing away from you, looking at the bottom of the device, with the 5-pin side on the top and 3-pin side on the bottom, the pins are: Common (+5v), Blue, Button, Green, Red. Pressing the shaft button shorts the +5v common and the center pin. There are no internal resistors, so be sure to use one on each of the 3 LED pins. Use a 120ohm (or higher) resistor on the red, and a 68ohm (or higher) resistor on the other two, if you’re using 5v. --- End quote --- Looks like a will need a U-HID nano or A-PAC - U-HID Analog ---------------------------- Pin B - U-HID +5V ---------------------------- Pin A - U-HID -5V ---------------------------- Pin C On Pac64 - +5V ---------------------------- Pin 5 - BLUE ---------------------------- Pin 4 - GREEN ---------------------------- Pin 2 - RED ---------------------------- Pin 1 On iPac (If you want to use the button) - Button ---------------------------- Pin 3 Pressing the button shorts pin 3 to pin 5 |
| pinballjim:
All I know is I want a Dia de los Muertos trackball. :P I can buy the ceramic skulls for a couple of bucks each and they're just about the perfect size. |
| Gray_Area:
--- Quote from: pinballjim on September 11, 2012, 09:03:39 pm ---Here I was about to object and you covered it in the last ten seconds. Brilliant. --- End quote --- Yah, I was waiting for that part, too, although then I noticed I had overlooked the obvious. The embedded idea is cool, though not everybody is going to want to replace their shafts. The miniaturation happening is making this look better and better. |
| BadMouth:
A-Pac is for potentiometer based controls. A U-hid or U-hid nano can be configured to work. An Opti-Pac or Opti-Wiz(groovygamegear) are made specifically for optical encoders. An old roller ball mouse hack is the other option. Not sure if the low resolution of this encoder would be an issue. |
| Navigation |
| Message Index |
| Next page |
| Previous page |