Main Restorations Software Audio/Jukebox/MP3 Everything Else Buy/Sell/Trade
Project Announcements Monitor/Video GroovyMAME Merit/JVL Touchscreen Meet Up Retail Vendors
Driving & Racing Woodworking Software Support Forums Consoles Project Arcade Reviews
Automated Projects Artwork Frontend Support Forums Pinball Forum Discussion Old Boards
Raspberry Pi & Dev Board controls.dat Linux Miscellaneous Arcade Wiki Discussion Old Archives
Lightguns Arcade1Up Try the site in https mode Site News

Unread posts | New Replies | Recent posts | Rules | Chatroom | Wiki | File Repository | RSS | Submit news

« previous next »
Pages: [1]
  
Go Down

Author Topic: finding led for trackball...  (Read 1071 times)

0 Members and 1 Guest are viewing this topic.

bossyman15

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 416
  • Last login:March 05, 2012, 01:35:08 pm
  • I am now building my own arcade controls!
    • Bossyman15 Arcade Pics
finding led for trackball...
« on: May 11, 2006, 08:06:19 pm »
i want to connect trackball light to ledwiz but my lamp is 14v so i need 5v or less. know of any led?
Logged
My website: www.bossyman15.com Lots of arcade pictures inside!

hanelyp

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 72
  • Last login:January 10, 2009, 11:08:19 pm
Re: finding led for trackball...
« Reply #1 on: May 11, 2006, 09:55:48 pm »
You want to run a 14V lamp controled by a device designed to feed 5V to a LED?  Or replace the lamp with a LED?  For the former, there are relays that operate on 5V to switch higher voltages.
Logged

bossyman15

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 416
  • Last login:March 05, 2012, 01:35:08 pm
  • I am now building my own arcade controls!
    • Bossyman15 Arcade Pics
Re: finding led for trackball...
« Reply #2 on: May 12, 2006, 01:48:25 am »
replace lamp with led.
Logged
My website: www.bossyman15.com Lots of arcade pictures inside!

hanelyp

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 72
  • Last login:January 10, 2009, 11:08:19 pm
Re: finding led for trackball...
« Reply #3 on: May 14, 2006, 07:24:49 pm »
From an electrical standpoint, just put the right resistor in series with the LED for the voltage.  14V supply, 20mA current through the LED, E=IR : R=E/I -> 700ohms should work (shortcuts taken).
Logged
Pages: [1]
  
Go Up
« previous next »