Openmoko:Usb light
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:# Adopted from [http://www.eeepc.de/thread.php?threadid=4109 this thread (german)], you could use a [http://www.micrel.com/_PDF/mic2026.pdf MIC2026] together with a [http://www.nxp.com/acrobat_download/datasheets/PCF8574_4.pdf PCF8574] connected to the I²C-Bus and have it all placed somewhere inside the case with two holes for the LEDs to have the USB-port still available. (The stuff with the holes etc. could be ''theoretically'' realized somehow with the [http://downloads.openmoko.org/CAD/ CAD files] ;-P ) | :# Adopted from [http://www.eeepc.de/thread.php?threadid=4109 this thread (german)], you could use a [http://www.micrel.com/_PDF/mic2026.pdf MIC2026] together with a [http://www.nxp.com/acrobat_download/datasheets/PCF8574_4.pdf PCF8574] connected to the I²C-Bus and have it all placed somewhere inside the case with two holes for the LEDs to have the USB-port still available. (The stuff with the holes etc. could be ''theoretically'' realized somehow with the [http://downloads.openmoko.org/CAD/ CAD files] ;-P ) | ||
:--[[User:Jomat|Jomat]] 19:42, 8 December 2008 (UTC) | :--[[User:Jomat|Jomat]] 19:42, 8 December 2008 (UTC) | ||
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+ | The idea with the heat shrink tube sounds great. I will test it :) Yes with smd components it will be smaller :) The third idea is a bit risky. I like extensions :D Thanks for your ideas. --[[User:PBeck|PatrickBeck]] 18:57, 11 December 2008 (UTC) | ||
[[Category:Hardware ideas]] | [[Category:Hardware ideas]] |
Latest revision as of 20:57, 11 December 2008
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[edit] USB-Light
One thing that i like on my older phone, a Sony Ericsson W800i, is the light (camera light, but you can use it without the camera). So i thought about a solution for my Freerunner and the result is the following article. At least ⇒ At own's risk ;)
[edit] Idea
- Two leds
- Two resitors
- a miniusb B male connector
- a bit solder
- and a bit hot glue
and you have a light for your Freerunner :D
[edit] Instructions
[edit] Components
- 2 x white LED ultra bright ⇒ LED 3-2000 WS on Reichelt (german distributor for electrical components)
- 2 x 75 Ohm resistors 1/4 W ⇒ 1/4W 75 Ohm resistor on Reichelt
- 1 x USB mini B cable ⇒ AK 673-A USB mini B to normal usb connector on Reichelt
[edit] Schematic
German Wikipedia-article about the universal serial bus ⇒ http://de.wikipedia.org/wiki/Universal_Serial_Bus#Farbkodierung_und_Pinouts
[edit] Preparation
Cut the usb cable and seperate the rubber of the usbmini connector and remove the pins 2,3,4 (a lower risk of a short circuit). Now solder the components according to the schematic. WARNING ⇒ risk of a short circuit on the metal parts of the connector. Check the circuit without the metal part, if it works.