|Aug 21, 2012, 12:08 AM|
Joined Sep 2007
More cool lighting
I found some more cool LEDs.
These are 10mm (fairly big). They are RGB (red/green/blue) all inside one lens with a chip that fades from color to color.
First it does the primaries, then it fades the rainbow, then repeats.
Put it inside one of the white canopies (red/white or blue/white) and the effect is mesmerizing.
They run directly off 4.2V battery.
20 for $7.95 http://www.ebay.com/itm/140804344168...84.m1497.l2649
I scraped some of the solder mask off the ground plane just to the left of the red battery lead. On my board, it was where the date is silkscreened.
Use a meter to make sure you have 4.2V across the red wire to the scraped spot.
Remove the battery.
Tin the bare copper. Bend the LED leads at right angles close to the LED.
Cut the longer one a little longer so you can keep track of it.
The longer lead goes to the red wire pad, the shorter to the scraped spot.
Tin the leads, then solder to the pads.
I couldn't get a good video of it (for some reason the cameras didn't like the brightness of the led and washed it out to white).
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