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A simple, very bright pink LED LilyPad. Light up the night!
LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad was creatively designed to have large connecting pads to allow them to be sewn into clothing. Various input, output, power, and sensor boards are available. They're even washable!
Note: A portion of this sale is given back to Dr. Leah Buechley for continued development and education of e-textiles.
Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.
Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
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If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.
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what resistor would i use if i used 10 of these with the redboard?
That depends on a lot of things such as how you have them configured (series, parallel, each on individual I/O pins), as well as how bright you want them. Most LEDs can not handle more than 20mA of current. Assuming 5V (even though you should technically take the forward voltage into account) you can calculate the resistance needed to keep the LED from getting more than 20mA. But we are also assuming that your power supply is able to put out more than 20mA, you aren't running them in parallel where the current is split between different LEDs etc. 20mA is also the maximum current, often you can't tell the difference between 20mA and 10mA, and lower than that becomes dimmer but not unusable. Also keep in mind that these already have a 100ohm resistor on them, which was calculated for 5V so you shouldn't need to add your own anyway.