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ericjforman

Member Since: April 12, 2007

Country: United States

  • Can you post a photo of the 360-degree LED strip taken out of the fabric? Video showcase, and datasheet, doesn’t show it clearly. Curious how it’s achieved, through lens or refraction or extra LEDs?

    Also, would like to know if possible to source these without the fabric. The manufacturer website (www.inolux-corp.com) has no information on it.

  • UNRELIABLE! Do not use. The pin shape is rectangular and too thin in one dimension, and thus do not fit tightly in female headers of Arduinos etc. I discovered this after 25 hours of debugging intermittent sensor signals. Look at the datasheet - the front dimension is 0.64mm which is good, the side dimension is not marked but I measured it at 0.37mm - NOT GOOD. The pins wobble and may or may not make consistent contact.

    This issue has been reported over 4 years ago. These should be replaced with square pins like all other male headers.

  • Would love to find a male header version of this for low-profile shields. You can bend your own with long headers, but it would be nice to save time.

  • What kind of flux is best for extending paste life?

  • I also got JLY-538. Unable to find any info online.

  • This is a great guide to putting a cap in the battery compartment to ensure accurate performance: http://www.robotroom.com/CaliperCapacitor.html.

    Also worth noting when buying button cell batteries: LR44 is NOT equivalent to SR44 (aka 357). SR44 are silver oxide and last way longer than alkaline LR44 in caliper’s crappy so-called standby state.

    But I agree with phil & 333257 that disconnecting battery is the optimal solution.

  • Update: I had previously reported success operating this relay at 5V directly from Arduino digital out. I finally measured its coil resistance, it is 57 ohms, therefore it should need 88mA @ 5V to turn on consistently. However, I can confirm again that it works fine without a transistor, and I measure 55mA going through coil directly from Arduino pin. Since max (for Uno) is supposedly 40mA, not sure how this is happening, but it works. :-)

  • Here is new URL - but it doesn’t show coil info, and still has different item photograph showing 12V instead of 5V.

  • i ordered many of these for my class and i confirm about 1 out of 10 have defective red elements. SparkFun should replace yours.

  • hm, the manufacturer’s entire website is basically broken, so you can’t see the datasheet at the moment. but i thought it was quite different from the sparkfun one, which shows a coil resistance of 320 ohms. if that were the case, it would need only 16mA. when i have time, i’ll go back and actually measure the coil resistance and the current it’s drawing…

No public wish lists :(