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Engagement
  • Author Author: RParkerE
  • Date Created: 26 Apr 2015 3:46 AM Date Created
  • Views 1586 views
  • Likes 1 like
  • Comments 13 comments
  • mini_automator
  • enchanted-objects-design-challenge
  • enchanted-objects
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Recommended

Genie Update

RParkerE
RParkerE
26 Apr 2015

Unfortunately I have gotten stuck on my project and stuffed the genie back in his lamp for a short while. I am currently working with the Infineon RGB Shield and have run into multiple issues. I am trying to run a single 5mm Red LED with it. I realize that the bulb needs to be rated for 300mA, thats why I am using resistors to allow for the 20mA LED not to burn out. I am driving it with a 9V battery, yet I realize that the rating is for 12V-48V, and this may be my issue. I am running into some mysterious magic, and I am beginning to believe that my genie has placed a curse on me. I am reading 4V-4.5V output and across the resistor, but 8V across the LED, along with the fact it will not light up unless I touch the leads of my multimeter while trying to measure the resistance, AND apparently there is no current throughout the circuit. I have bought a 300mA rated LED and am waiting on my low impact CFL to arrive, but I was trying to run test codes with a simple LED for an update. Unfortunately this has been a larger obstacle than presumed originally. But luckily I am a persistent competitor and will not let this unfortunate setback stop me from finishing this amazing opportunity.

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Top Comments

  • Jan Cumps
    Jan Cumps over 10 years ago +2
    For the Internet of Holiday Lights game, I managed to use that shield with 3 common LEDs in series without a resistor. Less didn't work right. You're realty scraping against the limits of the chip here…
  • Workshopshed
    Workshopshed over 10 years ago in reply to RParkerE +1
    I was thinking that CFL have inbuilt electronics and many say "not dimmable" on them.
Parents
  • Workshopshed
    Workshopshed over 10 years ago

    Hi Parker, the board is expecting an LED with a higher junction voltage, perhaps 3 standard LEDs in series? Also you can dial down the current but I've not quite got my head around that part of the data sheet.

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  • Workshopshed
    Workshopshed over 10 years ago

    Hi Parker, the board is expecting an LED with a higher junction voltage, perhaps 3 standard LEDs in series? Also you can dial down the current but I've not quite got my head around that part of the data sheet.

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