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Member #392462

Member Since: December 24, 2012

Country: United States

  • Your resistor values are fine. Green forward voltage drop is 3.2V so (5 V-3.2 V)/100 Ohms equals 18mA which is less than the rated value of 20mA. You may have gotten a defective part or your resistor failed. Both of these happen sometimes (or even your Arduino PWM port failed. That has happened to me recently. You can try swapping connections to troubleshoot that.

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