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Results tagged with led
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user 39532
An LED is a light-emitting diode. Lighting an LED is considered the "Hello world" of a circuit design, and it can be as simple as using a series resistor, or it can get more complicated, involving PWM and multiplexing.
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Phototransistor responsivity does not match datasheet?
My problem is that, even when I calibrate for I_f, the detected voltage from the red LED is much higher than the green LED -- to the order of 2.5x or higher. … However, these results seem to be independent of phototransistor and LED, as I have been able to reproduce this result with another phototransistor/LED setup in the past. …
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