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LED Typical LED forward bias voltage: 1.5 to 2.0 V Typical currents needed to light LED range from 2 to 15 mA.
Turning on a Diode (1) V2 =3.3 V V1=3.3 V, LED is off. V1=0V, LED is on. This method is used by the 7-segment LED display on basys 2
Turning on a Diode (2) V1 =0.0 V V2=3.3 V, LED is on. V1=0V, LED is off. This method is used by the LED outputs on on Basys 2
A 7-Segment Display Containing Seven Light Emitting Diodes Used by Basis2
Segment Values Required to display hex digits from 0 to F
Display Lower Case d
K-map for the segment e
Erroneous Result (Not the right way to display “C”)
Error in Representing “b” 1 1 1 1 1 (missing!)
One Way of Representing “b” 1 1 1 1 1 (missing!) 1
Decimal Point On
Showing Only 1 Digit
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Special Purpose Diodes
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