Hello,
The lights are visible But very dimly. i am attaching the picture when it is in analog mode.see the light intersity of last 9 LEDs and the other(upper) ones.
actually the voltage from the output pin of the microcontroller for the 9 LEDs is only 0.67 voltages.But it should be 5v. i don't know why it is happening. this is why the 9 LEDs are dimmed. But i believe that with 0.67v the Base-emitter junction is forward biased so the LEDs should light in their normal way. why are they dim?
or it may also be happening that when the voltage is so low from the microcontroller then current may also be Low. that may be the reason why the LEDs are dim. what do you sujjest?
The lights are visible But very dimly. i am attaching the picture when it is in analog mode.see the light intersity of last 9 LEDs and the other(upper) ones.
actually the voltage from the output pin of the microcontroller for the 9 LEDs is only 0.67 voltages.But it should be 5v. i don't know why it is happening. this is why the 9 LEDs are dimmed. But i believe that with 0.67v the Base-emitter junction is forward biased so the LEDs should light in their normal way. why are they dim?
or it may also be happening that when the voltage is so low from the microcontroller then current may also be Low. that may be the reason why the LEDs are dim. what do you sujjest?