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Re: Using 6 LEDS to light Nixie bases with microcontroller output pin


Kevin B
 

--- On Fri, 8/13/10, DanielK <kuriloff@...> wrote:
-snippd by kb-
How can I specifically use the Neonixie 6 Digit Controller to dim the 6 LEDS and what driver transistor should I use? What base resistor? WIll this sink or source too much curretn from the microcontroller? Current sourced or sinked from outputs should not exceed 15ma per pin.

I need help to pull this off with Moses' microcontroller.
---

A couple of questions first:
1. Is Moses' microcontroller running off 5V or 3.3V?
2. Does your microcontroller have a spare PWM output?pin or perhaps an interrupt driven timer/counter?
3. Are your LEDs all the same color?? What is/are the color(s)?
4. Are your LEDs high/medium/low effeciency (mcd?@ 10mA)?
5. Are you currently dimming your Nixies with Moses' microcontroller?? Is it based on ambient light?
?
...kevin

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