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16  Using Arduino / LEDs and Multiplexing / Using PWM pins for digital & analog writes alternately? on: February 22, 2012, 08:37:47 pm

Suppose I use Arduino Uno to build a 3x3x3 LED cube. The patterns would
be displayed using the digitalWrite() function.
The PWM pins would be assigned to 6 of the 9 columns on each of
the 3 layers. Can I employ these pins to intermittently use the analogWrite()
function, so as to fade-in & out at least 6 of the 9 LED's on each layers?

In short, can I employ the PWM pins to use the digitalWrite() & analogWrite()
functions alternately for on/off & fade-in/out respectively on 6 LEDS of each of
the 3 layers?

Thank you smiley
17  Using Arduino / Microcontrollers / Arduino Uno Rev3 as In-System Programmer? on: February 21, 2012, 05:58:53 pm
Hi friends

I have a few questions about using the Arduino Uno Rev3 as an In-System Programmer.

#Does the Reset pin hack, where the reset pin is held high using 120 ohms resistor, works?
If not, how do we do it then?

#After the bootloader is burned, do we have to remove the microcontroller from Uno Rev3 in order to load the sketch as described here...
(I am looking at the minimal circuit)

#Any way of using the above mentioned breadboard tutorial to program Atmega8?

Thanks for your time  :-)
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