For my led cube i still need resistors. I'm going to make an 5x5x5 led cube with an arduino mega 1280.
Operating Voltage 5V
Input Voltage (recommended) 7-12V
Input Voltage (limits) 6-20V
Digital I/O Pins 54 (of which 15 provide PWM output)
Analog Input Pins 16
DC Current per I/O Pin 40 mA
DC Current for 3.3V Pin 50 mA
Flash Memory 128 KB of which 4 KB used by bootloader
SRAM 8 KB
EEPROM 4 KB
Clock Speed 16 MHz
I bought 5mm leds without specifications.
based on some information found on the internet, a white led uses 3.2v, 32a, see: http://ledcalculator.net/
when i search on websites which resistor i have to use, i found a lot of different values. Can anyone give me the correct resistor value to be sure that it will work for the cube?
many many thanx