APC 40, is it bus powered?
Posted: Sat Jan 17, 2009 5:31 pm
Does anyone know if the APC 40 is bus powered?
Ralf wrote:If I count correctly, that's 379 LEDs which might light at the same[nis] wrote: The APC40 is unfortunately NOT bus powered. Due to the huge amout of LEDs, the overall power consumption is too high to get powered from a USB connection (USB can only provide a max. of 500 mA).
time, especially if you tinker around with MfL. 240 for the endless encoders, 80 for the 5x8 Matrix, etc.
They are quite bright, so even if they are low power versions and take only, let's say, 4 mA (in case of a 1:1 busy cycle), that's already 3 times the capacity of an USB link, for the LEDs alone. Wow!