- Fri Jun 17, 2016 5:38 pm
#190274
Although this question is intended for the Leonardo, I need the answer for the UNO too since the Leonardo is being discontinued.
How many fully addressable RGB pixels can the Leonardo/UNO reliably control on the signal bus? Please note I am asking this question about control power, not raw power for illumination. I fully understand the requirements and techniques for power distribution amongst hundreds of pixels, but I don't understand the limitations of the control signal power which must be provided from one end of the string and then serially traverse those same hundreds of pixels. I assume there may be two answers to this question; the total numbers of pixels by all pins, and the total number from an individual pin since different pins can control separate strings of LEDs.
Thanks for the help.
How many fully addressable RGB pixels can the Leonardo/UNO reliably control on the signal bus? Please note I am asking this question about control power, not raw power for illumination. I fully understand the requirements and techniques for power distribution amongst hundreds of pixels, but I don't understand the limitations of the control signal power which must be provided from one end of the string and then serially traverse those same hundreds of pixels. I assume there may be two answers to this question; the total numbers of pixels by all pins, and the total number from an individual pin since different pins can control separate strings of LEDs.
Thanks for the help.