I'd like to make a project that can light up 26 different LEDs in different sequences (spelling out words with LEDs next to a letter).
I own a number of arduino Unos and Leonardos. I looked for some type of breakout board and came across these 16 channel multiplexer boards from a few sources: https://www.banggood.com/ADC-CMOS-C...-Sensor-Controller-For-Arduino-p-1514065.html
Looks like that can sink 20ma of current, so I should be able to use two of those to get enough channels to drive 26 different LEDs. One downside I see is that I couldn't turn on all the LEDs at once, which I don't really see the need for so I think that's ok.
But maybe it would be easier (and more expensive unfortunately) to purchase an Arduino Mega? Then I would not need any additional hardware, other than 26 resistors. Looks like the digital pins on the Mega are also rated at 20ma.
Yes I could purchase addressable LEDs, but for my application (a Stranger Things wall), I don't think I could make those look right.
Thoughts?
I own a number of arduino Unos and Leonardos. I looked for some type of breakout board and came across these 16 channel multiplexer boards from a few sources: https://www.banggood.com/ADC-CMOS-C...-Sensor-Controller-For-Arduino-p-1514065.html
Looks like that can sink 20ma of current, so I should be able to use two of those to get enough channels to drive 26 different LEDs. One downside I see is that I couldn't turn on all the LEDs at once, which I don't really see the need for so I think that's ok.
But maybe it would be easier (and more expensive unfortunately) to purchase an Arduino Mega? Then I would not need any additional hardware, other than 26 resistors. Looks like the digital pins on the Mega are also rated at 20ma.
Yes I could purchase addressable LEDs, but for my application (a Stranger Things wall), I don't think I could make those look right.
Thoughts?