LED multiplexing layouts for hand-crafting
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LED multiplexing layouts for hand-crafting
1–10 of 12 posts
Re: LED multiplexing layouts for hand-crafting
#2Clever. You could also use a ring shifter so you only need reset and clock for one of the rows.
Re: LED multiplexing layouts for hand-crafting
#3This is an interesting idea. However, I feel like this could be better addressed by using an addressable chip like the ws2811. These can be chained for quite the distance and you will not get the inherent flickering that comes with the multiplexing approach. They even come in a standard LED form factor with one additional leg for data. This can all be controlled with a single digital pin on an arduino using a library like fastLED.
Re: LED multiplexing layouts for hand-crafting
#4I've been (slowly) working on an 8x8x8 led cube. I'm also soldering all the LEDs together in a somewhat custom way (not a cool diagonal pattern tho). Here's a photo: https://imgur.com/gallery/YjSmFrb
Re: LED multiplexing layouts for hand-crafting
#5This is an interesting idea. However, I feel like this could be better addressed by using an addressable chip like the ws2811. These can be chained for quite the distance and you will not get the inherent flickering that comes with the multiplexing approach. They even come in a standard LED form factor with one additional leg for data. This can all be controlled with a single digital pin on an arduino using a library…
Multiplexing doesn't have to flicker if you do it fast enough.
Re: LED multiplexing layouts for hand-crafting
#6This is an interesting idea. However, I feel like this could be better addressed by using an addressable chip like the ws2811. These can be chained for quite the distance and you will not get the inherent flickering that comes with the multiplexing approach. They even come in a standard LED form factor with one additional leg for data. This can all be controlled with a single digital pin on an arduino using a library…
Multiplexing doesn't have to flicker if you do it fast enough.
^truth, insofar as you cannot detect the flicker
Re: LED multiplexing layouts for hand-crafting
#7This is an interesting idea. However, I feel like this could be better addressed by using an addressable chip like the ws2811. These can be chained for quite the distance and you will not get the inherent flickering that comes with the multiplexing approach. They even come in a standard LED form factor with one additional leg for data. This can all be controlled with a single digital pin on an arduino using a library…
I'm a hobbyist when it comes to RPi/Arduino projects, and I always feel powerless when I do projects like these. There's always a better way to do what you're currently doing, without too much extra costs, and there's no way I could have found out on my own.
It happens almost the opposite when building software (maybe because that's what I do for a living?), but it makes me think that maybe there's a different workflow that I'm not aware of when working on HW projects.
Re: LED multiplexing layouts for hand-crafting
#8This is an interesting idea. However, I feel like this could be better addressed by using an addressable chip like the ws2811. These can be chained for quite the distance and you will not get the inherent flickering that comes with the multiplexing approach. They even come in a standard LED form factor with one additional leg for data. This can all be controlled with a single digital pin on an arduino using a library…
I'm a hobbyist when it comes to RPi/Arduino projects, and I always feel powerless when I do projects like these. There's always a better way to do what you're currently doing, without too much extra costs, and there's no way I could have found out on my own. It happens almost the opposite when building software (maybe because that's what I do for a living?), but it makes me think that maybe there's a different workfl…
Like anything else, just do it. You start somewhere, and gain experience.
Re: LED multiplexing layouts for hand-crafting
#9This is an interesting idea. However, I feel like this could be better addressed by using an addressable chip like the ws2811. These can be chained for quite the distance and you will not get the inherent flickering that comes with the multiplexing approach. They even come in a standard LED form factor with one additional leg for data. This can all be controlled with a single digital pin on an arduino using a library…
I'm a hobbyist when it comes to RPi/Arduino projects, and I always feel powerless when I do projects like these. There's always a better way to do what you're currently doing, without too much extra costs, and there's no way I could have found out on my own. It happens almost the opposite when building software (maybe because that's what I do for a living?), but it makes me think that maybe there's a different workfl…
Don't worry too much about it, there's merit in doing any of the levels anyway. Doing it the way from the article is much closer to the metal than using ws2812 or neopixels. These programmable rgb LEDs are quite complicated, they contain a shift register, three DACs and three LEDs, but they're super convenient if you want to place lights anywhere.
I suggest you look at esp8266 and micropython, if you want to get a quick start. You can get them rather cheaply on aliexpress, along with ws2812 strips. Or you get them from adafruit, which is much quicker but more expensive. Adafruit calls the LEDs neopixel, so Google for that too.
And of course you can message me or anyone here at any time. Doesn't mean we're experts, but we'll help as much as we can.
Re: LED multiplexing layouts for hand-crafting
#10This is an interesting idea. However, I feel like this could be better addressed by using an addressable chip like the ws2811. These can be chained for quite the distance and you will not get the inherent flickering that comes with the multiplexing approach. They even come in a standard LED form factor with one additional leg for data. This can all be controlled with a single digital pin on an arduino using a library…
Seems rather expensive to use so many ws2811s.