Discussion in '101 Display Basics' started by Jarrad, Mar 11, 2019.

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Now this is the part of school i wished i had paid attention a bit more,
im not getting the hang of calculating how many lights are in 100 nodes.
so lets have a look at s string of 100 Bullet pixels, is it 100 x 3 =300? so for argument sake a pixel tree of 16 strings would then be 100x3x16= 4800?
yes its a bit of a stupid question i know and it was covered elsewhere i just feel like im missing something in the calculations.
go nuts people and explain it to me if the above is wrong, help is always appreciated.

2. ### keithsw1111Full Time Elf

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distinguish between pixels/nodes (which can be used interchangeably) and channels. There are 3 channels per pixel/node. Read the labels carefully because depending on the situation they ask for different things.

3. ### MD389New Elf

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As @keithsw1111 mentioned pixels generally have 3 cahnnels per pixel / node. So in your example you would have 1600 pixels/nodes with a total of 4800 channels.

4. ### videoman3857Full Time Elf

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Not a stupid question and is confusing when you first start out.
Pixels are smart. Nodes are dumb.
There are RGB LEDS in a single light unit.
If you have 16 strings of nodes (dumb RGB) you have 16 strings x 3 channels (RGB) (48 Channels) The LEDS on each string all illuminate at the same time. - ie 100 x blue.
If you have 16 strings of pixels (smart RGB) you have 16 Strings x 3 channels x 100 "lights" (480 channels) Each "light" is programmable to be on , off, or whatever colour you want it to be.

The difference - Dumb RGB - The whole string illuminates the same colour. The whole string is either on or off
- Smart RGB - The whole string can be multiple colours throughout - can turn any of the 100 "lights" on or off.

Tom Zheng likes this.

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