Up to 1024 RGB. Zero Is Also Valid.
An SPI Lamp 2 output drives up to 1024 RGB or 768 RGBW pixels. The minimum is zero, so a unit can sit in a chain purely to pass data along without driving anything of its own.
Per Output
What one unit can drive
Each SPI Lamp 2 has a single four-pole SPI LED output carrying data and power. It addresses up to 1024 RGB pixels, or 768 when the strip is RGBW and every pixel needs a fourth channel.
Zero is accepted as a pixel count. The original SPI Lamp forced a floor, which meant a pass-through unit still consumed addresses it never used.
- Up to 1024 RGB pixels on the output
- Up to 768 RGBW pixels on the output
- Zero is a valid count for a pass-through unit
- Output carries data and power on the same connector
Across the Chain
How the budget is shared
The figure above is the ceiling for a single output. One daisy-chained string also tops out at 1024 RGB or 768 RGBW in total, so the budget is divided between the units on that string rather than multiplied by them.
Plan the split before wiring. Thirty units of thirty pixels each fits comfortably; three units of six hundred each does not.
- 1024 RGB or 768 RGBW in total across one string
- Up to 32 units share that budget
- Set each unit's share on its own display
- Add a second controller output for more pixels
FAQ
Pixel Capacity questions
Up to 1024 RGB or 768 RGBW pixels on its single output.
No. One daisy-chained string carries up to 1024 RGB or 768 RGBW in total, shared between the units on it.
Yes. Zero is a valid pixel count, which lets a unit sit in the chain purely to pass data on.
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