Control planning
DMX pixel controller capacity calculator
Translate a physical RGB or RGBW pixel count into data slots, universes, output ports, and controllers—while keeping the hardware assumptions visible.
Planning result
Control capacity estimate
DMX universes required
8
For 1,200 planned pixels including 200 reserve pixels
- Data slots
- 3,600
- Whole pixels / universe
- 170
- Output ports
- 2
- Controllers
- 1
Calculation basis
universes = ceil(planned pixels × slots per pixel ÷ 512)
- • One DMX universe carries 512 data slots; RGB uses 3 slots and RGBW uses 4.
- • Port/controller counts use your entered hardware limits, not an assumed Pileds model.
- • Pixel IC, protocol overhead, frame rate, receiver distances, and power are separate checks.
Technical basis
512 data slots are only the first capacity check
The universe calculation follows ANSI E1.11 DMX512-A's maximum packet size. The separate port and controller estimates use the limits you enter, because usable capacity varies by controller, pixel protocol, refresh rate, topology, and firmware.
Source: ESTA ANSI E1.11 DMX512-A. Confirm the current controller and receiver datasheets before system design.