SPI vs DMX for Addressable LED: Which Protocol?
- 2026-09-22 11:55
- /
- Arraystar LED
SPI is simple and cheap for small projects (up to 500 pixels). DMX is professional, reliable and handles 1000+ pixels. Use DMX for commercial installs.
SPI vs DMX Comparison
| Feature | SPI | DMX |
|---|---|---|
| Max pixels | ~500 | 170+ per universe |
| Reliability | Good (short runs) | Excellent (long runs) |
| Wiring | 2 wires | 2 wires + ground |
| Cost | Cheap controller | Professional |
| Best for | DIY, small projects | Commercial, large installs |
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Frequently Asked Questions
Can I mix SPI and DMX?
No. Use a converter or stick to one protocol. SPI and DMX controllers are not compatible.
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