APA109 Pixel Protocol
An individually addressable RGB LED protocol with a built-in IC, designed for external control via a serial cascade and constant current drive for stable color output.
Overview
APA109 LEDs integrate the control circuit and RGB chip in an SMD package, using a serial data line for precise 24-bit color control. They offer uniform color mixing, built-in signal shaping, and gray level adjustment, ensuring consistent output across long runs. With enhanced transmission stability and power-on reset features, APA109 LEDs are suitable for smooth gradients and complex lighting installations.
Supported Pixel Controllers using APA109
Specifications
| Clock Type | Data-Only |
| Color Resolution | 8 Bits |
| Physical Package | SMD5050 with integrated LEDs |
| RGB | No |
| RGBW | Yes |
| Output Pixel Voltage | 5V |
| PWM Rate | 1200Hz |
| Suitable Camera | Up to 40fps |
| Redundant Data Line | No |