# RGB LED

## {{@218#bkmrk-open-iot-and-iiot-ga}}

<div drawio-diagram="809"><img src="https://doc.redisage.com/uploads/images/drawio/2024-06/drawing-22-1718894620.png" alt=""/></div>

RGB LED is controlled by SIPO shift register 74HC595BQ.

- SHCP - shift register clock input
- STCP - storage register clock input
- DS - serial data input