Circuit Diagram and Explanation We need to create three same blocks of circuits for three LEDs (RED, GREEN, BLUE). Here circuitry of one block is explained (Block of Blue LED), other two are the same.

Fig. 2: Actual-size PCB of the multiple-status indicator using a single RGB LED Fig. 3: Components layout for the PCB Download PDF and Component Layout PDFs: click here This circuit can be powered by ...