Page 55 - Electronics Starter Kit_EN

Wiring diagram

13.4 Circuit Explanation

To make this circuit easy to understand, it is almost the same as the previous lesson, we copy it
three times, and change the frequency for each NE555, (R1, R2, R3) are 1MΩ, but C1 is 10uF,
C2 is 4.7uF, C3 is 2.2uF, so we have a different frequency for each output.

The first one which is connected with the red LED, it is the slower one, then the second one
which is connected to the green LED, and the third one which is connected to the blue LED, it is
the faster one.

So each LED will go from dark to full brightness then go back to dark, each one has its
frequency.

13.5 Example Picture

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