ELM711
12V
12V
12V
470W
12V
4.7KW
4.7KW
4.7KW
(+)
78L05
2N3904
5V
4 Green
LEDs
12V
external
source
(-)
470W
2N3904
5V
4 Yellow
LEDs
0.01µF
1
2
3
4
8
7
6
5
470W
2N3904
4 Red
LEDs
Pushbutton:
If on, pushing changes the pattern.
Hold for 2 seconds to turn LEDs off.
If off, press momentarily to turn on.
470W
1 White
LED
12V
1KW
4.7KW
2N3904
3 Blue
LEDs
Figure 4. Typical Connections for a Small Christmas Tree
ELM711DSA
Elm Electronics – Circuits for the Hobbyist
7 of 7
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