【Love Running Water Lantern】
▲ Figure 1 Love running water lamp
● Electronic devices:
LED：48
CD4017：1
NE555p:1
Resistance: 10k
电解电容：10uF/25V
Potentiometer: 103
Battery: 9V
【Battery voltage indication】
▲ Figure 2.1 Battery voltage indicator
● Electronic devices:
Resistance: 100Ω×4
LED: Green LED×4
二极管：1N4007×3
【White Lamppost】
▲ Figure 2.2 White lamppost
● Electronic devices:
Resistance: 1k×6
LED：白色LED×6
Potentiometer: 5kΩ
【Flashing Light Ring】
▲ Figure 3.2 Flashing light ring
● Electronic devices:
RGBLED：25
LED bulb: 7W
【Relay delay switch】
▲ Figure 3.3 Circuit welding diagram
● Electronic devices:
BC547：NPN三极管
Button: One
Resistance: 470Ω
电容：1000uf，16V
【Blue Running Lights】
▲ Figure 6.1 Blue running water lamp
【Zener diode photosensitivity】
▲ Figure 7.1 Photosensitive characteristics of Zener diodes
▲ Figure 7.2 Experimental circuit diagram
1975 electronic watch internal circuit
来自 New Top 3 Electronic Projects 2021 的三个电子作品。 卓晴老师整理。
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