Zum Selbermachen Kits CD4017 + NE555 rotierend LED SMD Löten Praxis Skill Training Board
2,29 €
The middle of the circular circuit for the water lamp circuit, by the CD4017, NE555, light-emitting diodes, welding power can work. Flow Water Lamp Circuit : CD4017,NE888,LED;after correct connnection,it will operate.
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