Detects and counts inputs and outputs
Suited to control Lamps, Household Appliances etc.
R1 and R2 are two common Photo resistors placed about 1cm apart and both facing the same source of light (e.g. a beam generated by any type of lamp placed on the opposite side of a door threshold). If a person passes through the [...]
That Circuit is an advanced bicycle lighting system which will power your lights and also charge four NiCd batteries while you running in the streets, for keeping the lights on while the bicycle is stoped. Its fully automated without any switches. [...]
Link : Advanced bicycle lightings
Today we try to build warn the moistness or Moisture Activated better. Or do go to use be warn it rains. Because of be the circuit is simple. Follow the circuit will think use Bipolar Transistor just one only. When measure touch the moistness make the electric current flows through to pin B of Q1 [...]
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