Switch

Switch is a device that is used to decide grid, or for them. So switch is essentially a tool connective or cut off the flow of electricity. In addition to a strong flow of electricity, also a small switch-shaped tool used for electronics components flow is weak

The simple switch consists of two metal lath attached to a chain, and can be connected or separate in accordance with the speed (on) or drop out (off) in the series. Contact material is selected generally so that the connection that resistant to corrosion. If the metal used is made of oxide material normal, then the switch will not work often. To reduce the effect of this corrosion, the metal contacts can not be gilded metal with anti corrosion and anti rust. basically the key can be applied to mechanical sensors, because it can serve as guidelines for setting the mikrokontroller tool in controlling