PAITOSD: Jangkauan Bluetooth: 100m, 1km, atau 10km?

PAITOSD A toggle switch or tumbler switch is a class of electrical switches that are manually actuated by a mechanical lever, handle, or rocking mechanism. Extremely large switches often have switch contacts surrounded by something other than air to more rapidly extinguish the arc. In the simplest case, a switch has two conductive pieces, often metal, called contacts, connected to an external circuit, that touch to complete (make) the circuit, and separate to open (break) the circuit. The effect is usually unimportant in power circuits, but causes problems in some analogue and logic circuits that respond fast enough to misinterpret the on-off pulses as a data stream.|BellSouth Merilis IBM Simon Personal Communicator