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Tag: radio frequency

Most people do not realise that there is an abundance of energy all around us, at all times. We are being bombarded with energy waves all day long. Radio and television towers, satellites orbiting the Earth and even mobile...
A frequency counter measures the frequency of an input signal. These are commonly used in laboratories, factories and field environments to provide direct frequency measurements of various devices. Most frequency counters work by using a counter that accumulates the number...
This simple radio frequency (RF) based code lock incorporates a pair of 433MHz ready made RF transmitter and receiver modules. It is a remote-controlled and code-protected locking system. The code is fixed, hence it is easy to implement and...