Radio – Wireless
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Wireless Switch Circuit using CD4027
Outline Introduction Circuit Principle Circuit Diagram of Wireless Switch Circuit using CD4027Components RequiredCircuit DesignWireless Switch Circuit Working Introduction In this project, I…
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FM Transmitter Circuit
Here we are building a wireless FM transmitter which uses RF communication to transmit the medium or low power FM…
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FM Audio Transmitter Schematic Circuit Diagram
When the author started thinking about this project he had a simple VHF FM transmitter in mind that could be…
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Radio Control Signal Frame-rate Divider Schematic Circuit Diagram
Model radio-control equipment has evolved considerably over the years, and the humble servo has grown from the 1.5 ms at…
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Radio Remote Control for PDAs and Smartphones Schematic Circuit Diagram
On his website, under the title ‘AVR Blue Remote, the author describes (in German) a Bluetooth-based remote control unit featuring…
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Tuned Radio Frequency (TRF) Receiver Schematic Circuit Diagram
Superheterodyne receivers have been mass-produced since around 1924, but for reasons of cost did not become successful until the 1930s.…
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Shortwave Monitor Schematic Circuit Diagram
This broadband AM receiver enables you to ‘monitor’ the shortwave radio band. The circuit has been deliberately designed to have…
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Two-Transistor Regenerative Receiver Schematic Circuit Diagram
Regenerative? What’s that? In the age of Twitter and smartphones, you can’t assume that things not related to the Internet…
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ATtiny Goes Wireless Schematic Circuit Diagram
In many application areas, it can be very handy to be able to control something wirelessly. This circuit shows how…
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Very Wideband PC Radio Schematic Circuit Diagram
PC radios are certainly nothing unusual. However, unless you are prepared to spend a lot of cash you can’t buy…
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