With this circuit, a single transmitter and simple set of user pushbuttons can initiate one of four different outputs, two at each of two remote receivers with very different applications. The ...

[Joel] has a remote control ceiling fan. It’s nothing special, the controller has a low-power 350MHz transmitter and a Holtek encoder to send commands by keying the transmitter’s output. Desiring ...

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One of the big changes arriving with the second-gen Apple TV 4K is the all-new Siri Remote. Along with the new design comes a dedicated power button to control not just the set-top box but also your ...