Using this circuit, audio musical notes can be generated and heard up to a distance of 10 metres. The circuit can be divided into two parts: IR music transmitter and receiver. The IR music transmitter ...

This infrared transmitter can be used with this infrared receiver. This transmitter uses. The modulated signal is produced by comparison of an audio signal with a triangle signal of high frequency ...

This nifty little gadget can help solve one of the most annoying TV remote problems, and it even lets you hide boxes behind ...

If your up for starting a quick little project, Hardware Secrets can show you how to build your own IR transmitter for the PC. As the article clip states, if you can use a solder iron, you can build ...

New tech will charge multiple devices in a room, via transmitters that will one day hide in your light fixtures. Jessica Dolcourt VP, Content Operations and Commerce, CNET Group and CNET Labs Jessica ...

[Saulius] couldn’t find a cost-effective wireless scale that did what he wanted, so he reverse engineered the communication protocol for an off the shelf model to get weight data himself. [Saulius] ...