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 ...

Most of the IR remotes work reliably within a range of 5 metres. The circuit complexity increases if you design the IR transmitter for reliable operation over a longer range, say, 10 metres. To double ...

If you’re looking for “smart” home appliances, there’s no shortage of options on the market. Even relatively low-end gadgets are jumping on the Internet of Things bandwagon these days (for better or ...

Google Assistant smart speakers often only serve a couple of key purposes – to accept commands and play music. With Xiaomi’s new Google Assistant smart speaker, you also get the power to control your ...

ThinkFlood has just killed the first RedEye product which went on sale in December for $188, with the massively-superseding RedEye Mini. It costs only $49 and plugs into the iPhone’s 3.5mm jack ...

A universal sensor transmitter for use in power grid and automotive has been developed by US-based firm Knick. Using an infrared interface, the PolyTrans P 32000 transmitter will recognise the signal ...