(InfraRed remote control) A handheld ... closed doors that obstruct the line of sight required by infrared. An IR sensor is located near the TV and wired to the receiver, which can be many ...

and users had to have good aim to hit the sensor. These issues soon led to the introduction of the Zenith Space Command remote control, which used ultrasonic frequencies to control the TV.

Just like device with a microprocessor, wireless sensors have the potential to be compromised. Since they also use ISM bands, cybersecurity needs to be considered. Fortunately, when WSNs were being ...

Flexwave, a Taiwan-based developer of PV solutions for indoor-outdoor applications, has launched a solar PV unit intended to provide 10 years of self-sustaining solar power to remote small-sized ...